De multiples vulnérabilités ont été découvertes dans les produits Fortinet. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges et un déni de service à distance.
Fortinet heeft een kwetsbaarheid verholpen in FortiOS (Specifiek voor FortiSASE en FortiSwitchManager). De kwetsbaarheid bevindt zich in de cw_acd daemon in FortiOS en FortiSwitchManager. Deze daemon is kwetsbaar voor exploitatie door externe, niet-geauthenticeerde aanvallers. Door het verzenden van speciaal vervaardigde pakketten of verzoeken, kunnen aanvallers willekeurige code of commando's op de getroffen systemen uitvoeren. **UPDATE** Het Amerikaanse CISA heeft op 9 september de…
Serial number: AV26-023Date: January 13, 2026Updated: September 9, 2026 On January 13, 2026, Fortinet published security advisories to address vulnerabilities in multiple products. Included were critical updates for the following: FortiFone 7.0 – versions 7.0.0 to 7.0.1 FortiFone 3.0 – versions 3.0.13 to 3.0.23 FortiOS 7.6 – versions 7.6.0 to 7.6.3 FortiOS 7.4 – versions 7.4.0 to 7.4.8 FortiOS 7.2 – versions 7.2.0 to 7.2.11 FortiOS 7.0 – versions 7.0.0 to 7.0.17 FortiOS 6.4 – versions 6.4.0 to…
Serial Number: AV26-898Date: September 9, 2026 As of September 8, 2026, Fortinet is affected by vulnerabilities in the following products: FortiOS 7.6 Versions 7.6.1 to 7.6.6 FortiProxy 7.6 Versions 7.6.2 to 7.6.6 FortiPAM Chrome Extension 8.0 All versions FortiPAM Chrome Extension 7.4 All versions FortiSandbox 5.0 Versions 5.0.0 to 5.0.5 FortiSandbox 4.4 Versions 4.4.0 to 4.4.8 FortiSandbox Cloud 5.0 Versions 5.0.4 to 5.0.5 FortiSandbox PaaS 5.0 Versions 5.0.4 to 5.0.5 FortiMonitorOnSight 7.2…
Rilasciati aggiornamenti di sicurezza Fortinet che sanano alcune vulnerabilità, di cui una con gravità “critica” e una con gravità “alta”, in diversi prodotti.
CISA has added four new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2025-25249 Fortinet Multiple Products Heap-based Buffer Overflow Vulnerability CVE-2026-19490 Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel Vulnerability CVE-2026-87491 Google Chromium V8 Out of Bounds Write Vulnerability CVE-2026-20079 Cisco Firewall Management Center Authentication Bypass Using an Alternate Path or Channel…
Fortinet heeft kwetsbaarheden verholpen in FortiAnalyzer, FortiOS, FortiPAM, FortiProxy, FortiSandbox, FortiManager, FortiManager Cloud, FortiMonitorOnSight, FortiClient Windows, FortiSIEM en FortiSOAR. De kwetsbaarheden betreffen verschillende typen fouten in meerdere Fortinet-producten. De ernstigste kwetsbaarheid met kenmerk CVE-2026-26084 heeft een CVSS-score van 8,9. Het betreft een autorisatiekwetsbaarheid in Fortinet FortiSandbox waardoor een ongeauthenticeerde kwaadwillende via speciaal…
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Fortinet FortiSandbox. Authentication is required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.2. The following CVEs are assigned: CVE-2026-84387.
Classification: Important, Solution: Official Fix, Exploit Maturity: Not Defined, CVSSv3.1: 7.3, CVEs: CVE-2026-84393, Summary: An improper certificate validation vulnerability [CWE-295] in FortiOS and FortiProxy Agentless ZTNA portal may allow a remote and unauthenticated attacker to perform a Man-in-the-Middle attack on the communication channel between the ZTNA portal and the backend destination website.
Classification: Critical, Solution: Official Fix, Exploit Maturity: Not Defined, CVSSv3.1: 9.6, CVEs: CVE-2026-84390, Summary: An Inclusion of Sensitive Information in Source Code vulnerability [CWE-540] in FortiMonitorOnSight web portal may allow a remote unauthenticated attacker to bypass authentication via forged or reused JWT
Classification: Critical, Solution: Official Fix, Exploit Maturity: Not Defined, CVSSv3.1: 9.1, CVEs: CVE-2026-84388, Summary: An improper authentication vulnerability [CWE-287] in the Fortinet Privileged Access Agent Chrome Extension may allow a remote unauthenticated attacker to proxy a user's browser traffic through attacker controlled servers if the user visits a malicious website. Remediation for this issue required coordinated changes in two components: FortiPAM and the Fortinet…
CISA added CVE-2025-25249 to the Known Exploited Vulnerabilities catalog. Affected product: Fortinet Multiple Products. Remediation due date: 2026-09-12.
CVSSv3 Score: 7.3 An improper certificate validation vulnerability [CWE-295] in FortiOS and FortiProxy Agentless ZTNA portal may allow a remote and unauthenticated attacker to perform a Man-in-the-Middle attack on the communication channel between the ZTNA portal and the backend destination website. Revised on 2026-09-08 00:00:00
CVSSv3 Score: 4.7 An improper access control vulnerability [CWE-284] in FortiManager may allow an administrator to bypass the approval process for workflow sessions via crafted HTTP or HTTPs requests. Revised on 2026-09-08 00:00:00
CVSSv3 Score: 5.9 A Use of Uninitialized Variable [CWE-457] vulnerability in Fortinet FortiAnalyzer SNMP daemon may allow a remote authenticated attacker with user permission to cause a denial of service via SNMP GETBULK requests. Revised on 2026-09-08 00:00:00
CVSSv3 Score: 8.9 An improper access control vulnerability [CWE-284] in FortiSandbox, FortiSandbox Cloud and FortiSandbox PaaS WEB UI may allow an unauthenticated attacker to access sensitive information via crafted HTTP requests. Revised on 2026-09-08 00:00:00
CVSSv3 Score: 2.8 An URL redirection to untrusted site ('open redirect') [CWE-601] vulnerability in FortiSIEM may allow an authenticated attacker to cause a redirection to any website via specially crafted HTTP requests Revised on 2026-09-08 00:00:00
CVSSv3 Score: 2.5 A NULL Pointer Dereference vulnerability [CWE-476] in FortiOS, FortiProxy and FortiPAM may allow an authenticated attacker to crash the httpsd daemon via crafted HTTP requests. Revised on 2026-09-08 00:00:00
CVSSv3 Score: 9.6 An Inclusion of Sensitive Information in Source Code vulnerability [CWE-540] in FortiMonitorOnSight web portal may allow a remote unauthenticated attacker to bypass authentication via forged or reused JWT Revised on 2026-09-08 00:00:00
CVSSv3 Score: 9.1 An improper authentication vulnerability [CWE-287] in the Fortinet Privileged Access Agent Chrome Extension may allow a remote unauthenticated attacker to proxy a user's browser traffic through attacker controlled servers if the user visits a malicious website. Revised on 2026-09-08 00:00:00
CVSSv3 Score: 6.7 An Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability [CWE-77] in FortiSandbox may allow a privileged attacker to execute unauthorized code or commands via crafted HTTP requests. Revised on 2026-09-08 00:00:00
CVSSv3 Score: 4.9 An Improper Access control vulnerability [CWE-284] in FortiSOAR may allow an authenticated attacker with zero permissions to subscribe to websocket streams and topics and to inject broadcast messages to the stream via crafted websocket requests Revised on 2026-09-08 00:00:00
CVSSv3 Score: 4.7 An Unverified Ownership Vulnerability [CWE-283] in FortiClient Windows fortimon3 driver may allow an authenticated attacker to terminate arbitrary processes via an exposed minifilter communication port. Revised on 2026-09-08 00:00:00
A joint Tenable-SentinelOne analysis of 93 CVE-actor attribution pairs reveals that both state-sponsored actors and cybercriminals independently converge on the same edge infrastructure. Special thanks to SentinelOne® Incident Readiness & Response for their contributions to this publication.It is the shared attack surface where state-sponsored threat actors and financially motivated criminal groups independently converge — not the province of a single adversary category, and not exclusively a…
Fortinet heeft kwetsbaarheden verholpen in FortiWeb. De eerste kwetsbaarheid betreft een Improper Authentication in meerdere versies van FortiWeb, waardoor een externe, niet-geauthenticeerde aanvaller toegang kan krijgen tot de GUI- en CLI-interfaces door het indienen van willekeurige inloggegevens. Deze kwetsbaarheid treedt ook op bij FortiWeb-systemen die zijn geconfigureerd met Remote Radius Type Admin Authentication onder bepaalde niet-standaard instellingen. Hierdoor kan een aanvaller de…
Fortinet heeft een kwetsbaarheid verholpen in FortiManager en FortiManager Cloud versies 7.2.5 tot en met 7.6.1. De kwetsbaarheid betreft een authenticatiebypass via een alternatieve route of kanaal. Een externe, niet-geauthenticeerde aanvaller die beschikt over een geldig certificaat kan zich voordoen als een FortiGate-apparaat dat wordt beheerd door FortiManager door speciaal opgemaakte FGFM-verzoeken te versturen. De oorzaak ligt in onjuiste toegangscontrolemechanismen binnen de getroffen…
Fortinet heeft een kwetsbaarheid verholpen in FortiClient voor Windows. De kwetsbaarheid betreft een klassieke buffer overflow in de verwerking van DNS response packets. Deze ontstaat door een buffer copy operatie zonder controle op de grootte van de input. Hierdoor kan een niet-geauthenticeerde aanvaller kwaadaardige DNS responses opstellen en versturen. Bij succesvolle exploitatie kan de aanvaller willekeurige code uitvoeren binnen de context van de FortiClient applicatie.
De multiples vulnérabilités ont été découvertes dans les produits Fortinet. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges et un déni de service à distance.
Serial number: AV26-812Date: August 12, 2026 As of August 12, 2026, Fortinet is affected by a vulnerability in the following products: FortiClientWindows Prior to or equal to 7.2.11 Prior to or equal to 7.4.3 FortiManager Prior to or equal to 7.61 Prior to or equal to 7.4.5 Prior to or equal to 7.2.9 FortiManager Cloud Prior to or equal to 7.61 Prior to or equal to 7.4.5 Prior to or equal to 7.2.9 FortiWeb Prior to or equal to 8.0.2 Prior to or equal to 7.6.6 Prior to or equal to 7.4.11 Prior…
View CSAF Summary Fortinet has published information on vulnerabilities in FortiOS. This advisory lists the related Siemens Industrial products. Siemens recommends to contact customer support for additional information, and follow Fortinet advisory for workarounds and mitigation measures. The following versions of Siemens RUGGEDCOM APE1808 are affected: RUGGEDCOM APE1808 vers:all/* (CVE-2026-23573, CVE-2026-59839) CVSS Vendor Equipment Vulnerabilities v3 6.1 Siemens Siemens RUGGEDCOM APE1808…
CVSSv3 Score: 5.0 An Allocation of Resources Without Limits or Throttling vulnerability [CWE-770] in FortiOS may allow an unauthenticated attacker to perform a slow HTTP DoS attack on the web interface via crafted HTTP requests. Revised on 2026-08-12 00:00:00
CVSSv3 Score: 5.1 A Stack-based Buffer Overflow vulnerability [CWE-121] in FortiOS explicit proxy may allow an unauthenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands in the context of the WAD daemon via crafted sockets, only if the explicit proxy is configured with Kerberos authentication and SOCKS enabled. Revised on 2026-08-12 00:00:00
CVSSv3 Score: 3.4 A Server-Side request forgery (SSRF) [CWE-918] vulnerability in FortiSIEM GUI may allow an authenticated attacker to send HTTP requests originating from the targeted device via specially crafted HTTP requests Revised on 2026-08-12 00:00:00
CVSSv3 Score: 7.3 A buffer copy without checking size of input vulnerability [CWE-120] in FortiClient Windows may allow an unauthenticated attacker in a position to alter or craft DNS responses to the targeted host to execute arbitrary code via malicious packets. Revised on 2026-08-12 00:00:00
CVSSv3 Score: 7.3 An Authentication Bypass Using an Alternate Path or Channel [CWE-288] vulnerability in FortiManager and FortiManager Cloud may allow a remote unauthenticated attacker to impersonate any FortiGate managed by the FortiManager with a specific CLI option set via crafted FGFM requests if the attacker has a valid certificate. Revised on 2026-08-12 00:00:00
CVSSv3 Score: 4.8 An incomplete list of disallowed inputs [CWE-184] in FortiWeb WAF may allow an unauthenticated attacker to bypass policies via specifically crafted requests. Revised on 2026-08-12 00:00:00
CVSSv3 Score: 8.8 An Improper Authentication vulnerability [CWE-287] in the FortiWeb Remote Radius Type Admin Authentication configured with specific, non-default settings may allow a remote unauthenticated attacker to login into the Fortiweb GUI/CLI with a random username and password Revised on 2026-08-12 00:00:00
FortiGuard Labs analyzes a TrickBot variant that uses DNS tunneling for C2 communication, modular execution, and employs persistence and obfuscation techniques
CVSSv3 Score: 7.7 An Exposure of Resource to Wrong Sphere vulnerability [CWE-668] in FortiSandbox may allow an unauthenticated attacker to access the VNC server of VMs performing scanning via network requests. Revised on 2026-07-14 00:00:00
CVSSv3 Score: 6.9 An Improper Restriction of Communication Channel to Intended Endpoints [CWE-923] vulnerability in FortiSIEM Windows Agent may allow an unauthorized attacker on the same local network to execute arbitrary code via spoofing the supervisors hostname when the Windows device is configured with the 'Supers Override' feature. Revised on 2026-07-14 00:00:00
CVSSv3 Score: 5.9 A Stack-based Buffer Overflow vulnerability [CWE-121] in FortiOS, FortiProxy and FortiPAM may allow a privileged authenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands via crafted HTTP requests. Revised on 2026-07-14 00:00:00
CVSSv3 Score: 6.1 An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] in FortiOS, FortiProxy, FortiPAM and FortiSwitch-Manager Agentless SSL-VPN may allow an authenticated remote user to execute code or commands via crafted requests. Revised on 2026-07-14 00:00:00
CVSSv3 Score: 5.0 An Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability [CWE-22] in FortiOS, FortiPAM, FortiProxy and FortiSwitch Manager may allow a privileged authenticated attacker with physical access to the device to delete the file system via crafted CLI commands. Revised on 2026-07-14 00:00:00
CVSSv3 Score: 7.0 An out of bounds read [CWE-125] vulnerability in FortiAuthenticator may allow a remote unauthenticated attacker to retrieve sensitive information via a specially crafted request. Revised on 2026-07-14 00:00:00
CVSSv3 Score: 6.7 An Improper Certificate Validation vulnerability [CWE-295] in FortiClient EMS may allow a remote unauthenticated attacker to impersonate an AD Connector via a valid API Key. Revised on 2026-07-14 00:00:00
CVSSv3 Score: 3.1 An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') vulnerability [CWE-113] in FortiOS and FortiProxy captive portal may allow an attacker able to intercept and modify a user's authentication request to inject arbitrary headers via crafted HTTP requests. Revised on 2026-07-14 00:00:00
CVSSv3 Score: 3.4 An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') vulnerability [CWE-113] in FortiOS and FortiProxy may allow an attacker in possession of a valid web filter override token to inject arbitrary headers via tricking a user into clicking on a crafted link. Revised on 2026-07-14 00:00:00
CVSSv3 Score: 5.3 An Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability [CWE-80] in FortiSIEM may allow a privileged administrator to execute unauthorized commands via crafted requests. Revised on 2026-07-14 00:00:00
CVSSv3 Score: 4.1 A buffer over-read vulnerability [CWE-126] in FortiOS, FortiProxy, and FortiSASE may allow an authenticated remote attacker to return a portion of device memory in the redirect response via submitting a specially crafted request. Revised on 2026-07-14 00:00:00
Brandväggar är en återkommande utmaning gällande angrepp från hotaktörer. Nu senast den uppmärksammade FortiBleed-läckan, där hotaktörer utnyttjar läckta inloggningsuppgifter i stor skala. [1] Med anledning av angrepp mot brandväggar publicerar CERT-SE information och rekommendationer till berörda organisationer i Sverige.
22. Juni 2026 Beschreibung Fortinet hat letzten Freitag, am 19.5.2026, nun auch ein offizielles Statement zu "FortiBleed" veröffentlicht. Wir hatten zuvor in einem Blog-Artikel unseren aktuellen Wissensstand beschrieben. Bei dieser Angriffswelle handelt es sich nicht um die Ausnutzung einer neuen Schwachstelle. Die Angreifer:innen verwenden stattdessen Zugangsdaten, die bei früheren Sicherheitsvorfällen (u. a. im Zusammenhang mit CVE-2025-59718, CVE-2025-59719 und CVE-2026-24858) erlangt wurden…
Bezpečnostní výzkumníci upozornili na rozsáhlou kampaň zaměřenou na firewally a VPN brány Fortinet, při níž mělo být kompromitováno téměř 74 000 zařízení ve 194 zemích. Útočníci podle zveřejněných informací automatizovaně vyhledávali veřejně dostupná administrační rozhraní, získávali konfigurace zařízení a následně offline prolamovali přístupové údaje. Mezi údajně zasaženými organizacemi jsou nadnárodní společnosti, státní instituce i provozovatelé kritické infrastruktury. Případ zároveň…
Az NBSZ-NKI riasztást ad ki a FortiBleed néven ismertté vált Fortinet VPN és tűzfal eszközöket érintő, jelenleg is aktív kibertámadási tevékenységgel kapcsolatban.
According to the research, the threat actor operates an automated infrastructure that scans the internet for Fortinet devices and attempts authentication using a curated set of previously leaked or compromised credentials. Successful logins are recorded and continuously revali...
CVSSv3 Score: 9.1 An improper neutralization of special elements used in an OS command vulnerability [CWE-78] in FortiSandbox, FortiSandbox Cloud and FortiSandbox PaaS WEB UI may allow an unauthenticated attacker to execute unauthorized commands via specifically crafted HTTP requests. Revised on 2026-06-09 00:00:00
CVSSv3 Score: 6.0 An Internal Asset Exposed to Unsafe Debug Access Level or State vulnerability [CWE-1244] in FortiOS and FortiProxy may allow an authenticated admin to execute lua scripts via crafted CLI commands. Revised on 2026-06-09 00:00:00