Serial Number: AV26-876Date: September 3, 2026 As of September 2, 2026, Cisco is affected by vulnerabilities in the following products: Cisco IOS XR Software Multiple versions Cisco Nexus 9000 Series Switches Multiple products Cisco Desk Phone 9800 Series and Video Phone 8875 Prior to 5.0(1) IP Phone 7800 and 8800 Prior to 14.4(1)SR3 IP Phone 8845 and 8865 Prior to14.4(1)SR4 Wireless IP Phone 8821 Prior to 11.0(6)SR8 The Cyber Centre encourages users and administrators to review the provided…
Cisco heeft kwetsbaarheden verholpen in Cisco Nexus 9000 Series Switches met Silicon One technologie, Cisco IOS XR Software en Cisco Secure Email. De ernstigste kwetsbaarheid betreft Nexus 9000-switches: als TCP 43210 of 43211 bereikbaar is, kan een aanvaller zonder authenticatie code met rootrechten uitvoeren en de switch laten herstarten. De IOS XR-kwetsbaarheden kunnen, afhankelijk van platform en configuratie, diverse beveiligingsfuncties ondermijnen. De Secure Email-kwetsbaarheden kunnen…
Cisco ha rilasciato aggiornamenti di sicurezza che risolvono 9 vulnerabilità, di cui 3 con gravità "critica" e 6 con gravità “alta”, che interessano diversi prodotti.
Classification: Important, Solution: Official Fix, Exploit Maturity: Not Defined, CVSSv3.1: 5.9, CVEs: CVE-2026-20354, CVE-2026-20355, Summary: Multiple vulnerabilities in the Secure/Multipurpose Internet Mail Extensions (S/MIME) decryption functionality of Cisco Secure Email could allow an unauthenticated, remote attacker to recover plain text from encrypted email messages. These vulnerabilities are due to insufficient validation of message integrity. An attacker could exploit these…
Classification: Important, Solution: Official Fix, Exploit Maturity: Not Defined, CVSSv3.1: 7.5, CVEs: CVE-2026-20281, Summary: A vulnerability in Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 that are running Cisco Session Initiation Protocol (SIP) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper memory management when an affected…
Classification: Critical, Solution: Official Fix, Exploit Maturity: Not Defined, CVSSv3.1: 9.8, CVEs: CVE-2026-20274, CVE-2026-20275, CVE-2026-20276, CVE-2026-20277, CVE-2026-20278, CVE-2026-20279, CVE-2026-20280, Summary: As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered…
Classification: Critical, Solution: Official Fix, Exploit Maturity: Not Defined, CVSSv3.1: 9.8, CVEs: CVE-2026-20212, Summary: A vulnerability in the Silicon One integration for Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to execute code with root privileges. This vulnerability exists because TCP ports 43210 and 43211 are accessible in the default Layer 3 (L3) virtual routing and forwarding (VRF). A successful exploit could allow the attacker to connect to…