CVE-2026-76462

CVE Enrichment

CVSS: 5.5 MEDIUM
CISA KEV: Not listed

Description

A vulnerability in the interprocess communication (IPC) channel of the Secure Firewall Posture module in Cisco Secure Client could allow an authenticated, local attacker to elevate privileges on an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a series of crafted IPC messages to a local socket. A successful exploit could allow the attacker to perform limited file write operations on the filesystem with SYSTEM or root privileges. Although this vulnerability affects the Secure Firewall Posture module in Cisco Secure Client on Windows, macOS, and Linux operating systems, this vulnerability could be used to obtain full root privileges on macOS and Linux. For that reason Cisco has assigned this security advisory a Security Impact Rating (SIR) of High rather than Medium as the score indicates.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: [email protected]
Published: 22-Oct-2026 00:19
Last Modified: 22-Oct-2026 01:54
CWE: CWE-20

CVSS Vector


            CVSS:3.1                            AV:L /
                            AC:L /
                            PR:L /
                            UI:N /
                            S:U /
                            C:N /
                            I:H /
                            A:N

References

[email protected]

Last enrichment sync: 22-Oct-2026 21:34
Sources: NVD · FIRST EPSS · CISA KEV
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Reported Context (1)

and a high-severity privilege escalation bug in Secure Client’s Secure Firewall Posture module (CVE-2026-76462). Cisco Patches 34 Vulnerabilities Across Multiple Products

CVE (7)

Vendors (1)

Products (18)

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