CVE-2026-76496

HIGH

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Expressway Series software engineering team has conducted a comprehensive internal security review. This r...

Affects 0 products across 1 vendor.

CVSS 3.17.0
EPSS0.2%
Percentile5th
PatchUnknown
CVSS Vector — Plain English Requires local access, high complexity, low privileges required, no user interaction needed, impact contained to the vulnerable component, full confidentiality impact, full integrity impact, full availability impact.
CWE Weakness Definitions
CWE-59: Improper Link Resolution Before File Access

Software follows symbolic links without verifying the target, allowing read, write, or delete of unintended files.

Related Attack Patterns (CAPEC)
CAPEC-35 Leverage Executable Code in Non-Executable Files
via CWE-59
CAPEC-76 Manipulating Web Input to File System Calls
via CWE-59
CAPEC-132 Symlink Attack
via CWE-59
CAPEC-17 Using Malicious Files
via CWE-59

Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.

◆ AI Analysis — automated analysis, not human-reviewed

A high severity vulnerability (CVE-2026-76496) affects the target system. As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Expressway Series software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that ad...

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Frequently Asked Questions
What is CVE-2026-76496?
A high severity vulnerability (CVE-2026-76496) affects the target system. As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Expressway Series software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that ad...
What is the CVSS score for CVE-2026-76496?
CVE-2026-76496 has CVSS 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS: 0.2%.
Is CVE-2026-76496 actively exploited?
No confirmed active exploitation of CVE-2026-76496 as of 2026-10-29.
How do I remediate CVE-2026-76496?
Advisory: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-exwy-hardening-FhcqBVcs
What systems are affected by CVE-2026-76496?
CVE-2026-76496 affects Cisco.
Vulnerability Details
CVE IDCVE-2026-76496
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Published2026-10-21
Last Modified2026-10-22
ICS Relevance70%
Weakness (CWE)
Improper Link Resolution Before File Access
SourceNVD
Official Description

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Expressway Series software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities.   The vulnerabilities tracked by CVE-2026-76496 are related to issues concerning improper link resolutions that are grouped under the Common Weakness Enumeration (CWE) Base CWE-59.

Source: NIST NVD / MITRE CVE Database

Affected Products
VendorProductAffected Versions
Cisco — —
Remediation
View Vendor Advisory →
Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 7 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
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