CVE-2026-76493
Cisco Expressway Series Software Hardening Release: October 2026 - Uncaught Exception Vulnerabilities
CVE-2026-76493 is a high vulnerability (CVSS 7.5) in Cisco Telepresence Video Communication Server (vcs) Expressway, published October 21, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.37%, the 30th percentile. No source names a fixed version.
- Severity
- 7.5 HighCVSS 3.1, CVE List
- Exploit chance
- 0.37%EPSS, 30th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
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-2026-76493 are related to issues concerning uncaught exceptions that are grouped under the Common Weakness Enumeration (CWE) Base CWE-248.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
Affected products
What each source reports
CVE List Score used
Cisco Expressway Series Software Hardening Release: October 2026 - Uncaught Exception Vulnerabilities
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-2026-76493 are related to issues concerning uncaught exceptions that are grouped under the Common Weakness Enumeration (CWE) Base CWE-248.
- Record
CVE-2026-76493- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-248
- Updated
- 2026-11-07
EUVDEUVD-2026-107354
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-2026-76493 are related to issues concerning uncaught exceptions that are grouped under the Common Weakness Enumeration (CWE) Base CWE-248.
- Record
EUVD-2026-107354- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-07
GitHub AdvisoriesGHSA-5x6f-5q5v-vc4x
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco...
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-2026-76493 are related to issues concerning uncaught exceptions that are grouped under the Common Weakness Enumeration (CWE) Base CWE-248.
- Record
GHSA-5x6f-5q5v-vc4x- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-248
- Updated
- 2026-11-07
NVD
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-2026-76493 are related to issues concerning uncaught exceptions that are grouped under the Common Weakness Enumeration (CWE) Base CWE-248.
- Record
CVE-2026-76493- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-248
- Updated
- 2026-11-07
History
| Recorded | Changed | Sources |
|---|---|---|
| references | CVE List | |
| facts | EUVD | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.