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Back to active CVEs
High · CVSS 7.5CVE-2026-76481

Cisco Unified Communications Products Hardening Release: October 2026 - Improper Check or Handling of Exceptional Conditions VulnerabilitiesCVE-2026-76481

Answer in brief

CVE-2026-76481 records a High severity (CVSS 7.5) vulnerability in Cisco Unified Communications Products Hardening Release: October 2026 - Improper Check or Handling of Exceptional Conditions Vulnerabilities. The current sources do not mark it as known exploited. The current feed maps Cisco/Cisco Emergency Responder (generic), Cisco/Cisco Unified Communications Manager (generic), Cisco/Cisco Unified Communications Manager IM and Presence Service (generic), Cisco/Cisco Unity Connection (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 21, 2026Updated Oct 21, 2026Source checked Oct 21, 2026First seen by HOL Oct 21, 2026Material review Oct 21, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.5
Exploitation
Not marked as known exploited
Affected software
4 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Cisco/Cisco Emergency Responder (generic), Cisco/Cisco Unified Communications Manager (generic), Cisco/Cisco Unified Communications Manager IM and Presence Service (generic), Cisco/Cisco Unity Connection (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Cisco/Cisco Emergency Respondergeneric14 || 14SU1 || 14SU2 || 14SU3 || 14SU3a || 15 || 15SU1 || 15SU1a || 14SU4 || 15SU2 || 15SU3 || 14SU5 || 15SU4 || 14SU6Not reported
Cisco/Cisco Unified Communications Managergeneric14 || 14SU1 || 14SU2 || 14SU3 || 15 || 15SU1 || 14SU4 || 14SU4a || 15SU1a || 15SU2 || 15.0.1.13010-1 || 15.0.1.13011-1 || 15.0.1.13012-1 || 15.0.1.13013-1 || 15.0.1.13014-1 || 15.0.1.13015-1 || 15.0.1.13016-1 || 15.0.1.13017-1 || 15SU3a || 14SU5 || 15SU4 || 15SU4a || 14SU6Not reported
Cisco/Cisco Unified Communications Manager IM and Presence Servicegeneric14 || 14SU1 || 14SU2 || 14SU2a || 14SU3 || 15 || 15SU1 || 14SU4 || 15SU2 || 15SU3 || 14SU5 || 15SU4 || 14SU6Not reported
Cisco/Cisco Unity Connectiongeneric14 || 14SU1 || 14SU2 || 14SU3 || 14SU3a || 15 || 15SU1 || 14SU4 || 15SU2 || 15SU3 || 14SU5 || 15SU4 || 14SU6Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Cisco/Cisco Emergency Responder, Cisco/Cisco Unified Communications Manager, Cisco/Cisco Unified Communications Manager IM and Presence Service.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Oct 21, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 21, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 21, 2026

Sources and claim methodology

  • Source referencesec.cloudapps.cisco.com
Upstream source description

As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams for Cisco Emergency Responder, Cisco Prime Collaboration Deployment, Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), and Cisco Unity Connection have conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76481 are related to issues concerning improper handling of exceptional conditions that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-703.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Cisco Unified Communications Products Hardening Release: October 2026 - Improper control of a resource through its lifetime.Same cisco/cisco emergency responder package
  • Cisco Unified Communications Products Hardening Release: October 2026 - Improper Authentication VulnerabilitiesSame cisco/cisco emergency responder package
  • Cisco Unified Communications Products Hardening Release: October 2026 - Cross-site Scripting VulnerabilitiesSame cisco/cisco emergency responder package
  • Cisco Unified Communications Products Hardening Release: October 2026 - Improper Input Validation VulnerabilitiesSame cisco/cisco emergency responder package
  • Cisco Unified Communications Products Hardening Release: October 2026 - Injection VulnerabilitiesSame cisco/cisco emergency responder package
  • Cisco Unified Communications Products Hardening Release: October 2026 - Improper Access Control VulnerabilitiesSame cisco/cisco emergency responder package

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-703
Source
CVE List V5
Source checked
Oct 21, 2026
References
1 linked source
Open source record