Cisco Unified Presence before 8.5(4) does not properly detect recursion during entity…
Priority LOW 36CWE-776Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Cisco Unified Presence before 8.5(4) does not properly detect recursion during entity expansion, which allows remote attackers to cause a denial of service (memory and CPU consumption, and process crash) via a crafted XML document containing a large number of nested entity references, aka Bug IDs CSCtq89842 and CSCtq88547, a similar issue to CVE-2003-1564.
Why it matters now
EPSS 0.01768 78th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2011-3288
- 2026-10-03 Alias added: GHSA-66wf-g54m-27m7
References
More Cisco Unified Presence vulnerabilities
- TI-2008-01106 The Disaster Recovery Framework (DRF) master server in Cisco Unified Communications… CVSS 2.0HIGH 10.0
- TI-2012-03362 Cisco Unified Presence (CUP) before 8.6(3) and Jabber Extensible Communications Platform… CVSS 2.0HIGH 7.8
- TI-2013-03015 Memory leak in Cisco Unified Communications Manager IM and Presence Service before… CVSS 2.0HIGH 7.8
- TI-2008-01669 The SIP Proxy (SIPD) service in Cisco Unified Presence before 6.0(3) allows remote… CVSS 2.0HIGH 7.8
- TI-2008-01668 The Presence Engine (PE) service in Cisco Unified Presence before 6.0(1) allows remote… CVSS 2.0HIGH 7.8
- TI-2008-01110 The Presence Engine (PE) service in Cisco Unified Presence before 6.0(1) allows remote… CVSS 2.0HIGH 7.8
Sources
- CVE-2011-3288 · CVE Program
- CVE-2011-3288 · NVD
- FIRST EPSS
- GHSA-66wf-g54m-27m7 · GitHub Advisory Database · CC BY 4.0
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