Heap-based buffer overflow in Cisco Unified IP Phone 7940, 7940G, 7960, and 7960G running…
Priority MEDIUM 45CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
Heap-based buffer overflow in Cisco Unified IP Phone 7940, 7940G, 7960, and 7960G running SIP firmware might allow remote SIP servers to execute arbitrary code via a crafted challenge/response message.
Why it matters now
EPSS 0.02891 86th 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
CPE configurations NVD · 14
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:cisco:unified_ip_phone:7906g:*:*:*:*:*:*:* | 7906g | Running on | Cisco |
| cpe:2.3:h:cisco:unified_ip_phone:7911g:*:*:*:*:*:*:* | 7911g | Running on | Cisco |
| cpe:2.3:h:cisco:unified_ip_phone:7935:*:*:*:*:*:*:* | 7935 | Running on | Cisco |
| cpe:2.3:h:cisco:unified_ip_phone:7936:*:*:*:*:*:*:* | 7936 | Running on | Cisco |
| cpe:2.3:h:cisco:unified_ip_phone:7940:*:*:*:*:*:*:* | 7940 | Running on | Cisco |
| cpe:2.3:h:cisco:unified_ip_phone:7940g:*:*:*:*:*:*:* | 7940g | Running on | Cisco |
| cpe:2.3:h:cisco:unified_ip_phone:7941g:*:*:*:*:*:*:* | 7941g | Running on | Cisco |
| cpe:2.3:h:cisco:unified_ip_phone:7960:*:*:*:*:*:*:* | 7960 | Running on | Cisco |
| cpe:2.3:h:cisco:unified_ip_phone:7960g:*:*:*:*:*:*:* | 7960g | Running on | Cisco |
| cpe:2.3:h:cisco:unified_ip_phone:7961g:*:*:*:*:*:*:* | 7961g | Running on | Cisco |
- cpe:2.3:h:cisco:unified_ip_phone:7906g:*:*:*:*:*:*:* Versions 7906g Running on ·Cisco
- cpe:2.3:h:cisco:unified_ip_phone:7911g:*:*:*:*:*:*:* Versions 7911g Running on ·Cisco
- cpe:2.3:h:cisco:unified_ip_phone:7935:*:*:*:*:*:*:* Versions 7935 Running on ·Cisco
- cpe:2.3:h:cisco:unified_ip_phone:7936:*:*:*:*:*:*:* Versions 7936 Running on ·Cisco
- cpe:2.3:h:cisco:unified_ip_phone:7940:*:*:*:*:*:*:* Versions 7940 Running on ·Cisco
- cpe:2.3:h:cisco:unified_ip_phone:7940g:*:*:*:*:*:*:* Versions 7940g Running on ·Cisco
- cpe:2.3:h:cisco:unified_ip_phone:7941g:*:*:*:*:*:*:* Versions 7941g Running on ·Cisco
- cpe:2.3:h:cisco:unified_ip_phone:7960:*:*:*:*:*:*:* Versions 7960 Running on ·Cisco
- cpe:2.3:h:cisco:unified_ip_phone:7960g:*:*:*:*:*:*:* Versions 7960g Running on ·Cisco
- cpe:2.3:h:cisco:unified_ip_phone:7961g:*:*:*:*:*:*:* Versions 7961g Running on ·Cisco
Show 4 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:cisco:unified_ip_phone:7970g:*:*:*:*:*:*:* | 7970g | Running on | Cisco |
| cpe:2.3:h:cisco:unified_ip_phone:7971g:*:*:*:*:*:*:* | 7971g | Running on | Cisco |
| cpe:2.3:a:cisco:skinny_client_control_protocol_\(sccp\)_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
| cpe:2.3:a:cisco:session_initiation_protocol_\(sip\)_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
- cpe:2.3:h:cisco:unified_ip_phone:7970g:*:*:*:*:*:*:* Versions 7970g Running on ·Cisco
- cpe:2.3:h:cisco:unified_ip_phone:7971g:*:*:*:*:*:*:* Versions 7971g Running on ·Cisco
- cpe:2.3:a:cisco:skinny_client_control_protocol_\(sccp\)_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
- cpe:2.3:a:cisco:session_initiation_protocol_\(sip\)_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2008-0531
- 2026-10-03 Alias added: GHSA-2w9x-qwqq-9qpw
References
More Cisco Session Initiation Protocol (sip) Firmware vulnerabilities
- TI-2008-00502 Buffer overflow in Cisco Unified IP Phone 7940, 7940G, 7960, and 7960G running SCCP and… CVSS 2.0HIGH 10.0
- TI-2008-00501 Buffer overflow in the telnet server in Cisco Unified IP Phone 7906G, 7911G, 7941G… CVSS 2.0HIGH 10.0
- TI-2008-00500 Buffer overflow in Cisco Unified IP Phone 7940, 7940G, 7960, and 7960G running SIP… CVSS 2.0HIGH 10.0
- TI-2008-00499 The HTTP server in Cisco Unified IP Phone 7935 and 7936 running SCCP firmware allows… CVSS 2.0HIGH 7.8
- TI-2008-00498 Cisco Unified IP Phone 7940, 7940G, 7960, and 7960G running SCCP firmware allows remote… CVSS 2.0HIGH 7.8
Sources
- CVE-2008-0531 · CVE Program
- CVE-2008-0531 · NVD
- FIRST EPSS
- GHSA-2w9x-qwqq-9qpw · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences