Buffer overflow in Yahoo! Messenger 5.6 allows remote attackers to cause a denial of…
Priority LOW 21Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Buffer overflow in Yahoo! Messenger 5.6 allows remote attackers to cause a denial of service (crash) via a file send request (sendfile) with a large number of "%" (percent) characters after the Yahoo ID.
Why it matters now
EPSS 0.04515 91st 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-2003-1135
- 2026-10-03 Alias added: GHSA-3w6m-fc8w-97c4
References
—
More yahoo Messenger vulnerabilities
- TI-2007-03044 Buffer overflow in the Yahoo! Webcam Upload ActiveX control in ywcupl.dll 2.0.1.4 for… CVSS 2.0HIGH 9.3
- TI-2007-04373 Buffer overflow in a certain ActiveX control in YVerInfo.dll before 2007.8.27.1 in the… CVSS 2.0HIGH 9.3
- TI-2007-03045 Buffer overflow in the Yahoo! Webcam Viewer ActiveX control in ywcvwr.dll 2.0.1.4 for… CVSS 2.0HIGH 9.3
- TI-2007-04251 Heap-based buffer overflow in Kakadu kdu_v32m.dll in Yahoo! Messenger 8.1.0.413 allows… CVSS 2.0HIGH 9.3
- TI-2007-01618 Stack-based buffer overflow in the createAndJoinConference function in the AudioConf… CVSS 2.0HIGH 9.3
- TI-2014-06011 Multiple stack-based buffer overflows in Yahoo! Messenger 11.5.0.228 and earlier allow… CVSS 2.0HIGH 9.3
Sources
- CVE-2003-1135 · CVE Program
- CVE-2003-1135 · NVD
- FIRST EPSS
- GHSA-3w6m-fc8w-97c4 · GitHub Advisory Database · CC BY 4.0
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