Integer underflow in Doomsday (aka deng) 1.9.0-beta5.1 and earlier allows remote…
Priority LOW 27CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Partial
- 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
Integer underflow in Doomsday (aka deng) 1.9.0-beta5.1 and earlier allows remote attackers to cause a denial of service (daemon crash) via a PKT_CHAT packet with a data length less than 3, which triggers an erroneous malloc, possibly related to the Sv_HandlePacket function in sv_main.c.
Why it matters now
EPSS 0.0215 82nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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-2007-4643
- 2026-10-03 Alias added: GHSA-6h87-2fpc-x688
References
Exploit 1
Advisory 2
More Doomsday vulnerabilities
- TI-2007-04494 Multiple buffer overflows in Doomsday (aka deng) 1.9.0-beta5.1 and earlier allow remote… CVSS 2.0HIGH 10.0
- TI-2006-01567 Format string vulnerability in the (1) Con_message and (2) conPrintf functions in… CVSS 2.0HIGH 7.5
- TI-2007-04496 Format string vulnerability in the Cl_GetPackets function in cl_main.c in the client in… CVSS 2.0HIGH 7.5
Sources
- CVE-2007-4643 · CVE Program
- CVE-2007-4643 · NVD
- FIRST EPSS
- GHSA-6h87-2fpc-x688 · GitHub Advisory Database · CC BY 4.0
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