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Fencer Vulns
critical 9.3

CVE-2007-2931 in the critical feed json

Heap-based buffer overflow in Microsoft MSN Messenger 6.2, 7.0, and 7.5, and Live Messenger 8.0 allows user-assisted remote attackers to ex…

published 2007-08-31 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-2923

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
55.5%
EPSS 55.5% chance of exploitation in 30 days, percentile 99%
public exploits
2
Exploit-DB

Summary

Heap-based buffer overflow in Microsoft MSN Messenger 6.2, 7.0, and 7.5, and Live Messenger 8.0 allows user-assisted remote attackers to execute arbitrary code via unspecified vectors involving video conversation handling in Web Cam and video chat sessions.

Timeline

  1. First public exploit (EDB-30537)
  2. Published

Exploit prediction

55.45% chance of exploitation in the next 30 days, higher than 99% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-30537 Microsoft MSN Messenger 8.0 - Video Conversation Buffer Overflow remote, 2007-08-28
  • EDB-4334 Microsoft MSN Messenger 7.x/8.0? - Video Remote Heap Overflow remote, 2007-08-29
  • securityfocus.com http://www.securityfocus.com/bid/25461 referenced PoC, tagged "exploit" by a source, unverified
  • team509.com http://www.team509.com/modules.php?name=News&file=article&sid=50 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.