Skip to content
Fencer Vulns
critical 9.3

CVE-2007-4391 json

Heap-based buffer overflow in Kakadu kdu_v32m.dll in Yahoo!

published 2007-08-17 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-4374

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
9.3%
EPSS 9.3% chance of exploitation in 30 days, percentile 95%
public exploits
2
Exploit-DB

Summary

Heap-based buffer overflow in Kakadu kdu_v32m.dll in Yahoo! Messenger 8.1.0.413 allows remote attackers to cause a denial of service (application crash) via a certain length field in JPEG2000 data, as demonstrated by sending an "invite to view my webcam" request, and then injecting a DLL into the attacker's peer Yahoo! Messenger application when this request is accepted.

Timeline

  1. First public exploit (EDB-30500)
  2. Published

Exploit prediction

9.31% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-30500 Yahoo! Messenger 8.1 - 'KDU_V32M.DLL' Remote Denial of Service dos, 2007-08-15
  • EDB-4335 Yahoo! Messenger 8.1.0.413 - 'webcam' Remote Crash dos, 2007-08-29

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.