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Fencer Vulns
critical 9.3

CVE-2008-6563 json

Buffer overflow in the XML parser in Trillian 3.1.9.0, and possibly earlier, allows remote attackers to cause a denial of service (crash) a…

published 2009-03-31 17 y ago modified 2026-06-16 4 mo ago also EUVD-2008-6526

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.6%
EPSS 5.6% chance of exploitation in 30 days, percentile 92%
public exploits
1
Exploit-DB

Summary

Buffer overflow in the XML parser in Trillian 3.1.9.0, and possibly earlier, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted DTD file.

Timeline

  1. First public exploit (EDB-31639)
  2. Published

Exploit prediction

5.63% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-31639 Trillian 3.1.9 - '.DTD' File XML Parser Buffer Overflow remote, 2008-04-11
  • securityfocus.com http://www.securityfocus.com/bid/28747 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-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.