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Fencer Vulns
critical 9.0

CVE-2008-6899 json

Multiple buffer overflows in freeSSHd 1.2.1 allow remote authenticated users to cause a denial of service (crash) and execute arbitrary cod…

published 2009-08-05 17 y ago modified 2026-06-16 4 mo ago also EUVD-2008-6859

cvss
9.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.3%
EPSS 5.3% chance of exploitation in 30 days, percentile 92%
public exploits
1
Exploit-DB

Summary

Multiple buffer overflows in freeSSHd 1.2.1 allow remote authenticated users to cause a denial of service (crash) and execute arbitrary code via a long (1) open, (2) unlink, (3) mkdir, (4) rmdir, or (5) stat SFTP command.

Timeline

  1. First public exploit (EDB-8295)
  2. Published

Exploit prediction

5.29% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-8295 freeSSHd 1.2.1 - 'rename' Remote Buffer Overflow (SEH) remote, 2009-03-27
  • securityfocus.com http://www.securityfocus.com/bid/32972 referenced PoC, tagged "exploit" by a source, unverified
  • bmgsec.com.au http://www.bmgsec.com.au/advisories/freeSSHd-bof.txt referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 9.0 AV:N/AC:L/Au:S/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.