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Fencer Vulns
critical 9.3

CVE-2009-3838 json

Stack-based buffer overflow in Pegasus Mail (PMail) 4.41 and possibly 4.51 allows remote POP3 servers to cause a denial of service (applica…

published 2009-11-02 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-3809

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.2%
EPSS 6.2% chance of exploitation in 30 days, percentile 93%
public exploits
1
Exploit-DB

Summary

Stack-based buffer overflow in Pegasus Mail (PMail) 4.41 and possibly 4.51 allows remote POP3 servers to cause a denial of service (application crash) or possibly execute arbitrary code via a long error message.

Timeline

  1. First public exploit (EDB-9957)
  2. Published

Exploit prediction

6.21% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-9957 Pegasus Mail Client 4.51 - Remote Buffer Overflow remote, 2009-10-23
  • securityfocus.com http://www.securityfocus.com/bid/36797 referenced PoC, tagged "exploit" by a source, unverified
  • securitytracker.com http://www.securitytracker.com/id?1023075 referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.org http://www.packetstormsecurity.org/0910-exploits/pegasusmc-dos.txt 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.