CVE-2009-3805

Gpg4win 2.0.1 - Denial of Service via Long Certificate Signature

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2009-3805. PoCs published by Dr_IDE.

AI-analyzed exploit summary This PoC generates a malformed GPG certificate that triggers a crash in GPG2/Kleopatra 2.0.11 when imported. The exploit leverages a buffer overflow vulnerability by crafting a certificate with an oversized payload.

Description

gpg2.exe in Gpg4win 2.0.1, as used in KDE Kleopatra 2.0.11, allows remote attackers to cause a denial of service (application crash) via a long certificate signature.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Dr_IDE · pythonlocalwindows
https://www.exploit-db.com/exploits/9884

This PoC generates a malformed GPG certificate that triggers a crash in GPG2/Kleopatra 2.0.11 when imported. The exploit leverages a buffer overflow vulnerability by crafting a certificate with an oversized payload.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: GPG2/Kleopatra 2.0.11 (part of GPG4Win Package v2.0.1)
No auth needed
Prerequisites: Ability to write a file to the target system · User interaction to import the malicious certificate
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/53908
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/36781

Scores

EPSS 0.0137
EPSS Percentile 68.4%

Details

Status published
Products (1)
gpg4win/gpg4win 2.0.1
Published Oct 27, 2009
Tracked Since Feb 18, 2026