CVE-2005-0687
Format string vulnerability in Hashcash 1.16 allows remote attackers to cause a denial of service...
Format string vulnerability in Hashcash 1.16 allows remote attackers to cause a denial of service (memory consumption) and possibly execute arbitrary code via format string specifiers in a reply address, which is not properly handled when printing the header.
Exploit likelihood
What each source reports
NVD Score used
Format string vulnerability in Hashcash 1.16 allows remote attackers to cause a denial of service (memory consumption) and possibly execute arbitrary code via format string specifiers in a reply address, which is not properly handled when printing the header.
- Record
CVE-2005-0687- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
Format string vulnerability in Hashcash 1.16 allows remote attackers to cause a denial of service (memory consumption) and possibly execute arbitrary code via format string specifiers in a reply address, which is not properly handled when printing the header.
- Record
CVE-2005-0687- Updated
- 2026-11-02
EUVDEUVD-2005-0688 No score
Format string vulnerability in Hashcash 1.16 allows remote attackers to cause a denial of service (memory consumption) and possibly execute arbitrary code via format string specifiers in a reply address, which is not properly handled when printing the header.
- Record
EUVD-2005-0688- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5w7r-v534-x375 No score
Format string vulnerability in Hashcash 1.16 allows remote attackers to cause a denial of service...
Format string vulnerability in Hashcash 1.16 allows remote attackers to cause a denial of service (memory consumption) and possibly execute arbitrary code via format string specifiers in a reply address, which is not properly handled when printing the header.
- Record
GHSA-5w7r-v534-x375- Updated
- 2026-11-02
OSV No score
Format string vulnerability in Hashcash 1.16 allows remote attackers to cause a denial of service (memory consumption) and possibly execute arbitrary code via format string specifiers in a reply address, which is not properly handled when printing the header.
- Record
CVE-2005-0687- Updated
- 2026-11-02
OSVDEBIAN-CVE-2005-0687 No score
Format string vulnerability in Hashcash 1.16 allows remote attackers to cause a denial of service (memory consumption) and possibly execute arbitrary code via format string specifiers in a reply address, which is not properly handled when printing the header.
- Record
DEBIAN-CVE-2005-0687- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2005-0687 is a high vulnerability (CVSS 7.5) in Hashcash, published March 6, 2005. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.88%, the 86th percentile. Fixed in hashcash 1.17-1.