Hashcash maintains a focused, specialized proof-of-work library used in cryptographic and anti-spam applications, with its vulnerability profile centered on the hashcash product itself. The observed weakness classes—code injection and memory-buffer control issues—reflect the low-level computational and input-handling demands of the library's domain. Current severity, exploitation, and exposure counts are shown alongside this summary.
The number and severity of CVEs published that impact products developed by Hashcash over time
Signals from CVEs in this vendor scope (3 CVEs).
3 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2006-3750MEDIUM PHP remote file inclusion vulnerability in server.php in the Hashcash Component (com_hashcash) 1.2.1 for Joomla! allows remote attackers to execute arbitrary PHP code via a URL in | Jul 21, 2006 | 6.8 | 28 | NO | YES |
CVE-2006-3251HIGH Heap-based buffer overflow in the array_push function in hashcash.c for Hashcash before 1.21 might allow attackers to execute arbitrary code via crafted entries. | Jun 27, 2006 | 7.5 | 20 | NO | NO |
CVE-2005-0687HIGH 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 specifi | Mar 6, 2005 | 7.5 | 20 | NO | NO |
Signals from CVEs in this vendor scope (3 CVEs).
An overview of all social media posts that mention a CVE ID that affects a product developed by Hashcash.
Media articles that mention a CVE ID that affects a product developed by Hashcash — matched by CVE ID, not by vendor name.