Servers and applications
CVE-2008-1721
Integer signedness error in the zlib extension module in Python 2.5.2 and earlier allows remote attackers to execute arbitrary code via a negative signed integer, which triggers insufficient memory allocation and a buffer overflow.
- Severity
- High 7.5
- Published
- 10 Apr 2008
- Last changed
- 16 Jun 2026
- Added to UpHeron
- 21 Oct 2026
- Fixed in
- 2.4.6
- Exploit chance
- 23% in the next 30 daysHigher than 97% of CVEs. EPSS by FIRST, 12 Nov 2026
- Attack
- Over the network · No login needed
- Attacker can
- Read some data · Change some data · Slow it down
- CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
PythonServers and applications · cpe:a:python:python |
|