CVE-2012-2135
The utf-16 decoder in Python 3.1 through 3.3 does not update the aligned_end variable after...
CVE-2012-2135 is a medium vulnerability (CVSS 6.4) in Python, published August 14, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.55%, the 91st percentile. No source names a fixed version.
The utf-16 decoder in Python 3.1 through 3.3 does not update the aligned_end variable after calling the unicode_decode_call_errorhandler function, which allows remote attackers to obtain sensitive information (process memory) or cause a denial of service (memory corruption and crash) via unspecified vectors.
Exploit likelihood
What each source reports
NVD Score used
The utf-16 decoder in Python 3.1 through 3.3 does not update the aligned_end variable after calling the unicode_decode_call_errorhandler function, which allows remote attackers to obtain sensitive information (process memory) or cause a denial of service (memory corruption and crash) via unspecified vectors.
- Record
CVE-2012-2135- CVSS 2.0
- 6.4 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:P - Updated
- 2026-11-02
CVE List No score
The utf-16 decoder in Python 3.1 through 3.3 does not update the aligned_end variable after calling the unicode_decode_call_errorhandler function, which allows remote attackers to obtain sensitive information (process memory) or cause a denial of service (memory corruption and crash) via unspecified vectors.
- Record
CVE-2012-2135- Updated
- 2026-11-02
EUVDEUVD-2012-2135 No score
The utf-16 decoder in Python 3.1 through 3.3 does not update the aligned_end variable after calling the unicode_decode_call_errorhandler function, which allows remote attackers to obtain sensitive information (process memory) or cause a denial of service (memory corruption and crash) via unspecified vectors.
- Record
EUVD-2012-2135- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rgg2-785f-2868 No score
The utf-16 decoder in Python 3.1 through 3.3 does not update the aligned_end variable after...
The utf-16 decoder in Python 3.1 through 3.3 does not update the aligned_end variable after calling the unicode_decode_call_errorhandler function, which allows remote attackers to obtain sensitive information (process memory) or cause a denial of service (memory corruption and crash) via unspecified vectors.
- Record
GHSA-rgg2-785f-2868- Updated
- 2026-11-02
OSVPSF-2012-6 No score
Vulnerability in the utf-16 decoder after error handling
The utf-16 decoder in Python 3.1 through 3.3 does not update the aligned_end variable after calling the unicode_decode_call_errorhandler function, which allows remote attackers to obtain sensitive information (process memory) or cause a denial of service (memory corruption and crash) via unspecified vectors.
- Record
PSF-2012-6- Updated
- 2026-11-02
Affected products
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |