CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2023-52389
Critical (9.8) in pocoproject poco. EPSS 0.9% chance of exploitation in the next 30 days.
UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack buffer overflow because Poco::UTF32Encoding::convert() and Poco::UTF32::queryConvert() may return a negative integer if a UTF-32 byte sequence evaluates to a value of 0x80000000 or higher. This is fixed in 1.11.8p2, 1.12.5p2, and 1.13.0.
Severity
- EPSS
- 0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
- CWE
- CWE-190
- Published
- Modified
- Record from
- the NVD, synced
Affected
- pocoproject:poco
References
- https://github.com/pocoproject/poco/compare/poco-1.12.5p2-release...poco-1.13.0-release
- https://github.com/pocoproject/poco/issues/4320
- https://pocoproject.org/blog/?p=1226
- https://github.com/pocoproject/poco/compare/poco-1.12.5p2-release...poco-1.13.0-release
- https://github.com/pocoproject/poco/issues/4320