Cyber Resilience

CVE-2023-52389

Critical

Published: 27 January 2024

Published
27 January 2024
Modified
29 May 2025
KEV Added
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Patch
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CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0013 32.3th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-52389 is a critical-severity Integer Overflow or Wraparound (CWE-190) vulnerability in Pocoproject Poco. Its CVSS base score is 9.8 (Critical).

Operationally, ranked at the 32.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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,…

more

1.12.5p2, and 1.13.0.

CWE(s)
CWE-190

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

pocoproject
poco
1.11.8, 1.12.5 · ≤ 1.11.8 · 1.12.0 — 1.12.5

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References