What is CVE-2023-52389?

CVE-2023-52389 is a critical-severity vulnerability in Pocoproject Poco, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2024-01-27.

How severe is CVE-2023-52389?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2023-52389 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Integer overflow in Pocoproject Poco

CVE-2023-52389

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.

Vulnerability class: Integer Overflow

EPSS: 0.009 (54.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Pocoproject Poco — versions 1.11.8, 1.12.5
N/a — versions n/a

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

Public proof-of-concept exploits

adegoodyer/kubernetes-admin-toolkit

References

Frequently asked questions

What is CVE-2023-52389?: CVE-2023-52389 is a critical-severity vulnerability in Pocoproject Poco, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2024-01-27.
How severe is CVE-2023-52389?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-52389 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.