Is CVE-2022-45142 actively exploited?

No active exploitation of CVE-2022-45142 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-45142 be exploited remotely?

Yes. CVE-2022-45142 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-45142?

CVE-2022-45142 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2022-45142

CWE-354Published: March 6, 2023· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

The fix for CVE-2022-3437 included changing memcmp to be constant time and a workaround for a compiler bug by adding "!= 0" comparisons to the result of memcmp. When these patches were backported to the heimdal-7.7.1 and heimdal-7.8.0 branches (and possibly other branches) a logic inversion sneaked in causing the validation of message integrity codes in gssapi/arcfour to be inverted.

NVD Source

Technical Analysis

CVE-2022-45142 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 7.5.