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HIGH

CVE-2022-37451

CVSS v3

7.5

HIGH

EPSS Score

3.3 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • CVE-2022-37451 Red Hat Product Security

    Exim: Exim before 4.96 has an invalid free in pam_converse

Full record on NVD

Description

Exim before 4.96 has an invalid free in pam_converse in auths/call_pam.c because store_free is not used after store_malloc.

Technical details

Published
2022-08-06

Frequently asked questions

What is CVE-2022-37451?

Exim before 4.96 has an invalid free in pam_converse in auths/call_pam.c because store_free is not used after store_malloc.

Is CVE-2022-37451 actively exploited?

Active exploitation of CVE-2022-37451 has not been confirmed. Its EPSS score was 3.3% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-37451?

CVE-2022-37451 has a CVSS v3 base score of 7.5 (HIGH severity).

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