Is CVE-2022-37451 in the CISA KEV catalog?

No. CVE-2022-37451 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-37451?

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

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

CVE-2022-37451 has an EPSS score of 2.55% (83th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-37451?

Upgrade exim4 on debian 12 to 4.95-4 or later.

CVE & CISA-KEV Catalog

CVE-2022-37451

HIGHEPSS 83th pctl

7.5

CVSS v3

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.

CWE-763

How to fix

Remediation Available

exim4Debian

Fixed in:4.95-4CVE-2022-37451

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

2.55%probability of exploitation in 30 days

83rdpercentile

Elevated risk: more likely to be exploited than 83% of all known CVEs.

References

Patch2

Vendor Advisory2

Third-Party Advisory4

Other references2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.