How severe is CVE-2023-4875?

CVE-2023-4875 has a CVSS 3.x base score of 2.2, rated low severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2023-4875 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4875?

CVE-2023-4875 primarily affects Mutt. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-4875?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-4875 published?

CVE-2023-4875 was published on 2023-09-09 and last updated on 2026-06-17.

CVE-2023-4875

CVE-2023-4875 is a low-severity vulnerability in Mutt with a CVSS 3.x base score of 2.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: Low (CVSS 3.x base score 2.2)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Mutt
Published: 2023-09-09
Last modified: 2026-06-17

Description

Null pointer dereference when composing from a specially crafted draft message in Mutt >1.5.2 <2.2.12

Frequently asked questions

What is CVE-2023-4875?: Null pointer dereference when composing from a specially crafted draft message in Mutt >1.5.2 <2.2.12
How severe is CVE-2023-4875?: CVE-2023-4875 has a CVSS 3.x base score of 2.2, rated low severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2023-4875 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-4875?: CVE-2023-4875 primarily affects Mutt. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-4875?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-4875 published?: CVE-2023-4875 was published on 2023-09-09 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:mutt:mutt:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*

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