How severe is CVE-2012-4507?

CVE-2012-4507 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2012-4507 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-4507?

CVE-2012-4507 affects Claws-mail. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-4507?

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

When was CVE-2012-4507 published?

CVE-2012-4507 was published on 2012-10-22 and last updated on 2026-06-16.

CVE-2012-4507

CVE-2012-4507 is a medium-severity vulnerability in Claws-mail with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Claws-mail
Published: 2012-10-22
Last modified: 2026-06-16

Description

The strchr function in procmime.c in Claws Mail (aka claws-mail) 3.8.1 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted email.

Frequently asked questions

What is CVE-2012-4507?: The strchr function in procmime.c in Claws Mail (aka claws-mail) 3.8.1 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted email.
How severe is CVE-2012-4507?: CVE-2012-4507 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2012-4507 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-4507?: CVE-2012-4507 affects Claws-mail. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-4507?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-4507 published?: CVE-2012-4507 was published on 2012-10-22 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:claws-mail:claws-mail:3.8.1:*:*:*:*:*:*:*

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