How severe is CVE-2012-3501?

CVE-2012-3501 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2012-3501 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-3501?

CVE-2012-3501 primarily affects Darold Squidclamav. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-3501?

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

When was CVE-2012-3501 published?

CVE-2012-3501 was published on 2012-08-25 and last updated on 2026-06-16.

CVE-2012-3501

CVE-2012-3501 is a medium-severity vulnerability in Darold Squidclamav 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. The underlying weakness is classified as CWE-119.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Darold Squidclamav
Published: 2012-08-25
Last modified: 2026-06-16

Description

The squidclamav_check_preview_handler function in squidclamav.c in SquidClamav 5.x before 5.8 and 6.x before 6.7 passes an unescaped URL to a system command call, which allows remote attackers to cause a denial of service (daemon crash) via a URL with certain characters, as demonstrated using %0D or %0A.

Frequently asked questions

What is CVE-2012-3501?: The squidclamav_check_preview_handler function in squidclamav.c in SquidClamav 5.x before 5.8 and 6.x before 6.7 passes an unescaped URL to a system command call, which allows remote attackers to cause a denial of service (daemon crash) via a URL with certain characters, as demonstrated using %0D or %0A.
How severe is CVE-2012-3501?: CVE-2012-3501 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2012-3501 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-3501?: CVE-2012-3501 primarily affects Darold Squidclamav. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-3501?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-3501 published?: CVE-2012-3501 was published on 2012-08-25 and last updated on 2026-06-16.

References

Affected products (15)

cpe:2.3:a:darold:squidclamav:5.0:*:*:*:*:*:*:*
cpe:2.3:a:darold:squidclamav:5.1:*:*:*:*:*:*:*
cpe:2.3:a:darold:squidclamav:5.2:*:*:*:*:*:*:*
cpe:2.3:a:darold:squidclamav:5.3:*:*:*:*:*:*:*
cpe:2.3:a:darold:squidclamav:5.4:*:*:*:*:*:*:*
cpe:2.3:a:darold:squidclamav:5.5:*:*:*:*:*:*:*
cpe:2.3:a:darold:squidclamav:5.6:*:*:*:*:*:*:*
cpe:2.3:a:darold:squidclamav:5.7:*:*:*:*:*:*:*
cpe:2.3:a:darold:squidclamav:6.0:*:*:*:*:*:*:*
cpe:2.3:a:darold:squidclamav:6.1:*:*:*:*:*:*:*
cpe:2.3:a:darold:squidclamav:6.2:*:*:*:*:*:*:*
cpe:2.3:a:darold:squidclamav:6.3:*:*:*:*:*:*:*
cpe:2.3:a:darold:squidclamav:6.4:*:*:*:*:*:*:*
cpe:2.3:a:darold:squidclamav:6.5:*:*:*:*:*:*:*
cpe:2.3:a:darold:squidclamav:6.6:*:*:*:*:*:*:*

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