How severe is CVE-2012-3924?

CVE-2012-3924 has a CVSS 2.0 base score of 3.5, rated low severity.

Is CVE-2012-3924 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-3924?

CVE-2012-3924 primarily affects Cisco Ios. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-3924?

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

When was CVE-2012-3924 published?

CVE-2012-3924 was published on 2012-09-16 and last updated on 2026-06-16.

CVE-2012-3924

CVE-2012-3924 is a low-severity vulnerability in Cisco Ios with a CVSS 2.0 base score of 3.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Low (CVSS 2.0 base score 3.5)
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Cisco Ios
Published: 2012-09-16
Last modified: 2026-06-16

Description

The SSLVPN implementation in Cisco IOS 15.1 and 15.2, when DTLS is enabled, does not properly handle certain outbound ACL configurations, which allows remote authenticated users to cause a denial of service (device crash) via a session involving a PPP over ATM (PPPoA) interface, aka Bug ID CSCty97961.

Frequently asked questions

What is CVE-2012-3924?: The SSLVPN implementation in Cisco IOS 15.1 and 15.2, when DTLS is enabled, does not properly handle certain outbound ACL configurations, which allows remote authenticated users to cause a denial of service (device crash) via a session involving a PPP over ATM (PPPoA) interface, aka Bug ID CSCty97961.
How severe is CVE-2012-3924?: CVE-2012-3924 has a CVSS 2.0 base score of 3.5, rated low severity.
Is CVE-2012-3924 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-3924?: CVE-2012-3924 primarily affects Cisco Ios. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-3924?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-3924 published?: CVE-2012-3924 was published on 2012-09-16 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2:*:*:*:*:*:*:*

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