CVE-2012-3923

Name: CVE-2012-3923
Creator: NVD / NIST
Published: 2012-09-16T10:34:51.393+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.86%

Last modified Jun 16, 2026

CVE-2012-3923 is a vulnerability of currently unknown severity. The SSLVPN implementation in Cisco IOS 12.4, 15.0, 15.1, and 15.2, when DTLS is not 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 CSCte41827.. EPSS estimates a 0.86% chance of exploitation in the next 30 days.

Description

The SSLVPN implementation in Cisco IOS 12.4, 15.0, 15.1, and 15.2, when DTLS is not 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 CSCte41827.

Metrics

EPSS Probability

0.86%

53.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Cisco	Ios	12.4
Cisco	Ios	15.0
Cisco	Ios	15.1
Cisco	Ios	15.2

References

Timeline

Published: Sep 16, 2012
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2012-3923?

How severe is CVE-2012-3923?

Severity scoring for CVE-2012-3923 is pending analysis. The EPSS model estimates a 0.86% probability of exploitation in the next 30 days.

How do I fix CVE-2012-3923?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2012-3923?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST