CVE-2012-1342

Name: CVE-2012-1342
Creator: NVD / NIST
Published: 2012-08-06T17:55:00.867+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.8/10EPSS 1.50%

Last modified Jun 16, 2026

CVE-2012-1342 is a medium-severity vulnerability rated 5.8/10 on the CVSS scale. Cisco Carrier Routing System (CRS) 3.9, 4.0, and 4.1 allows remote attackers to bypass ACL entries via fragmented packets, aka Bug ID CSCtj10975.. EPSS estimates a 1.50% chance of exploitation in the next 30 days.

Description

Cisco Carrier Routing System (CRS) 3.9, 4.0, and 4.1 allows remote attackers to bypass ACL entries via fragmented packets, aka Bug ID CSCtj10975.

Metrics

CVSS 3.1

5.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

EPSS Probability

1.50%

71.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

Affected Software

Vendor	Product	Versions
Cisco	Carrier Routing System	3.9.0
Cisco	Carrier Routing System	4.0.0
Cisco	Carrier Routing System	4.1.0

References

Timeline

Published: Aug 6, 2012
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2012-1342?

Cisco Carrier Routing System (CRS) 3.9, 4.0, and 4.1 allows remote attackers to bypass ACL entries via fragmented packets, aka Bug ID CSCtj10975.

How severe is CVE-2012-1342?

CVE-2012-1342 has a CVSS score of 5.8/10 (MEDIUM severity). The EPSS model estimates a 1.50% probability of exploitation in the next 30 days.

How do I fix CVE-2012-1342?

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-2012-1342?

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

Scan your code now

Source: NVD / NIST