CVE-2012-4617

Name: CVE-2012-4617
Creator: NVD / NIST
Published: 2012-09-27T00:55:00.903+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.32%

Last modified Jun 16, 2026

CVE-2012-4617 is a vulnerability of currently unknown severity. The BGP implementation in Cisco IOS 15.2, IOS XE 3.5.xS before 3.5.2S, and IOS XR 4.1.0 through 4.2.2 allows remote attackers to cause a denial of service (multiple connection resets) by leveraging a peer relationship and sending a malformed attribute, aka Bug IDs CSCtt35379, CSCty58300, CSCtz63248, and CSCtz62914.. EPSS estimates a 2.32% chance of exploitation in the next 30 days.

Description

The BGP implementation in Cisco IOS 15.2, IOS XE 3.5.xS before 3.5.2S, and IOS XR 4.1.0 through 4.2.2 allows remote attackers to cause a denial of service (multiple connection resets) by leveraging a peer relationship and sending a malformed attribute, aka Bug IDs CSCtt35379, CSCty58300, CSCtz63248, and CSCtz62914.

Metrics

EPSS Probability

2.32%

81.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Cisco	Ios	15.2
Cisco	Ios Xe	3.5.0s
Cisco	Ios Xe	3.5.1s
Cisco	Ios Xr	4.1
Cisco	Ios Xr	4.1.1
Cisco	Ios Xr	4.1.2
Cisco	Ios Xr	4.2.0
Cisco	Ios Xr	4.2.1
Cisco	Ios Xr	4.2.2

References

Timeline

Published: Sep 27, 2012
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2012-4617?

How severe is CVE-2012-4617?

Severity scoring for CVE-2012-4617 is pending analysis. The EPSS model estimates a 2.32% probability of exploitation in the next 30 days.

How do I fix CVE-2012-4617?

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-2012-4617?

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

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Source: NVD / NIST