CVE-2015-6432

Name: CVE-2015-6432
Creator: NVD / NIST
Published: 2016-01-05T02:59:05.427+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.76%

Last modified Jun 17, 2026

CVE-2015-6432 is a vulnerability of currently unknown severity. Cisco IOS XR 4.2.0, 4.3.0, 5.0.0, 5.1.0, 5.2.0, 5.2.2, 5.2.4, 5.3.0, and 5.3.2 does not properly restrict the number of Path Computation Elements (PCEs) for OSPF LSA opaque area updates, which allows remote attackers to cause a denial of service (device reload) via a crafted update, aka Bug ID CSCuw83486.. EPSS estimates a 1.76% chance of exploitation in the next 30 days.

Description

Cisco IOS XR 4.2.0, 4.3.0, 5.0.0, 5.1.0, 5.2.0, 5.2.2, 5.2.4, 5.3.0, and 5.3.2 does not properly restrict the number of Path Computation Elements (PCEs) for OSPF LSA opaque area updates, which allows remote attackers to cause a denial of service (device reload) via a crafted update, aka Bug ID CSCuw83486.

Metrics

EPSS Probability

1.76%

75.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-399

Affected Software

Vendor	Product	Versions
Cisco	Ios Xr	4.2.0
Cisco	Ios Xr	4.3.0
Cisco	Ios Xr	5.0.0
Cisco	Ios Xr	5.1.0
Cisco	Ios Xr	5.2.0
Cisco	Ios Xr	5.2.2
Cisco	Ios Xr	5.2.4
Cisco	Ios Xr	5.3.0
Cisco	Ios Xr	5.3.2

References

Timeline

Published: Jan 5, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-6432?

How severe is CVE-2015-6432?

Severity scoring for CVE-2015-6432 is pending analysis. The EPSS model estimates a 1.76% probability of exploitation in the next 30 days.

How do I fix CVE-2015-6432?

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-2015-6432?

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

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Source: NVD / NIST