CVE-2017-3803

Name: CVE-2017-3803
Creator: NVD / NIST
Published: 2017-01-26T07:59:00.577+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.56%

Last modified Jun 17, 2026

CVE-2017-3803 is a vulnerability of currently unknown severity. A vulnerability in the Cisco IOS Software forwarding queue of Cisco 2960X and 3750X switches could allow an unauthenticated, adjacent attacker to cause a memory leak in the software forwarding queue that would eventually lead to a partial denial of service (DoS) condition. More Information: CSCva72252. EPSS estimates a 0.56% chance of exploitation in the next 30 days.

Description

A vulnerability in the Cisco IOS Software forwarding queue of Cisco 2960X and 3750X switches could allow an unauthenticated, adjacent attacker to cause a memory leak in the software forwarding queue that would eventually lead to a partial denial of service (DoS) condition. More Information: CSCva72252. Known Affected Releases: 15.2(2)E3 15.2(4)E1. Known Fixed Releases: 15.2(2)E6 15.2(4)E3 15.2(5)E1 15.2(5.3.28i)E1 15.2(6.0.49i)E 3.9(1)E.

Metrics

EPSS Probability

0.56%

42.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-772

Affected Software

Vendor	Product	Versions
Cisco	Ios	15.2\(2\)e3
Cisco	Ios	15.2\(4\)e1

References

http://www.securityfocus.com/bid/95632Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037657
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170118-catalystMitigation, Vendor Advisory
http://www.securityfocus.com/bid/95632Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037657
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170118-catalystMitigation, Vendor Advisory

Timeline

Published: Jan 26, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-3803?

How severe is CVE-2017-3803?

Severity scoring for CVE-2017-3803 is pending analysis. The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.

How do I fix CVE-2017-3803?

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-2017-3803?

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

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Source: NVD / NIST