CVE-2017-3803

MEDIUM

Cisco IOS Software - DoS

Title source: llm

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.

References (3)

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/95632

[Mitigation, Vendor Advisory] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170118-catalyst

[Third Party Advisory, VDB Entry] http://www.securitytracker.com/id/1037657

Scores

CVSS v3 4.7

EPSS 0.0017

EPSS Percentile 38.2%

Attack Vector ADJACENT_NETWORK

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

Classification

CWE

CWE-772

Status published

Affected Products (3)

cisco/ios

n/a/Cisco IOS < Cisco IOS

Timeline

Published Jan 26, 2017

Tracked Since Feb 18, 2026