CVE-2025-20149

MEDIUM

Cisco IOS Software - Buffer Overflow

Title source: llm
STIX 2.1

Description

A vulnerability in the CLI of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, local attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to a buffer overflow. An attacker with a low-privileged account could exploit this vulnerability by using crafted commands at the CLI prompt. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.

Scores

CVSS v3 6.5
EPSS 0.0003
EPSS Percentile 9.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-120
Status published
Products (50)
Cisco/Cisco IOS XE Software 16.1.1
Cisco/Cisco IOS XE Software 16.1.2
Cisco/Cisco IOS XE Software 16.1.3
Cisco/Cisco IOS XE Software 16.10.1
Cisco/Cisco IOS XE Software 16.10.1a
Cisco/Cisco IOS XE Software 16.10.1b
Cisco/Cisco IOS XE Software 16.10.1c
Cisco/Cisco IOS XE Software 16.10.1d
Cisco/Cisco IOS XE Software 16.10.1e
Cisco/Cisco IOS XE Software 16.10.1f
... and 40 more
Published Sep 24, 2025
Tracked Since Feb 18, 2026