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CVE-2025-20352

CWE-121

Critical

90.6

RPS

Description

A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software and Cisco IOS XE Software could allow the following: An authenticated, remote attacker with low privileges could cause a denial of service (DoS) condition on an affected device that is running Cisco IOS Software or Cisco IOS XE Software. To cause the DoS, the attacker must have the SNMPv2c or earlier read-only community string or valid SNMPv3 user credentials. An authenticated, remote attacker with high privileges could execute code as the root user on an affected device that is running Cisco IOS XE Software. To execute code as the root user, the attacker must have the SNMPv1 or v2c read-only community string or valid SNMPv3 user credentials and administrative or privilege 15 credentials on the affected device. An attacker could exploit this vulnerability by sending a crafted SNMP packet to an affected device over IPv4 or IPv6 networks. This vulnerability is due to a stack overflow condition in the SNMP subsystem of the affected software. A successful exploit could allow a low-privileged attacker to cause the affected system to reload, resulting in a DoS condition, or al…

Source: NVD

Signals

CVSS
7.7
High · v3.1
EPSS
39.44%
Probability of exploitation in the next 30 days (FIRST)
CISA KEV
In CISA KEV since Sept 2025
Fix commit
No known fix commit
Sources: MoreFixes, FreshFixes
Weakness
CWE-121
Published
24 Sept 2025
Last modified 26 Sept 2026

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Data as of 7 Oct 2026, 05:16 UK time

CVE-2025-20352 · RPS 90.6 · DevSecure Intelligence