PT-2025-5718 · Cisco · Cisco Ios Xe+1

Leg00M · Published 2025-02-05 · Updated 2025-07-03 · CVE-2025-20173

Positive Technologies (AI Summary)

CVSS v3.1

7.7

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Cisco IOS Software and Cisco IOS XE Software (affected versions not specified)

Description: A vulnerability in the SNMP subsystem could allow an authenticated, remote attacker to cause a DoS condition on an affected device. This is due to improper error handling when parsing SNMP requests. An attacker could exploit this by sending a crafted SNMP request. A successful exploit could allow the attacker to cause the device to reload unexpectedly, resulting in a DoS condition. This affects SNMP versions 1, 2c, and 3. To exploit through SNMP v2c or earlier, the attacker must know a valid read-write or read-only SNMP community string. To exploit through SNMP v3, the attacker must have valid SNMP user credentials.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

RCE

Weakness Enumeration

CWE-805

CWE-248

Related Identifiers

BDU:2025-01865

CVE-2025-20173

ZDI-25-279

Affected Products

Cisco Ios

Cisco Ios Xe

References · 9

• https://osv.dev/vulnerability/CVE-2025-20173 · Vendor Advisory
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snmp-dos-sdxnSUcW · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-25-279 · Security Note
• https://bdu.fstec.ru/vul/2025-01865 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-20173 · Security Note
• https://twitter.com/CVEnew/status/1887182693143621990 · Twitter Post
• https://t.me/cvedetector/17304 · Telegram Post
• https://t.me/cvenotify/127623 · Telegram Post
• https://twitter.com/TheZDIBugs/status/1918042353517908082 · Twitter Post