CVE-2025-20173 — Uncaught Exception in Cisco IOS XE Software

CWE-248 — Uncaught ExceptionCWE-805 — Buffer Access with Incorrect Length Value4 documents4 sources
Severity
7.7HIGHNVD
EPSS
0.3%
top 46.57%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Cisco IOS XE SoftwareCisco IOSCisco IOS XE
Timeline
PublishedFeb 5

Description

A vulnerability in the SNMP subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause a DoS condition on an affected device. This vulnerability is due to improper error handling when parsing SNMP requests. An attacker could exploit this vulnerability by sending a crafted SNMP request to an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly, resulting in a DoS condition. This vulnerabili…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:HExploitability: 3.1 | Impact: 4.0

Affected Packages4 packages

▶CVEListV5cisco/cisco_ios_xe_software450 versions+449
▶CVEListV5cisco/ios961 versions+960
▶NVDcisco/ios961 versions+960
▶NVDcisco/ios_xe450 versions+449

🔴Vulnerability Details

2
GHSA
GHSA-9vgr-8wff-x9vq: A vulnerability in the SNMP subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause a DoS con↗2025-02-05
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CVEList
CVE-2025-20173: A vulnerability in the SNMP subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause a DoS con↗2025-02-05
▶

📋Vendor Advisories

1
Cisco
Cisco IOS, IOS XE, and IOS XR Software SNMP Denial of Service Vulnerabilities↗2025-02-05
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CVE-2025-20173 — Uncaught Exception in Cisco | cvebase