PT-2025-5717 · Cisco · Cisco Ios Xe+2
Leg00M
·
Published
2025-02-05
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Updated
2025-07-03
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CVE-2025-20172
CVSS v3.1
7.7
High
| 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 (affected versions not specified)
Cisco IOS XE Software (affected versions not specified)
Cisco IOS XR 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. The vulnerability 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:
For Cisco IOS and IOS XE Software, update to a version that includes the fix for this issue.
For Cisco IOS XR Software, update to a version that includes the fix for this issue.
As a temporary workaround, consider restricting access to the SNMP subsystem until a patch is available.
Avoid using the
SNMP protocol with default or easily guessable community strings until the issue is resolved.
Restrict access to the affected devices to minimize the risk of exploitation.
At the moment, there is no information about a newer version that contains a fix for this vulnerability.DoS
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Related Identifiers
Affected Products
Cisco Ios
Cisco Ios Xe
Cisco Ios Xr