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CVE-2025-20149

MEDIUMCVSS 6.5/10EPSS 0.12%

Last modified

CVE-2025-20149 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.12% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
6.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

EPSS Probability
0.12%

1.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoIos15.0\(1\)ex
CiscoIos15.0\(2\)ea
CiscoIos15.0\(2\)ea1
CiscoIos15.0\(2\)ej
CiscoIos15.0\(2\)ej1
CiscoIos15.0\(2\)ek
CiscoIos15.0\(2\)ek1
CiscoIos15.0\(2\)ex
CiscoIos15.0\(2\)ex1
CiscoIos15.0\(2\)ex2
CiscoIos15.0\(2\)ex3
CiscoIos15.0\(2\)ex4
CiscoIos15.0\(2\)ex5
CiscoIos15.0\(2\)ex8
CiscoIos15.0\(2\)ex10
CiscoIos15.0\(2\)ex11
CiscoIos15.0\(2\)ex12
CiscoIos15.0\(2\)ex13
CiscoIos15.0\(2\)ey
CiscoIos15.0\(2\)ey1
CiscoIos15.0\(2\)ey2
CiscoIos15.0\(2\)ey3
CiscoIos15.0\(2\)ez
CiscoIos15.0\(2\)se
CiscoIos15.0\(2\)se1
CiscoIos15.0\(2\)se2
CiscoIos15.0\(2\)se3
CiscoIos15.0\(2\)se4
CiscoIos15.0\(2\)se5
CiscoIos15.0\(2\)se6
CiscoIos15.0\(2\)se7
CiscoIos15.0\(2\)se8
CiscoIos15.0\(2\)se9
CiscoIos15.0\(2\)se10
CiscoIos15.0\(2\)se10a
CiscoIos15.0\(2\)se11
CiscoIos15.0\(2\)se12
CiscoIos15.0\(2\)se13
CiscoIos15.0\(2a\)ex5
CiscoIos15.1\(1\)sg
CiscoIos15.1\(1\)sg1
CiscoIos15.1\(1\)sg2
CiscoIos15.1\(1\)sy
CiscoIos15.1\(1\)sy1
CiscoIos15.1\(1\)sy2
CiscoIos15.1\(1\)sy3
CiscoIos15.1\(1\)sy4
CiscoIos15.1\(1\)sy5
CiscoIos15.1\(1\)sy6
CiscoIos15.1\(2\)s

Showing 50 of 1159 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2025-20149?
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.
How severe is CVE-2025-20149?
CVE-2025-20149 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.12% probability of exploitation in the next 30 days.
How do I fix CVE-2025-20149?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST