EN

CVE-2024-20265

Medium
5.9
0.05.010.0
Year
2024
Published
Mar 27, 2024
Known Affected Devices
0
CVSS Score
5.9

What is CVE-2024-20265?

A vulnerability in the boot process of Cisco Access Point (AP) Software could allow an unauthenticated, physical attacker to bypass the Cisco Secure Boot functionality and load a software image that has been tampered with on an affected device. This vulnerability exists because unnecessary commands are available during boot time at the physical console. An attacker could exploit this vulnerability by interrupting the boot process and executing specific commands to bypass the Cisco Secure Boot validation checks and load an image that has been tampered with. This image would have been previously downloaded onto the targeted device. A successful exploit could allow the attacker to load the image once. The Cisco Secure Boot functionality is not permanently compromised.

CVSS Vector Breakdown

CVSS 3.1
CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
AV
Attack Vector
Physical

Requires physical presence — attacker must physically touch the device (e.g. USB port).

AC
Attack Complexity
Low

No special conditions required. Exploit can be performed reliably and repeatedly.

PR
Privileges Required
Low

Basic user account required (e.g. standard login without admin rights).

UI
User Interaction
None

No user interaction required. Exploit runs without any victim action.

S
Scope
Unchanged

Exploiting the vulnerability only affects the vulnerable component itself.

C
Confidentiality Impact
High

Complete loss of confidentiality. All data on the component may be exposed.

I
Integrity Impact
High

Complete loss of integrity. Attacker can modify any file or data on the component.

A
Availability Impact
None

No availability impact. Service remains fully operational.

Known Affected Devices

Cisco Cisco ISR 4451 Cisco Cisco ISR 4461 Cisco Cisco ISR 931 Cisco Cisco ISR 951 Cisco Cisco ASR 1001-X Cisco Cisco ASR 1001-HX Cisco Cisco ASR 1002-X Cisco Cisco ASR 1002-HX Cisco Cisco ASR 1004 Cisco Cisco ASR 1009-X Cisco Cisco ASR 9001 Cisco Cisco ASR 9010 Cisco Cisco ASR 9901 Cisco Cisco ASR 9910 Cisco Cisco Catalyst 2960-24TC-L Cisco Cisco Catalyst 2960S-48TS-L Cisco Cisco Catalyst 2960X-24TS-L Cisco Cisco Catalyst 2960X-48TS-L Cisco Cisco Catalyst 2960X-24PSQ-L Cisco Cisco Catalyst 2960X-48FPS-L Cisco Cisco Catalyst 2960XR-24TS-I Cisco Cisco Catalyst 3650-48TS-L Cisco Cisco Catalyst 3750X-24T-S Cisco Cisco Catalyst 3750X-24P-S Cisco Cisco Catalyst 9200-24T Cisco Cisco Catalyst 9200-48P Cisco Cisco Catalyst 9200L-24P-4X Cisco Cisco Catalyst 9200L-48P-4X Cisco Cisco Catalyst 9300-24P Cisco Cisco Catalyst 9300-24T Cisco Cisco Catalyst 9300-24UX Cisco Cisco Catalyst 9300-48P Cisco Cisco Catalyst 9300-48T Cisco Cisco Catalyst 9300-48U Cisco Cisco Catalyst 9300L-24P-4G Cisco Cisco Catalyst 9300L-48T-4G Cisco Cisco Catalyst 9500-32C Cisco Cisco Catalyst 9600-40YC Cisco Cisco Nexus 7010 Cisco Cisco Nexus 9504 Cisco Cisco Nexus 9508 Cisco Cisco ASA 5512-X Cisco Cisco Firepower 1150 Cisco Cisco Firepower 2110 Cisco Cisco Firepower 2120 Cisco Cisco Firepower 4110 Cisco Cisco Catalyst 9120AXI Cisco Cisco Catalyst 9120AXE Cisco Cisco Catalyst 9800-L-C Cisco Cisco Catalyst 9800-CL

FAQ

How severe is CVE-2024-20265?

CVE-2024-20265 has a CVSS score of 5.9/10, rated as Medium. Review the affected products list and apply vendor patches.

What does the CVSS score mean for CVE-2024-20265?

CVSS (Common Vulnerability Scoring System) rates vulnerability severity from 0.0 to 10.0. CVE-2024-20265 scores 5.9/10 (Medium). Scores 9.0–10.0 are Critical, 7.0–8.9 are High, 4.0–6.9 are Medium, and below 4.0 are Low.

Which devices are affected by CVE-2024-20265?

The list of devices confirmed to be affected by CVE-2024-20265 is shown in the "Affected Devices" section above. Check your firmware version against the vendor security advisory and apply the latest patch.

How do I fix or mitigate CVE-2024-20265?

Apply the latest firmware or software update from the vendor. Check the References section above for official advisories and patch notes. If no patch is available, consider disabling the affected feature or isolating the device from untrusted networks.