What is CVE-2023-20236?

CVE-2023-20236 is a medium-severity vulnerability in Cisco 8201, classified under Improper Verification of Cryptographic Signature. CVSS score: 6.7/10. Published 2023-09-13.

How severe is CVE-2023-20236?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Vulnerability in Cisco 8201

CVE-2023-20236

A vulnerability in the iPXE boot function of Cisco IOS XR software could allow an authenticated, local attacker to install an unverified software image on an affected device. This vulnerability is due to insufficient image verification…

EPSS: 0.001 (0.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Cisco 8201
Cisco 8202
Cisco 8208
Cisco 8212
Cisco 8218
Cisco 8804
Cisco 8808
Cisco 8812
Cisco 8818
Cisco 8831

Weakness classification (CWE)

CWE-347 — Improper Verification of Cryptographic Signature
CWE-345 — Insufficient Verification of Data Authenticity

References

psirt@cisco.com (Vendor Advisory)

Frequently asked questions

What is CVE-2023-20236?: CVE-2023-20236 is a medium-severity vulnerability in Cisco 8201, classified under Improper Verification of Cryptographic Signature. CVSS score: 6.7/10. Published 2023-09-13.
How severe is CVE-2023-20236?: Medium severity. CVSS v3 base score is 6.7 out of 10.