CVE-2023-20236CWE-347

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…

Medium · published September 13, 2023

CVSS v3.1
6.7
EPSS
0%
Percentile
0.8
In the wild
Unconfirmed
What it is

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. An attacker could exploit this vulnerability by manipulating the boot parameters for image verification during the iPXE boot process on an affected device. A successful exploit could allow the attacker to boot an unverified software image on the affected device.

The record
Technical detail
CVSS v3.1
6.7 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00100 · 0.8th percentile
Weakness
CWE-347 · Improper Verification of Cryptographic Signature
Published
2023-09-13T16:39Z
EPSS history
Timeline
  • 13 SEP 16:39Z
    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…
    cvelistv5