CVE-2026-16445

HIGH
MEDIUM Priority: 0.24 BB Relevance: 51/100
Published: 2026-07-21 Modified: 2026-10-27 First seen: 2026-10-29 Status: active

Attack Surface

Adjacent No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Adjacent
AC: High
PR: None
UI: None
S: Unchanged
C: High
I: High
A: High

Description

A flaw was found in dracut. A remote attacker on the adjacent network can exploit this vulnerability by providing specially crafted DHCP options, such as a malicious root-path, next-server, or bootfile name, to a system using dracut's NetworkManager-based initrd network module. These options are improperly handled and written into a temporary shell script without proper escaping, leading to command injection. This allows the attacker to achieve root code execution within the initramfs during system boot.

Weakness Classification (1)

Bug Bounty Relevance

51 / 100
✓ No authentication
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

3.22%
Raw Score 0.032220
Percentile 88.2%
Date 2026-10-29

EPSS Trend

2026-10-29
0.03222
2026-10-28
0.03222

Intelligence Sources

mitre ref →
nvd ref →