5.3
MEDIUM
CVSS 3.1
CVE-2026-42389
Reject more queries with invalid header values
Overview
Description
This fix provides extra hardening for the 5.4.x branch by doing extra validation of incoming answers from authoritative servers.
Details
INFO
Published Date :
June 25, 2026, 1:16 p.m.
Last Modified :
June 25, 2026, 1:16 p.m.
Remotely Exploit :
Yes !
Source :
OX
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 8ce71d90-2354-404b-a86e-bec2cc4e6981 | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
Harden the 5.4.x branch by validating incoming answers from authoritative servers.
- Apply hardening to the 5.4.x branch.
- Validate incoming answers from authoritative servers.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-42389 vulnerability anywhere in the article.
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.