Infinite loop in dns_copy_qname

published 2025-06-24 16 mo ago modified 2026-10-13 26 d ago also EUVD-2025-19001

cvss: 8.2; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits: 0; none known

A denial-of-service issue in the dns implemenation could cause an infinite loop.

Patch / fix

links 1

github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-2qp5-c2… advisory

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 16 mo ago (2025-06-24)

Exploit prediction

0.57% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-2qp5-c2vq-g2ww referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.2	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

zephyrproject-rtos Zephyr

Classification

Weakness

CWE-835 Loop with Unreachable Exit Condition

References

github.com /zephyrproject-rtos/zephyr/security/advisories/GHSA-2qp5-c2vq-g2ww
exploit, patch, third-party-advisory

Sources

CVE List CVE-2025-2962
NVD CVE-2025-2962

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary