CVE-2025-2962: zephyrproject-rtos Zephyr · Infinite Loop
Affects zephyrproject-rtos ZephyrSource CVE Database V5
Not known to be exploited · CVSS 8.2 High : upgrade to 4.2.0 or 3.7.2 soon.
Data as of 26 Oct 2026, 07:57 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 46% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 4.2.0, 3.7.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 24 Jun 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Upgrade zephyrproject-rtos Zephyr to 4.2.0 or 3.7.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| zephyrproject-rtosZephyr | Affected
| Fixed in
|
GitHubzephyrproject-rtos/zephyrpkg:github/zephyrproject-rtos/zephyrOther threats | Affected
| Fixed in– |
GitHubZephyrpkg:github/ZephyrOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
CVE-2025-2962 is a denial-of-service vulnerability in the Zephyr RTOS DNS implementation caused by an infinite loop with an unreachable exit condition. This flaw can cause the affected system to become unresponsive due to resource exhaustion. It has a high severity score of 8.2 and impacts availability only, without affecting confidentiality or integrity.