CVE-2025-2962 Infinite loop in dns_copy_qname
An attacker can cause a denial of service via an infinite loop in the DNS implementation of the Zephyr RTOS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-2962?
CVE-2025-2962 is a high-severity denial of service vulnerability in Zephyrproject Zephyr, published on 24 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A denial-of-service issue in the dns implemenation could cause an infinite loop.
Weakness: CWE-835
Which versions are affected by CVE-2025-2962?
It affects 1 product.
Products include Zephyrproject Zephyr.
How do I fix CVE-2025-2962?
No fix has been published for CVE-2025-2962 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-2962 being exploited?
There is no known exploitation of CVE-2025-2962 in the wild and no public exploit code.
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- CVE-2022-3806 Bluetooth HCI Error Handling Double Free
- CVE-2017-14199 Memory corruption in getaddrinfo
- CVE-2018-1000800 Null dereference in n/a
- CVE-2021-3329 DOS: Incorrect handling of the initial HCI ACL_MTU handshake packet leads to crash of bluetooth host layer
Sources
Also known as GHSA-2qp5-c2vq-g2ww.