CVE-2026-4736 Math Issue in No-Chicken/Echo-Mate
Improper handling of values in the Echo-Mate kernel netfilter modules may lead to undefined behavior or system instability.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-4736?
CVE-2026-4736 is a high-severity vulnerability in No-Chicken Echo-Mate, published on 24 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improper Handling of Values vulnerability in No-Chicken Echo-Mate (SDK/rv1106-sdk/sysdrv/source/kernel/include/net/netfilter modules). This vulnerability is associated with program files nf_tables.H, nft_byteorder.C, nft_meta.C.
This issue affects Echo-Mate: before V250329.
Weakness: CWE-229
Which versions are affected by CVE-2026-4736?
How do I fix CVE-2026-4736?
No fix has been published for CVE-2026-4736 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-4736 being exploited?
There is no known exploitation of CVE-2026-4736 in the wild and no public exploit code.
Sources
Also known as GHSA-j843-m256-pf25.