CVE-2026-102760 Use after free in NetX Duo
A use-after-free in NetX Duo TLS allows attackers to corrupt memory or crash the system when key clearing is enabled.
- 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-2026-102760?
CVE-2026-102760 is a high-severity use after free vulnerability in Eclipse Foundation NetX Duo, published on 29 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
When NetX Secure is built with `NX_SECURE_KEY_CLEAR`, every TLS record sent on an active session is wiped after it has been handed to TCP. By then the TCP layer owns the packet chain and may already have released it to the packet pool. The wipe therefore writes zeros into packets that are free or in use by another thread, and when a reused packet's pointers no longer describe the old data, the length of the wipe underflows and it runs past the end of the packet pool.
Weakness: CWE-416
Which versions are affected by CVE-2026-102760?
How do I fix CVE-2026-102760?
No fix has been published for CVE-2026-102760 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-102760 being exploited?
There is no known exploitation of CVE-2026-102760 in the wild and no public exploit code.
Sources
Also known as GHSA-8w5x-ff58-2fr2, GHSA-mmmp-6qxx-j473.