CVE-2026-44634 Stack buffer overflows in SimpleBLE
Stack buffer overflows in SimpleBLE allow remote attackers to execute arbitrary code or cause denial of service via crafted BLE advertisements.
- 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-2026-44634?
CVE-2026-44634 is a high-severity memory corruption vulnerability in simpleble, published on 9 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
SimpleBLE is a cross-platform library and bindings for Bluetooth Low Energy (BLE). Prior to version 0.14.0, there are multiple stack-based buffer overflow vulnerabilities in SimpleBLE. There is a stack overflow vulnerability in the dongl backend’s Protocol::simpleble_write function (local, caller-controlled input). A stack overflow vulnerability when processing manufacturer-specific data in BLE advertisements (remote, no pairing or connection required). Lastly, a stack overflow vulnerability when processing service data in BLE advertisements (remote, no pairing or connection required). This issue has been patched in version 0.14.0.
Which versions are affected by CVE-2026-44634?
How do I fix CVE-2026-44634?
No fix has been published for CVE-2026-44634 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-44634 being exploited?
There is no known exploitation of CVE-2026-44634 in the wild and no public exploit code.
Sources
Also known as GHSA-8h89-q8m2-c8fp.