CVE-2026-37221 Null dereference in n/a
A remote unauthenticated attacker can crash the FlexRIC near-RT RIC by sending a forged subscription response with an unknown ID, causing a denial of service.
- 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-2026-37221?
CVE-2026-37221 is a high-severity vulnerability in n/a, published on 1 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
FlexRIC v2.0.0 crashes when receiving a RIC_SUBSCRIPTION_RESPONSE with an unknown ric_id that has no corresponding pending event. The near-RT RIC uses assert() to enforce the existence of a pending event during response processing. A remote unauthenticated attacker can send a forged RIC_SUBSCRIPTION_RESPONSE to the near-RT RIC (port 36421) to cause SIGABRT in Debug builds or NULL pointer dereference (SIGSEGV) in Release builds.
Weakness: CWE-617
Which versions are affected by CVE-2026-37221?
How do I fix CVE-2026-37221?
No fix has been published for CVE-2026-37221 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-37221 being exploited?
There is no known exploitation of CVE-2026-37221 in the wild and no public exploit code.
Sources
Also known as GHSA-46rx-wmhr-cj2m.