CVE-2026-37231 Integer overflow in n/a
A remote attacker can cause a denial of service in FlexRIC by triggering an integer overflow in the xapp_id counter, leading to duplicate IDs and a crash.
- 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-2026-37231?
CVE-2026-37231 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 uses a uint16_t counter for xapp_id assignment but stores the value in uint32_t message fields. After 65,530+ E42_SETUP_REQUESTs, the 16-bit counter wraps around and produces duplicate xapp_ids. The iApp (port 36422) crashes when attempting to register a duplicate ID in its internal data structure. A remote attacker can trigger this by repeatedly connecting and requesting new xApp registrations.
Weakness: CWE-191
Which versions are affected by CVE-2026-37231?
It affects 1 product.
Products include Mosaic5g Flexric.
How do I fix CVE-2026-37231?
No fix has been published for CVE-2026-37231 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-37231 being exploited?
There is no known exploitation of CVE-2026-37231 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-vm9w-mqxm-485q.