PT-2026-45510 · Git+1 · Flexric

Jiadai Wang + 3 · CVE-2026-37231 · Published 2026-06-01 · Updated 2026-06-01

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions FlexRIC version 2.0.0

Description An issue exists where a uint16 t counter is used for xapp id assignment but is stored in uint32 t message fields. After more than 65,530 E42 SETUP REQUESTs, the 16-bit counter wraps around, resulting in duplicate xapp ids. This causes the iApp (port 36422) to crash when it attempts to register a duplicate ID within its internal data structure. A remote attacker can trigger this crash by repeatedly connecting and requesting new xApp registrations.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Integer Underflow

Weakness Enumeration

CWE-191

Related Identifiers

CVE-2026-37231

Affected Products

Flexric

References · 5

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/37xxx/CVE-2026-37231.json · Exploit
• 🔥 https://github.com/MinamiKotor1/oran-security-advisories-zhongnan-luo/blob/main/advisories/CVE-2026-37231.md · Exploit
• https://osv.dev/vulnerability/CVE-2026-37231 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-37231 · Security Note
• https://gitlab.eurecom.fr/mosaic5g/flexric · Note