Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N L N N U N N H 7.5 .0049 40.1 —
AFFECTED Product Versions Fixed n/a n/a – —
TIMELINE Apr 6 Reserved by mitre Jun 1 EXPLOIT PUBLISHED — CVE-2026-37231. Public exploit reference added. Jun 1 Published (CNA: mitre)
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.
| Date | Event | Detail |
|---|---|---|
| April 6, 2026 | Reserved | Reserved by mitre |
| June 1, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-37231. Public exploit reference added. |
| June 1, 2026 | Published | Published (CNA: mitre) |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| n/a | n/a | — | n/a | — |
Authoritative record: CVE-2026-37231 at cve.org
Weaknesses: CWE-191
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-37231 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.