Is CVE-2026-37228 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-37228 being exploited in the wild.

How severe is CVE-2026-37228?

Informational severity, with a CVSS score of 7.5, published 1 June 2026.

Which products and versions are affected?

EURECOM FlexRIC v2.0.0 through commit 6a595d8b (2025-11-12).

Is there a fix for CVE-2026-37228?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-37228 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-37228?

Check whether you run EURECOM FlexRIC at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-37228: EURECOM FlexRIC reachable assertion in e2ap_recv_sctp_msg

CVE-2026-37228 · Severity: info · CVSS 7.5 · Published 2026-06-01

EURECOM FlexRIC, a controller used in Open RAN (O-RAN) cellular networks to manage radio access functions, contains a flaw in how it handles incoming network messages. An unauthenticated remote attacker can send a single oversized network packet to crash critical components, including the near-RT RIC, E2 Agent, or xApps. This results in a denial-of-service condition that can disrupt cellular network operations and management.

Technologies: EURECOM FlexRIC. Vendors: EURECOM.

Quick answers

Is CVE-2026-37228 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-37228 being exploited in the wild.
How severe is CVE-2026-37228?: Informational severity, with a CVSS score of 7.5, published 1 June 2026.
Which products and versions are affected?: EURECOM FlexRIC v2.0.0 through commit 6a595d8b (2025-11-12).
Is there a fix for CVE-2026-37228?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-37228 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-37228?: Check whether you run EURECOM FlexRIC at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A reachable assertion (CWE-617) exists in the `e2ap_recv_sctp_msg()` function within `src/lib/ep/e2ap_ep.c`. The function allocates a fixed 32KB receive buffer and performs an `assert(rc < len)` on the return value of `sctp_recvmsg()`. A remote, unauthenticated attacker can trigger this assertion by sending an SCTP message with a payload of 32,768 bytes or greater to ports 36421 or 36422. This causes a SIGABRT and process termination before any E2AP PDU validation occurs. In production builds where assertions are disabled (NDEBUG), this flaw may instead lead to a signed-to-unsigned integer overflow and potential out-of-bounds reads.

Affected products

EURECOM FlexRIC v2.0.0 through commit 6a595d8b (2025-11-12)

Timeline

2026-06-01: advisory: NVD and researcher advisory published

References

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