Medium 5.3Published Feb 15, 2026

CVE-2026-2522Open5GS MME esm-build.c memory corruption

Updated under an hour ago (Oct 26, 2026, 1:00 PM ET)

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It affects n/a Open5GS. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for n/a Open5GS

Exploited in the last 30 days

A security vulnerability has been detected in Open5GS up to 2.7.6. Impacted is an unknown function of the file /src/mme/esm-build.c of the component MME. The manipulation leads to memory corruption. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

CVSS: 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
Weakness (CWE): CWE-119
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Analyzed
Record last updated: Feb 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

n/a Open5GS open5gs:open5gs	2.7.0; 2.7.1; 2.7.2; 2.7.3; 2.7.4; 2.7.5; 2.7.6	CNA record
open5gs open5gs open5gs:open5gs	through 2.7.6	NVD

References

References

https://vuldb.com/?id.346110	vdb-entry, technical-description, third-party-advisory
https://vuldb.com/?ctiid.346110	signature, permissions-required, vdb-entry
https://vuldb.com/?submit.738336	third-party-advisory, vdb-entry
https://github.com/open5gs/open5gs/issues/4283	issue-tracking, exploit, vendor-advisory
https://github.com/open5gs/open5gs/issues/4283#issue-3807916595	exploit, issue-tracking, vendor-advisory
https://github.com/open5gs/open5gs/	product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.