CVE-2026-82587Open5GS AMF namf-handler.c amf_namf_comm_decode_ue_mm_context_list memory corruption
Updated under an hour ago ()
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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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A vulnerability was determined in Open5GS up to 2.7.7. This vulnerability affects the function amf_namf_comm_decode_ue_mm_context_list of the file src/amf/namf-handler.c of the component AMF. This manipulation of the argument ueContext.mmContextList[*].allowedNssai causes memory corruption. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 2.8.0 is able to resolve this issue. Patch name: abf8a836564b966b5141110fc25ed413c4f17522. It is recommended to upgrade the affected component.
- CVSS
- 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
- 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
- Deferred
- Record last updated
- Aug 31, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
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; 2.7.7; and 1 more ranges | CNA record |
References
- https://vuldb.com/vuln/397082vdb-entry, technical-description
- https://vuldb.com/vuln/397082/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-82587third-party-advisory
- https://vuldb.com/submit/891890third-party-advisory
- https://github.com/open5gs/open5gs/issues/4398exploit, issue-tracking
- https://github.com/open5gs/open5gs/commit/abf8a836564b966b5141110fc25ed413c4f17522patch
- https://github.com/open5gs/open5gs/releases/tag/v2.8.0patch
- 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.