A flaw has been found in Free5GC SMF up to 4.1.0. Affected is the function HandlePfcpAssociationReleaseRequest of the file internal/pfcp/handler/handler.go of the component PFCP UDP Endpoint. Executing a manipulation can lead to null pointer dereference. The attack may be launched remotely. The exploit has been published and may be used. A patch should be applied to remediate this issue.
CVE-2026-1682
Score 5.3 from GitHub Security Advisory published 2026-01-30. NVD baseline CVSS 5.3; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.3
- EG Score
- 5.3(medium)
- EPSS
- 47.7%
- KEV
- Not listed
Published
January 30, 2026
Last Modified
February 23, 2026
References (8)
- cna@vuldbhttps://github.com/free5gc/free5gc/issues/794
- cna@vuldbhttps://github.com/free5gc/free5gc/issues/794#issue-3811888505
- cna@vuldbhttps://github.com/free5gc/free5gc/issues/794#issuecomment-3761063382
- cna@vuldbhttps://github.com/free5gc/smf/
- cna@vuldbhttps://github.com/free5gc/smf/pull/188
- cna@vuldbhttps://vuldb.com/?ctiid.343475
- cna@vuldbhttps://vuldb.com/?id.343475
- cna@vuldbhttps://vuldb.com/?submit.739508
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 11× in last 7d / 40× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-16 17:03 UTCEPSS rescore
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- 2026-05-29 15:00 UTCEG score recompute
- 2026-05-29 15:00 UTCGHSA enrichment
- 2026-05-29 13:44 UTCEPSS rescore
- 2026-05-29 13:44 UTCEPSS rescore
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Frequently asked(5)
What is CVE-2026-1682?
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Dependency Blast Radius
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