TI-2025-40391 Aliases CVE-2025-65561 GHSA-hrmx-qxp4-vxmf

An issue was discovered in function LocalNode.Sess in free5GC 4.1.0 allowing attackers to…

HIGH 72CWE-20Published 2025-12-18 · Updated 2025-12-19

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

An issue was discovered in function LocalNode.Sess in free5GC 4.1.0 allowing attackers to cause a denial of service or other unspecified impacts via crafted header Local SEID to the PFCP Session Modification Request.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00439 38th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:free5gc:free5gc:4.1.0:::::::*	4.1.0	Vulnerable	free5gc

cpe:2.3:a:free5gc:free5gc:4.1.0:*:*:*:*:*:*:* Versions 4.1.0 Vulnerable ·free5gc

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-65561
2026-10-03 Alias added: GHSA-hrmx-qxp4-vxmf

References

Exploit 1

https://github.com/free5gc/free5gc/issues/730

Other 1

https://github.com/free5gc/go-upf/pull/80

TI-2026-32298 Incorrect authorization in free5gc CVSS 3.1CRITICAL 10.0
TI-2026-32297 free5GC: SMF UPI management interface lacks auth middleware; unauthenticated topology read/write requests reach handlers CVSS 3.1CRITICAL 10.0
TI-2026-32295 free5GC: NEF nnef-oam route group is unauthenticated; no-token requests reach the OAM handler CVSS 3.1CRITICAL 10.0
TI-2025-39412 free5gc v4.1.0 and before is vulnerable to Buffer Overflow. CVSS 3.1CRITICAL 9.8
TI-2026-32294 Missing authorization in free5gc CVSS 3.1CRITICAL 9.4
TI-2026-32283 Missing authorization in free5gc CVSS 3.1CRITICAL 9.4

See all 58 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences