CVE-2025-65562

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Source
https://cve.org/CVERecord?id=CVE-2025-65562
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-65562.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-65562
Published
2025-12-18T19:16:33.747Z
Modified
2026-03-14T12:45:44.127669Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

The free5GC UPF suffers from a lack of bounds checking on the SEID when processing PFCP Session Deletion Requests. An unauthenticated remote attacker can send a request with a very large SEID (e.g., 0xFFFFFFFFFFFFFFFF) that causes an integer conversion/underflow in LocalNode.DeleteSess() / LocalNode.Sess() when a uint64 SEID is converted to int and used in index arithmetic. This leads to a negative index into n.sess and a Go runtime panic, resulting in a denial of service (UPF crash). The issue has been reproduced on free5GC v4.1.0 with crashes observed in the session lookup/deletion path in internal/pfcp/node.go; other versions may also be affected. No authentication is required.

References

Affected packages

Git / github.com/free5gc/free5gc

Affected ranges

Type
GIT
Repo
https://github.com/free5gc/free5gc
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
de6bdb7a0d5963266c893cca59c86f55df348f57
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.1.0"
        }
    ]
}

Affected versions

v3.*
v3.0.1
v3.0.2
v3.0.4
v3.0.5
v3.0.6
v3.0.7
v3.1.0
v3.1.1
v3.2.0
v3.2.1
v3.3.0
v3.4.0
v3.4.1
v3.4.2
v3.4.3
v3.4.4
v3.4.5
v4.*
v4.0.0
v4.0.1
v4.1.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-65562.json"