🛡️ CVE-2026-8251 — open5gs

🟡 CVSS 4.3 — Medium ⚠️ Exploit Public CWE-404 NVD
4.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A vulnerability was found in Open5GS up to 2.7.7. This impacts the function update_authorized_pcc_rule_and_qos of the file /src/smf/npcf-handler.c of the component SMF. Performing a manipulation results in denial of service. The attack is possible to be carried out remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability low.

Weakness class

CVE-2026-8251 is classified as CWE-404: Improper Resource Shutdown or Release. A resource is not released correctly after use, leaving it locked, leaked or in an inconsistent state.

Affected software

CVE-2026-8251 is recorded against 2 packages.

  • open5gs (fixed in 2.7.7)
  • unknown

Timeline and source

Published on 10 May 2026 and last revised on 24 July 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

github.com
github.com
vuldb.com
vuldb.com
vuldb.com

Details

Severity MEDIUM
CVSS Score 4.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CWE CWE-404
Public Exploit ⚠️ Yes
Source NVD
Published 2026-05-10
Updated 2026-08-11
Modified 2026-07-24
Fix URL N/A

Affected Packages

Software From version Fixed in
open5gs 2.7.7
unknown

References

Third Party Advisory, VDB Entry https://vuldb.com/submit/808480
Third Party Advisory, VDB Entry https://vuldb.com/vuln/362548
Permissions Required, VDB Entry https://vuldb.com/vuln/362548/cti

Similar Threats

Exploit Protection

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