CVE-2025-15687CWE-404

CVE-2025-15687

Medium · published August 12, 2026

CVSS v3.1
4.3
EPSS
1%
Percentile
50.0
In the wild
Unconfirmed
What it is

A security flaw has been discovered in Open5GS up to 2.7.6. Impacted is the function smf_gx_cca_cb of the component SMF Diameter Gx Credit-Control-Answer Handler. The manipulation results in denial of service. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 2.7.7 is recommended to address this issue. The patch is identified as f23d7a5e959acd8f37b925dc29b85f26b7d391cb. Upgrading the affected component is advised.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00639 · 50.0th percentile
Weakness
CWE-404 · Improper Resource Shutdown or Release
Published
2026-08-12T08:17Z
References (10)
https://github.com/open5gs/open5gs/ · [email protected]https://github.com/open5gs/open5gs/commit/f23d7a5e959acd8f37b925dc29b85f26b7d391cb · [email protected]https://github.com/open5gs/open5gs/issues/4027 · [email protected]https://github.com/open5gs/open5gs/pull/4034 · [email protected]https://github.com/open5gs/open5gs/releases/tag/v2.7.7 · [email protected]https://github.com/user-attachments/files/21515527/SMF.crashes.zip · [email protected]https://vuldb.com/cve/CVE-2025-15687 · [email protected]https://vuldb.com/submit/867119 · [email protected]https://vuldb.com/vuln/387283 · [email protected]https://vuldb.com/vuln/387283/cti · [email protected]
EPSS history
Timeline
  • 12 AUG 02:45Z
    Open5GS SMF Diameter Gx Credit-Control-Answer smf_gx_cca_cb denial of service
    cvelistv5