CVE-2025-8804

Name: CVE-2025-8804
Creator: NVD / NIST
Published: 2025-08-10T10:15:26.647+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.73%

Last modified Jun 17, 2026

CVE-2025-8804 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A vulnerability was found in Open5GS up to 2.7.5. Affected by this vulnerability is the function ngap_build_downlink_nas_transport of the component AMF. EPSS estimates a 0.73% chance of exploitation in the next 30 days.

Description

A vulnerability was found in Open5GS up to 2.7.5. Affected by this vulnerability is the function ngap_build_downlink_nas_transport of the component AMF. The manipulation leads to reachable assertion. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.7.6 is able to address this issue. The identifier of the patch is bca0a7b6e01d254f4223b83831162566d4626428. It is recommended to upgrade the affected component.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS 4.0

5.5/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.73%

49.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-617

Affected Software

Vendor	Product	Versions
Open5gs	Open5gs	< 2.7.6

References

https://github.com/ZHENGHAOHELLO/BugReport/blob/main/CVE-2025-8804
https://github.com/open5gs/open5gs/commit/bca0a7b6e01d254f4223b83831162566d4626428Patch
https://github.com/open5gs/open5gs/issues/3950Issue Tracking
https://github.com/open5gs/open5gs/issues/3950#issuecomment-3034693457Issue Tracking
https://github.com/open5gs/open5gs/releases/tag/v2.7.6Release Notes
https://github.com/user-attachments/files/21030801/newdata_for_ngap.zipExploit
https://vuldb.com/?ctiid.319333Permissions Required, VDB Entry
https://vuldb.com/?id.319333Third Party Advisory, VDB Entry
https://vuldb.com/?submit.625698
https://vuldb.com/?submit.626124Third Party Advisory, VDB Entry
https://github.com/open5gs/open5gs/issues/3950Issue Tracking

Timeline

Published: Aug 10, 2025
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2025-8804?

How severe is CVE-2025-8804?

CVE-2025-8804 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.73% probability of exploitation in the next 30 days.

How do I fix CVE-2025-8804?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-8804?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST