Open5GS GTPv2 Bearer Response denial of service
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-404.
Summary
A vulnerability has been found in Open5GS up to 2.7.6. Affected by this vulnerability is an unknown functionality of the component GTPv2 Bearer Response Handler. Such manipulation leads to denial of service. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The name of the patch is 98f76e98df35cd6a35e868aa62715db7f8141ac1. A patch should be applied to remediate this issue.
Why it matters now
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 |
|---|---|---|---|---|---|
| — | Open5GS | 2.7.0; 2.7.1; 2.7.2; 2.7.3; 2.7.4; 2.7.5; 2.7.6 | — | No fix listed | CNA |
- Open5GS Vendor— Affected 2.7.0; 2.7.1; 2.7.2; 2.7.3; 2.7.4; 2.7.5; 2.7.6 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-15528
- 2026-10-03 Alias added: GHSA-29jx-3q54-p8gq
References
More Open5gs vulnerabilities
- TI-2024-26883 open5gs v2.6.4 is vulnerable to Buffer Overflow. CVSS 3.1CRITICAL 9.8
- TI-2024-26882 Open5GS v2.6.4 is vulnerable to Buffer Overflow. CVSS 3.1CRITICAL 9.8
- TI-2024-22649 Open5GS MME versions <= 2.6.4 contains an assertion that can be remotely triggered via a… CVSS 3.1HIGH 8.6
- TI-2023-18757 Open5GS MME versions <= 2.6.4 contain a reachable assertion in the `Uplink NAS Transport`… CVSS 3.1HIGH 8.6
- TI-2023-18755 Open5GS MME version <= 2.6.4 contains an assertion that can be remotely triggered via a… CVSS 3.1HIGH 8.6
- TI-2023-18754 Open5GS MME versions <= 2.6.4 contain an assertion that can be remotely triggered via a… CVSS 3.1HIGH 8.6
Sources
- CVE-2025-15528 · CVE Program
- CVE-2025-15528 · NVD
- FIRST EPSS
- GHSA-29jx-3q54-p8gq · GitHub Advisory Database · CC BY 4.0
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