# CVE-2025-15528: Open5GS GTPv2 Bearer Response denial of service

> Remote attackers can cause a denial of service in Open5GS by exploiting the GTPv2 Bearer Response Handler.

- **Severity:** Medium 6.9 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Jan 2026
- **Updated:** 26 Feb 2026
- **Also known as:** GHSA-29jx-3q54-p8gq

## What is CVE-2025-15528?

CVE-2025-15528 is a medium-severity denial of service vulnerability in Open5gs Open5gs, published on 16 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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.

Weakness: CWE-404 (Improper Resource Shutdown or Release)

## Which versions are affected by CVE-2025-15528?

It affects 1 product.


Products: Open5gs Open5gs.

## How do I fix CVE-2025-15528?

No fix has been published for CVE-2025-15528 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-15528 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15528 exists.

## Other vulnerabilities in Open5gs Open5gs

- [CVE-2024-40130](https://insights.sbomify.com/CVE-2024-40130/): Memory corruption in n/a (critical 9.8)
- [CVE-2021-28122](https://insights.sbomify.com/CVE-2021-28122/): Missing authorization in n/a (critical 9.8)
- [CVE-2021-25863](https://insights.sbomify.com/CVE-2021-25863/): Hardcoded credentials in n/a (high 8.8)
- [CVE-2025-41067](https://insights.sbomify.com/CVE-2025-41067/): Reachable Assertion vulnerability in Open5GS (high 8.7)
- [CVE-2025-41068](https://insights.sbomify.com/CVE-2025-41068/): Reachable Assertion vulnerability in Open5GS (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-15528 and fix it if it is affected.

What it is: CVE-2025-15528 is a medium-severity denial of service vulnerability in Open5gs Open5gs, published on 16 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15528 exists.

Affected product: Open5gs Open5gs. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-15528/ (Markdown: https://insights.sbomify.com/CVE-2025-15528/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-15528
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-15528
- OSV: https://osv.dev/vulnerability/CVE-2025-15528

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-15528/
Summaries are generated and may contain mistakes; the official description above is the record.