# CVE-2025-15532: Open5GS Timer resource consumption

> Remote attackers can cause resource exhaustion in Open5GS via the Timer Handler, leading to denial of service.

- **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:** 17 Jan 2026
- **Updated:** 26 Feb 2026
- **Also known as:** GHSA-27fq-8xxm-gqgw

## What is CVE-2025-15532?

CVE-2025-15532 is a medium-severity denial of service vulnerability in Open5gs Open5gs, published on 17 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A security flaw has been discovered in Open5GS up to 2.7.5. This issue affects some unknown processing of the component Timer Handler. The manipulation results in resource consumption. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks. The patch is identified as c7c131f8d2cb1195ada5e0e691b6868ebcd8a845. It is best practice to apply a patch to resolve this issue.

Weakness: CWE-404 (Improper Resource Shutdown or Release), CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2025-15532?

It affects 1 product.


Products: Open5gs Open5gs.

## How do I fix CVE-2025-15532?

No fix has been published for CVE-2025-15532 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-15532 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15532 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-2025-15532 and fix it if it is affected.

What it is: CVE-2025-15532 is a medium-severity denial of service vulnerability in Open5gs Open5gs, published on 17 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-2025-15532 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-2025-15532/ (Markdown: https://insights.sbomify.com/CVE-2025-15532/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-15532
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-15532
- OSV: https://osv.dev/vulnerability/CVE-2025-15532

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-15532/
Summaries are generated and may contain mistakes; the official description above is the record.