# CVE-2026-18585: GL.iNet MT2500 APPS-NAS nas-web.get_file_list heap-based overflow

> Remote attackers can trigger a heap-based buffer overflow in the NAS module of GL.iNet routers, potentially leading to code execution or service disruption.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Aug 2026
- **Updated:** 3 Aug 2026
- **Also known as:** GHSA-jrxr-jp3v-2pw6

## What is CVE-2026-18585?

CVE-2026-18585 is a medium-severity memory corruption vulnerability in GL.iNet BE3600, published on 3 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was detected in GL.iNet MT3000, MT6000, BE9300, BE3600, MT3600BE, E5800, BE6500, MT5000, X3000, XE3000 and MT2500 up to 20260707. The affected element is the function nas-web.get_file_list of the component APPS-NAS Module. Performing a manipulation results in heap-based buffer overflow. The attack may be initiated remotely. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.

Weakness: CWE-122 (Heap-based Buffer Overflow), CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2026-18585?


## How do I fix CVE-2026-18585?

No fix has been published for CVE-2026-18585 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-18585 being exploited?

There is no known exploitation of CVE-2026-18585 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-18585 and fix it if it is affected.

What it is: CVE-2026-18585 is a medium-severity memory corruption vulnerability in GL.iNet BE3600, published on 3 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-18585 in the wild and no public exploit code.

Affected product: GL.iNet BE3600. 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-2026-18585/ (Markdown: https://insights.sbomify.com/CVE-2026-18585/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-18585
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-18585
- OSV: https://osv.dev/vulnerability/CVE-2026-18585

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-18585/
Summaries are generated and may contain mistakes; the official description above is the record.