# CVE-2025-7460: TOTOLINK T6 HTTP POST Request cstecgi.cgi setWiFiAclRules buffer overflow

> Remote attackers can trigger a buffer overflow in the WiFi ACL rules handler, potentially leading to code execution or privilege escalation on TOTOLINK T6 routers.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P`)
- **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:** 11 Jul 2025
- **Updated:** 14 Jul 2025
- **Also known as:** GHSA-xgh4-wmvj-9mvr

## What is CVE-2025-7460?

CVE-2025-7460 is a high-severity memory corruption vulnerability in TOTOLINK T6, published on 11 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability has been found in TOTOLINK T6 4.1.5cu.748_B20211015 and classified as critical. Affected by this vulnerability is the function setWiFiAclRules of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the argument mac leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input), CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2025-7460?

It affects 1 product.


Products: Totolink T6 Firmware.

## How do I fix CVE-2025-7460?

No fix has been published for CVE-2025-7460 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-7460 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-7460 exists.

## Other vulnerabilities in TOTOLINK T6

- [CVE-2023-7221](https://insights.sbomify.com/CVE-2023-7221/): Totolink T6 HTTP POST Request main buffer overflow (critical 9.8)
- [CVE-2022-38823](https://insights.sbomify.com/CVE-2022-38823/): Hardcoded credentials in n/a (critical 9.8)
- [CVE-2022-38826](https://insights.sbomify.com/CVE-2022-38826/): Command injection in n/a (critical 9.8)
- [CVE-2022-38827](https://insights.sbomify.com/CVE-2022-38827/): Memory corruption in n/a (critical 9.8)
- [CVE-2022-38828](https://insights.sbomify.com/CVE-2022-38828/): Command injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-7460 and fix it if it is affected.

What it is: CVE-2025-7460 is a high-severity memory corruption vulnerability in TOTOLINK T6, published on 11 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-7460 exists.

Affected product: TOTOLINK T6. 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-2025-7460/ (Markdown: https://insights.sbomify.com/CVE-2025-7460/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-7460
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-7460
- OSV: https://osv.dev/vulnerability/CVE-2025-7460

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-7460/
Summaries are generated and may contain mistakes; the official description above is the record.