# CVE-2025-51281: Memory corruption in n/a

> Authenticated attackers can cause a Denial of Service on D-Link DI-8100 routers by sending crafted GET requests with overly long parameters.

- **Severity:** High 7.0 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Aug 2025
- **Updated:** 25 Aug 2025
- **Also known as:** GHSA-wx86-7gq4-q238

## What is CVE-2025-51281?

CVE-2025-51281 is a high-severity memory corruption vulnerability in n/a, published on 25 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

D-Link DI-8100 16.07.26A1 is vulnerable to Buffer Overflow via the en`, `val and id parameters in the qj_asp function. This vulnerability allows authenticated attackers to cause a Denial of Service (DoS) by sending crafted GET requests with overly long values for these parameters.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2025-51281?

It affects 1 product.


Products: Dlink Di-8100 Firmware.

## How do I fix CVE-2025-51281?

No fix has been published for CVE-2025-51281 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-51281 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-51281 exists.

## Other vulnerabilities in n/a

- [CVE-2025-44083](https://insights.sbomify.com/CVE-2025-44083/): Auth bypass in n/a (critical 9.8)
- [CVE-2026-7853](https://insights.sbomify.com/CVE-2026-7853/): D-Link DI-8100 HTTP auto_reboot.asp sprintf buffer overflow (critical 9.3)
- [CVE-2026-7854](https://insights.sbomify.com/CVE-2026-7854/): D-Link DI-8100 POST Parameter url_rule.asp url_rule_asp buffer overflow (critical 9.3)
- [CVE-2026-7248](https://insights.sbomify.com/CVE-2026-7248/): D-Link DI-8100 CGI Endpoint tgfile.htm tgfile_htm buffer overflow (critical 9.3)
- [CVE-2026-7855](https://insights.sbomify.com/CVE-2026-7855/): D-Link DI-8100 HTTP Request tggl.asp tggl_asp buffer overflow (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-51281 and fix it if it is affected.

What it is: CVE-2025-51281 is a high-severity memory corruption vulnerability in n/a, published on 25 Aug 2025. 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-2025-51281 exists.

Affected product: n/a. 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-2025-51281/ (Markdown: https://insights.sbomify.com/CVE-2025-51281/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-51281
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-51281
- OSV: https://osv.dev/vulnerability/CVE-2025-51281

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-51281/
Summaries are generated and may contain mistakes; the official description above is the record.