# CVE-2022-4499: Information disclosure in Archer C5

> An attacker can guess router credentials by measuring response times of the httpd process, potentially leading to unauthorized access.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Jan 2023
- **Updated:** 4 Nov 2025
- **Also known as:** GHSA-q8rg-vqgg-9pmq

## What is CVE-2022-4499?

CVE-2022-4499 is a high-severity vulnerability in TP-Link Archer C5, published on 11 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

TP-Link routers, Archer C5 and WR710N-V1, using the latest software, the strcmp function used for checking credentials in httpd, is susceptible to a side-channel attack. By measuring the response time of the httpd process, an attacker could guess each byte of the username and password.

Weakness: CWE-203 (Observable Discrepancy)

## Which versions are affected by CVE-2022-4499?

It affects 2 products.


Products: Tp-Link Archer C5 Firmware, Tp-Link Tl-Wr710n Firmware.

## How do I fix CVE-2022-4499?

No fix has been published for CVE-2022-4499 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-4499 being exploited?

There is no known exploitation of CVE-2022-4499 in the wild and no public exploit code.

## Other vulnerabilities in TP-Link Archer C5

- [CVE-2015-3035](https://insights.sbomify.com/CVE-2015-3035/): TP-Link Multiple Archer Devices Directory Traversal (high 7.5, exploited in the wild)
- [CVE-2022-4498](https://insights.sbomify.com/CVE-2022-4498/): Memory corruption in Archer C5 (critical 9.8)
- [CVE-2020-35575](https://insights.sbomify.com/CVE-2020-35575/): Information disclosure in n/a (critical 9.8)
- [CVE-2018-19537](https://insights.sbomify.com/CVE-2018-19537/): Command injection in n/a (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-4499 and fix it if it is affected.

What it is: CVE-2022-4499 is a high-severity vulnerability in TP-Link Archer C5, published on 11 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-4499 in the wild and no public exploit code.

Affected product: TP-Link Archer C5. 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-2022-4499/ (Markdown: https://insights.sbomify.com/CVE-2022-4499/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-4499
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-4499
- OSV: https://osv.dev/vulnerability/CVE-2022-4499

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-4499/
Summaries are generated and may contain mistakes; the official description above is the record.