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) 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/.
- CVSS
- 7.5Highscored by CISA
- Exploited in the wild
- Yes, in CISA KEV since 25 Mar 2022CISA deadline for US federal agencies: 15 Apr 2022
- EPSS
- 83.9%chance of exploitation in the next 30 daystop 0.4% of scored CVEsFIRST score of 11 Nov 2026
- Fix
- Not stated by the vendorno fixed release in the CVE record
- Published
- 22 Apr 2015analysed here 12 Nov 2026
Do first. Apply updates per vendor instructions. (CISA's required action for this KEV entry)
Summary
Triage
The summary, impact and action text on this page are written by our AI analysis pipeline, or taken from the NVD description when a CVE was imported from NVD. They are not the vendor's wording: check them against the sources. A longer AI executive summary and technical analysis are generated for signed-in accounts on the Max plan.
Affected products
Products named in our analysis
- tp-link:tl-wr741nd_firmware
- tp-link:tl-wr841n_firmware
- tp-link:tl-wr740n_firmware
- tp-link:archer_c5_firmware
- tp-link:tl-wdr3600_firmware
- tp-link:archer_c7_firmware
- tp-link:tl-wr841nd_firmware
- tp-link:archer_c9_firmware
- tp-link:archer_c8_firmware
- tp-link:tl-wdr4300_firmware
- tp-link:tl-wdr3500_firmware
Fix and mitigation
WAF and other mitigations
Can a WAF block it? Yes. Path traversal sends `../` sequences in the request, which WAF rules catch, including the common encodings.
Also consider: canonical path validation
Based on the weakness type only; no CVE-specific evidence yet. We check Cloudflare, AWS, Google Cloud Armor and Azure; for Akamai, Imperva, Fastly, F5, ask your vendor.
Remediation steps (AI-written)
Step-by-step remediation is generated for accounts on the Max plan, for CVEs that match a technology in their stack. Add this technology to your stack to see the fix checklist.
Exploitation evidence
- CISA KEV catalog
- Listed since 25 Mar 2022.
- CISA due date
- 15 Apr 2022, the remediation deadline for US federal agencies
- CISA required action
- Apply updates per vendor instructions.
- Public exploit code
- Detection templates only, no public exploit found: 1 Metasploit module · 1 Nuclei template
- CISA SSVC
- exploitation active, automatable yes, technical impact partialAssessed by CISA 4 Feb 2025 (SSVC 2.0.3). Exploitation is none, poc (public proof of concept) or active.
Metasploit
- auxiliary/gather/tplink_archer_c7_traversalauxiliary, rank normal
Nuclei
- TP-LINK - Local File Inclusiondetection template, high
Listed so you can judge urgency, not as a recommendation to run anything. GitHub “proofs of concept” are unvetted: some are fake or carry malware. Exploit-DB marks the entries its staff verified.
Timeline
- 22 Apr 2015Published
- 25 Mar 2022Added to CISA KEV (exploited in the wild)2,529 days (about 7 years) later
- 15 Apr 2022CISA remediation due date (US federal agencies)21 days later
- 4 Feb 2025CISA SSVC assessment: exploitation active1,027 days (about 3 years) later
- 21 Oct 2025CVE record last updated259 days (about 9 months) later
- 12 Nov 2026Analysed by vulneraibility.com387 days (about 1 year) later
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
| Metric | Value | What it means |
|---|---|---|
| Attack vector | NetworkReachable over the internet or any routable network. | Reachable over the internet or any routable network. |
| Attack complexity | LowRepeatable attack, no special conditions. | Repeatable attack, no special conditions. |
| Privileges required | NoneThe attacker needs no prior access. | The attacker needs no prior access. |
| User interaction | NoneNo victim action needed. | No victim action needed. |
| Scope | UnchangedImpact stays within the vulnerable component. | Impact stays within the vulnerable component. |
| Confidentiality | HighTotal data disclosure possible. | Total data disclosure possible. |
| Integrity | NoneNo unauthorised modification. | No unauthorised modification. |
| Availability | NoneThe service stays up. | The service stays up. |
Common questions
Is CVE-2015-3035 being exploited?
Yes. CVE-2015-3035 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.
How severe is CVE-2015-3035?
CVE-2015-3035 is rated High with a CVSS score of 7.5. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2015-3035?
Not known from our data. No patch reference has been recorded for CVE-2015-3035, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2015-3035 affect?
CVE-2015-3035 affects tp-link:tl-wr741nd_firmware, tp-link:tl-wr841n_firmware, tp-link:tl-wr740n_firmware, tp-link:archer_c5_firmware, and 7 further products or versions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
References
17 references in the CVE record, grouped by the tags the record gives them.
Other links (17)
- tp-link.com /en/download/Archer-C9_V1.html#Firmware
- tp-link.com /en/download/Archer-C7_V2.html#Firmware
- tp-link.com /en/download/TL-WR740N_V5.html#Firmware
- tp-link.com /en/download/Archer-C5_V1.20.html#Firmware
- packetstormsecurity.com /files/131378/TP-LINK-Local-File-Disclosure.html
- tp-link.com /en/download/TL-WR841N_V9.html#Firmware
Show 11 more
- tp-link.com /en/download/TL-WR841ND_V9.html#Firmware
- seclists.org /fulldisclosure/2015/Apr/26
- tp-link.com /en/download/TL-WDR3600_V1.html#Firmware
- tp-link.com /en/download/TL-WDR3500_V1.html#Firmware
- securityfocus.com /bid/74050
- sec-consult.com /fxdata/seccons/prod/temedia/advisories_txt/20150410-0_TP-Link_Unauthenticated_l
- tp-link.com /en/download/TL-WR741ND_V5.html#Firmware
- tp-link.com /en/download/Archer-C8_V1.html#Firmware
- tp-link.com /en/download/TL-WDR4300_V1.html#Firmware
- securityfocus.com /archive/1/535240/100/0/threaded
- cisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-3035
Where the data on this page comes from
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA KEV catalog: exploitation, date added, due date
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
- Metasploit Framework: exploit and scanner modules
- Nuclei templates: detection templates
Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.
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