HOMEVULNERABILITIESCVE-2017-11519
CRITICAL

CVE-2017-11519

CWE-335Published: July 21, 2017· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

passwd_recovery.lua on the TP-Link Archer C9(UN)_V2_160517 allows an attacker to reset the admin password by leveraging a predictable random number generator seed. This is fixed in C9(UN)_V2_170511.

NVD Source

Technical Analysis

CVE-2017-11519 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

tp-link2 product(s)
archer c9 \(2.0\) firmwarearcher c9 \(2.0\)
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.tp-link.com/en/download/Archer-C9_V2.html#Firmware
ADVISORYhttps://devcraft.io/posts/2017/07/21/tp-link-archer-c9-admin-password-reset.html
ADVISORYhttp://www.tp-link.com/en/download/Archer-C9_V2.html#Firmware
ADVISORYhttps://devcraft.io/posts/2017/07/21/tp-link-archer-c9-admin-password-reset.html

All References (4)

→
http://www.tp-link.com/en/download/Archer-C9_V2.html#FirmwareThird Party Advisory
→
https://devcraft.io/posts/2017/07/21/tp-link-archer-c9-admin-password-reset.htmlExploit · Third Party Advisory
→
http://www.tp-link.com/en/download/Archer-C9_V2.html#FirmwareThird Party Advisory
→
https://devcraft.io/posts/2017/07/21/tp-link-archer-c9-admin-password-reset.htmlExploit · Third Party Advisory

Quick Facts

CVE IDCVE-2017-11519
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-335
CISA KEVNo
Affected1 vendor(s)
PublishedJul 21, 2017

Related CVEs (CWE-335)

CVE-2019-11495
9.8
CVE-2019-10908
9.8
CVE-2024-36048
9.8
CVE-2023-4472
9.8
CVE-2012-1577
9.8
CVE-2021-41117
9.1

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-11519 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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