HOMEVULNERABILITIESCVE-2018-15557
HIGH

CVE-2018-15557

CWE-269Published: June 27, 2019· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official Description

An issue was discovered in the Quantenna WiFi Controller on Telus Actiontec WEB6000Q v1.1.02.22 devices. An attacker can statically set his/her IP to anything on the 169.254.1.0/24 subnet, and obtain root access by connecting to 169.254.1.2 port 23 with telnet/netcat.

NVD Source

Technical Analysis

CVE-2018-15557 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

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 8.8.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

actiontec2 product(s)
web6000q firmwareweb6000q
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://packetstormsecurity.com/files/153262/Telus-Actiontec-WEB6000Q-Privilege-Escalation.html
ADVISORYhttp://seclists.org/fulldisclosure/2019/Jun/2
ADVISORYhttp://packetstormsecurity.com/files/153262/Telus-Actiontec-WEB6000Q-Privilege-Escalation.html
ADVISORYhttp://seclists.org/fulldisclosure/2019/Jun/2

All References (4)

→
http://packetstormsecurity.com/files/153262/Telus-Actiontec-WEB6000Q-Privilege-Escalation.htmlExploit · Third Party Advisory · VDB Entry
→
http://seclists.org/fulldisclosure/2019/Jun/2Mailing List · Third Party Advisory
→
http://packetstormsecurity.com/files/153262/Telus-Actiontec-WEB6000Q-Privilege-Escalation.htmlExploit · Third Party Advisory · VDB Entry
→
http://seclists.org/fulldisclosure/2019/Jun/2Mailing List · Third Party Advisory

Quick Facts

CVE IDCVE-2018-15557
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-269
CISA KEVNo
Affected1 vendor(s)
PublishedJun 27, 2019

Related CVEs (CWE-269)

CVE-2022-24783
10.0
CVE-2024-6240
10.0
CVE-2021-1388
10.0
CVE-2020-27655
10.0
CVE-2026-31852
10.0
CVE-2025-0505
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-15557 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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