HOMEVULNERABILITIESCVE-2022-36158
HIGH

CVE-2022-36158

CWE-425Published: September 26, 2022· Updated: Jun 17, 2026

8.0
CVSS v3.1

Official Description

Contec FXA3200 version 1.13.00 and under suffers from Insecure Permissions in the Wireless LAN Manager interface which allows malicious actors to execute Linux commands with root privilege via a hidden web page (/usr/www/ja/mnt_cmd.cgi).

NVD Source

Technical Analysis

CVE-2022-36158 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

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 8.0.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorAdjacent
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

contec8 product(s)
fxa3000 firmwarefxa3000fxa3020 firmwarefxa3020fxa3200 firmwarefxa3200fxa2000 firmwarefxa2000
Source: NVD CPE · 8 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

PATCHhttps://jvn.jp/en/vu/JVNVU98305100/
PATCHhttps://jvn.jp/en/vu/JVNVU98305100/
ADVISORYhttps://gist.github.com/Nwqda/aac33d1936d2b514a3268f145345abb4
ADVISORYhttps://samy.link/blog/contec-flexlan-fxa2000-and-fxa3000-series-vulnerability-repo
ADVISORYhttps://gist.github.com/Nwqda/aac33d1936d2b514a3268f145345abb4
ADVISORYhttps://samy.link/blog/contec-flexlan-fxa2000-and-fxa3000-series-vulnerability-repo

All References (8)

→
https://gist.github.com/Nwqda/aac33d1936d2b514a3268f145345abb4Broken Link · Third Party Advisory
→
https://jvn.jp/en/vu/JVNVU98305100/Patch · Third Party Advisory
→
https://samy.link/blog/contec-flexlan-fxa2000-and-fxa3000-series-vulnerability-repoExploit · Mitigation · Third Party Advisory
→
https://www.contec.com/products-services/computer-networking/flexlan-fx/fx-accesspoint/fxa3200/feature/#sectionProduct
→
https://gist.github.com/Nwqda/aac33d1936d2b514a3268f145345abb4Broken Link · Third Party Advisory
→
https://jvn.jp/en/vu/JVNVU98305100/Patch · Third Party Advisory
→
https://samy.link/blog/contec-flexlan-fxa2000-and-fxa3000-series-vulnerability-repoExploit · Mitigation · Third Party Advisory
→
https://www.contec.com/products-services/computer-networking/flexlan-fx/fx-accesspoint/fxa3200/feature/#sectionProduct

Quick Facts

CVE IDCVE-2022-36158
CVSS Score8.0 / 10
SeverityHIGH
WeaknessCWE-425
CISA KEVNo
Affected1 vendor(s)
PublishedSep 26, 2022

Related CVEs (CWE-425)

CVE-2018-3774
10.0
CVE-2018-6624
9.8
CVE-2022-26279
9.8
CVE-2017-17736
9.8
CVE-2018-18922
9.8
CVE-2019-16340
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-36158 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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