HOMEVULNERABILITIESCVE-2022-36159
HIGH

CVE-2022-36159

CWE-798Published: September 26, 2022· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official Description

Contec FXA3200 version 1.13 and under were discovered to contain a hard coded hash password for root stored in the component /etc/shadow. As the password strength is weak, it can be cracked in few minutes. Through this credential, a malicious actor can access the Wireless LAN Manager interface and open the telnet port then sniff the traffic or inject any malware.

NVD Source

Technical Analysis

CVE-2022-36159 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:3.1/AV:A/AC:L/PR:N/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-2022-36159
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-798
CISA KEVNo
Affected1 vendor(s)
PublishedSep 26, 2022

Related CVEs (CWE-798)

CVE-2026-13768
10.0
CVE-2014-9198
10.0
CVE-2026-45631
10.0
CVE-2025-7503
10.0
CVE-2021-40422
10.0
CVE-2017-2343
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-36159 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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