HOMEVULNERABILITIESCVE-2022-27642
HIGH

CVE-2022-27642

CWE-863Published: March 29, 2023· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official Description

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the httpd service. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-15854.

NVD Source

Technical Analysis

CVE-2022-27642 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

netgear66 product(s)
cax80 firmwarecax80lax20 firmwarelax20mr60 firmwaremr60mr80 firmwaremr80ms60 firmwarems60ms80 firmwarems80+54
Source: NVD CPE · 67 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

ADVISORYhttps://kb.netgear.com/000064723/Security-Advisory-for-Multiple-Vulnerabilities-on-Multiple-Products-PSV-2021-0327
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-22-518/
ADVISORYhttps://kb.netgear.com/000064723/Security-Advisory-for-Multiple-Vulnerabilities-on-Multiple-Products-PSV-2021-0327
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-22-518/

All References (4)

→
https://kb.netgear.com/000064723/Security-Advisory-for-Multiple-Vulnerabilities-on-Multiple-Products-PSV-2021-0327Vendor Advisory
→
https://www.zerodayinitiative.com/advisories/ZDI-22-518/Third Party Advisory · VDB Entry
→
https://kb.netgear.com/000064723/Security-Advisory-for-Multiple-Vulnerabilities-on-Multiple-Products-PSV-2021-0327Vendor Advisory
→
https://www.zerodayinitiative.com/advisories/ZDI-22-518/Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2022-27642
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-863
CISA KEVNo
Affected1 vendor(s)
PublishedMar 29, 2023

Related CVEs (CWE-863)

CVE-2026-44330
10.0
CVE-2026-48303
10.0
CVE-2020-13300
10.0
CVE-2021-38503
10.0
CVE-2018-18815
10.0
CVE-2023-4617
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-27642 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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