HOMEVULNERABILITIESCVE-2022-27947
HIGH

CVE-2022-27947

CWE-78Published: March 26, 2022· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official Description

NETGEAR R8500 1.0.2.158 devices allow remote authenticated users to execute arbitrary commands (such as telnetd) via shell metacharacters in the ipv6_fix.cgi ipv6_wan_ipaddr, ipv6_lan_ipaddr, ipv6_wan_length, or ipv6_lan_length parameter.

NVD Source

Technical Analysis

CVE-2022-27947 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

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 8.8.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

netgear2 product(s)
r8500 firmwarer8500
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

PATCHhttps://github.com/donothingme/VUL/blob/main/vul1/1.md
PATCHhttps://github.com/donothingme/VUL/blob/main/vul1/1.md

All References (2)

→
https://github.com/donothingme/VUL/blob/main/vul1/1.mdExploit · Patch · Third Party Advisory
→
https://github.com/donothingme/VUL/blob/main/vul1/1.mdExploit · Patch · Third Party Advisory

Quick Facts

CVE IDCVE-2022-27947
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-78
CISA KEVNo
Affected1 vendor(s)
PublishedMar 26, 2022

Related CVEs (CWE-78)

CVE-2019-5485
10.0
CVE-2013-4983
10.0
CVE-2023-2564
10.0
CVE-2024-24576
10.0
CVE-2014-6277
10.0
CVE-2012-2953
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-27947 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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