Buffer Overflow Vulnerability in NETGEAR Routers
CVE-2022-27643

8.8HIGH

Key Information:

Vendor

Netgear
Status
R6700v3
Vendor
CVE Published:
29 March 2023

What is CVE-2022-27643?

A vulnerability exists in the NETGEAR R6700v3 router allowing network-adjacent attackers to execute arbitrary code without authentication. The flaw arises from improper validation of the length of user-supplied data in SOAP requests, particularly when parsing the SOAPAction header. This could enable an attacker to manipulate memory structures and execute malicious code with root privileges.

Affected Version(s)

R6700v3 1.0.4.120_10.0.91

References

https://www.zerodayinitiative.com/advisories/ZDI-22-519/
https://kb.netgear.com/000064720/Security-Advisory-for-Pr...

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

CVSS V3.0

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Stephen Fewer of Relyze Software Limited (www.relyze.com)
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