NETGEAR CAX30S SSO Command Injection Remote Code Execution Vulnerability

published 2024-05-07 2 y ago modified 2026-06-17 4 mo ago also EUVD-2022-46650

cvss: 8.8; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits: 0; none known

NETGEAR CAX30S SSO Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR CAX30S routers. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of the token parameter provided to the sso.php endpoint. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-18227.

Patch / fix

fixed in 2

netgear cax30_firmware 2.1.3.10
netgear cax30s_firmware 2.1.3.10

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-05-08)

Exploit prediction

1.14% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	8.8	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

NETGEAR CAX30S
netgear cax30

Classification

Weakness

CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

kb.netgear.com /000065527/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Cable-Modem-Routers-PSV-2022-020
vendor-advisory
zerodayinitiative.com /advisories/ZDI-23-214/
third-party-advisory

Sources

CVE List CVE-2022-43654
NVD CVE-2022-43654

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary