CVE-2021-35973
highpriority · track · 40EPSS 0.031 · 88 %ileEUUSEPSS · scored 2026-10-27
NETGEAR WAC104 devices before 1.0.4.15 are affected by an authentication bypass vulnerability in /usr/sbin/mini_httpd, allowing an unauthenticated attacker to invoke any action by adding the ¤tsetting.htm substring to the HTTP query, a related issue to CVE-2020-27866. This directly allows the attacker to change the web UI password, and eventually to enable debug mode (telnetd) and gain a shell on the device as the admin limited-user account (however, escalation to root is simple because of weak permissions on the /etc/ directory).
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 9–10
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://gynvael.coldwind.pl/?lang=en&id=736cnnvd
- https://kb.netgear.com/000063785/Security-Advisory-for-Authentication-Bypass-on-WAC104-PSV-2021-0075cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-35973cnnvd
- https://gynvael.coldwind.pl/?lang=en&id=736enisa_euvd
- https://kb.netgear.com/000063785/Security-Advisory-for-Authentication-Bypass-on-WAC104-PSV-2021-0075enisa_euvd
- https://gynvael.coldwind.pl/?lang=en&id=736ExploitThird Party Advisorynvd
- https://kb.netgear.com/000063785/Security-Advisory-for-Authentication-Bypass-on-WAC104-PSV-2021-0075Vendor Advisorynvd
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