CVE-2016-6603 describes a critical authentication bypass vulnerability in ZOHO WebNMS Framework versions 5.2 and 5.2 SP1, allowing remote attackers to impersonate any user by manipulating the UserName HTTP header. With a CVSS score of 9.8 (Critical), this vulnerability is easily exploitable over the network with low attack complexity, leading to complete compromise of confidentiality, integrity, and availability. While not listed on the CISA KEV catalog, exploit code is publicly available on ExploitDB, though there is no evidence of active exploitation, Metasploit modules, or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
5.2CPE matchmatch criteria | cpe:2.3:a:zohocorp:webnms_framework:5.2:*:*:*:*:*:*:* | ||
5.2CPE matchmatch criteria | cpe:2.3:a:zohocorp:webnms_framework:5.2:sp1:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.