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CVE-2016-6601

91
FAUCET Score

CVE-2016-6601 is a directory traversal vulnerability in ZOHO WebNMS Framework versions 5.2 and 5.2 SP1, allowing remote attackers to read arbitrary files. This high-severity flaw (CVSS 7.5) has a low attack complexity and requires no authentication, enabling attackers to access sensitive information. While not listed in CISA KEV, exploit code is publicly available via Metasploit modules, Nuclei templates, and ExploitDB, indicating a high likelihood of exploitation. Community discussion and a high EPSS score further emphasize its potential risk.

Impacted Technologies

VendorProductVersion(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 Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
97.41%
Probability of exploitation in next 30 days
EPSS Percentile
99.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
Metasploit: WebNMS Framework Server Credential Disclosure · Jul 4, 2016
Nuclei: CVE-2016-6601 · Aug 21, 2022
ExploitDB: EDB-40229 · Aug 10, 2016
This CVE's current EPSS score of 0.9741 is in the 100th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/138244/WebNMS-Framework-5.2-SP1-Traversal-Weak-Obfuscation-User-Impersonation.html
ExploitThird Party Advisory
blogs.securiteam.com / index.php/archives/2712
ExploitTechnical DescriptionThird Party Advisory
seclists.org / fulldisclosure/2016/Aug/54
ExploitMailing List
forums.webnms.com / topic/recent-vulnerabilities-in-webnms-and-how-to-protect-the-server-against-them
github.com / pedrib/PoC/blob/master/advisories/webnms-5.2-sp1-pwn.txt
Exploit
exploit-db.com / exploits/40229
ExploitThird Party Advisory
rapid7.com / db/modules/auxiliary/admin/http/webnms_cred_disclosure
Third Party Advisory
rapid7.com / db/modules/auxiliary/admin/http/webnms_file_download
Third Party Advisory
securityfocus.com / archive/1/539159/100/0/threaded
securityfocus.com / bid/92402
Third Party AdvisoryVDB Entry