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CVE-2018-16494

27
FAUCET Score

CVE-2018-16494 describes an insecure default umask setting in Versa Networks Versa Operating System (VOS) that allows authenticated users to gain unauthorized access to newly created files and directories. This vulnerability carries a high CVSS score of 8.8, indicating that it can be exploited remotely with low complexity by a low-privileged attacker, potentially leading to arbitrary read, write, or execution of files. Despite its high severity, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 16.1r2s11CPE matchmatch criteria
cpe:2.3:o:versa-networks:versa_operating_system:*:*:*:*:*:*:*:*
>= 20.2.0, < 20.2.2CPE matchmatch criteria
cpe:2.3:o:versa-networks:versa_operating_system:*:*:*:*:*:*:*:*
>= 21.1.0, < 21.1.1CPE matchmatch criteria
cpe:2.3:o:versa-networks:versa_operating_system:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.92%
Probability of exploitation in next 30 days
EPSS Percentile
77.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0192 is in the 76th percentile among its peer group of 17,822 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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

hackerone.com / reports/1168191
Third Party Advisory