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CVE-2016-10821

21
FAUCET Score

CVE-2016-10821 describes a vulnerability in cPanel versions prior to 55.9999.141 where the Scripts/addpop utility exposes a command-line password in process lists. This medium-severity vulnerability (CVSS 6.5) allows an authenticated attacker to remotely access sensitive information, specifically passwords, with low attack complexity. While there is no evidence of active exploitation, public exploit code, or significant community discussion, the potential for unauthorized credential disclosure remains a concern for affected systems.

Impacted Technologies

VendorProductVersion(s)CPE
>= 11.50.0.4, < 11.50.5.2CPE matchmatch criteria
cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:*
>= 11.52.0.5, < 11.52.4.1CPE matchmatch criteria
cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:*
>= 11.54.0.0, < 11.54.0.20CPE matchmatch criteria
cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.09%
Probability of exploitation in next 30 days
EPSS Percentile
62.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0109 is in the 75th percentile among its peer group of 21,977 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

documentation.cpanel.net / display/CL/56+Change+Log
ProductRelease Notes
news.cpanel.com / cpanel-tsr-2016-0002-full-disclosure
Vendor Advisory