No exploitation reportedFix available

CVE-2016-10809

Q: Is CVE-2016-10809 actively exploited?

Active exploitation of CVE-2016-10809 has not been confirmed. Its EPSS score was 1.3% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2016-10809?

CVE-2016-10809 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2019-08-07
Fixed in57.9999.54 · 56.0.15 · 11.54.0.24 · 11.52.6.1 · 11.50.6.2
WeaknessCWE-200

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

In cPanel before 57.9999.54, /scripts/checkinfopages exposed a TTY to an unprivileged process (SEC-114).

Timeline

dates in UTC

2019-08-0713:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2016-10809?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2016-10809?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

cPanel

Branch	Affected	Fixed in	Source
57.9999	≥ 57.9999.48, < 57.9999.54	57.9999.54	NVD
56.0	≥ 55.9999.61, < 56.0.15	56.0.15	NVD
11.54	≥ 11.54.0.0, < 11.54.0.24	11.54.0.24	NVD
11.x	≥ 11.51.9999.98, < 11.52.6.1	11.52.6.1	NVD
11.50	≥ 11.50.0.4, < 11.50.6.2	11.50.6.2	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update cPanel to 57.9999.54 · 56.0.15 · 11.54.0.24 · 11.52.6.1 · 11.50.6.2

Advisories and patches

documentation.cpanel.netRelease Notes · Vendor Advisory
news.cpanel.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.08.8read 2026-10-23
NVDCVSS 2.09read 2026-10-23
NVDweakness (CWE)CWE-200read 2026-10-23
FIRST EPSSEPSS score1.3 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: 2019-08-07
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2016-10809?

In cPanel before 57.9999.54, /scripts/checkinfopages exposed a TTY to an unprivileged process (SEC-114).

Is CVE-2016-10809 actively exploited?

Active exploitation of CVE-2016-10809 has not been confirmed. Its EPSS score was 1.3% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2016-10809?

CVE-2016-10809 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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