Dashboard / CVE-2026-54121

CVE-2026-54121

HIGH 15 PoCs
MEDIUM Priority: 0.07 BB Relevance: 78/100
Published: 2026-07-14 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: High
A: High

Description

Improper authorization in Active Directory Certificate Services (AD CS) allows an authorized attacker to elevate privileges over a network.

Weakness Classification (1)

Affected Software (36)

VendorProductVersion
Microsoft Windows 10 Version 1607 10.0.14393.0 < 10.0.14393.9339
Microsoft Windows 10 Version 1607 10.0.14393.0 < 10.0.14393.9339
Microsoft Windows 10 Version 1809 10.0.17763.0 < 10.0.17763.9020
Microsoft Windows 10 Version 1809 10.0.17763.0 < 10.0.17763.9020
Microsoft Windows Server 2012 6.2.9200.0 < 6.2.9200.26226
Microsoft Windows Server 2012 6.2.9200.0 < 6.2.9200.26226
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 < 6.2.9200.26226
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 < 6.2.9200.26226
Microsoft Windows Server 2012 R2 6.3.9600.0 < 6.3.9600.23291
Microsoft Windows Server 2012 R2 6.3.9600.0 < 6.3.9600.23291
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 < 6.3.9600.23291
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 < 6.3.9600.23291
Microsoft Windows Server 2016 10.0.14393.0 < 10.0.14393.9339
Microsoft Windows Server 2016 10.0.14393.0 < 10.0.14393.9339
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 < 10.0.14393.9339
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 < 10.0.14393.9339
Microsoft Windows Server 2019 10.0.17763.0 < 10.0.17763.9020
Microsoft Windows Server 2019 10.0.17763.0 < 10.0.17763.9020
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 < 10.0.17763.9020
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 < 10.0.17763.9020
Microsoft Windows Server 2022 10.0.20348.0 < 10.0.20348.5386
Microsoft Windows Server 2022 10.0.20348.0 < 10.0.20348.5386
Microsoft Windows Server 2025 10.0.26100.0 < 10.0.26100.33158
Microsoft Windows Server 2025 10.0.26100.0 < 10.0.26100.33158
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 < 10.0.26100.33158
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 < 10.0.26100.33158
microsoft windows_10_1607 < 10.0.14393.9339
microsoft windows_10_1607 < 10.0.14393.9339
microsoft windows_10_1809 < 10.0.17763.9020
microsoft windows_10_1809 < 10.0.17763.9020
Showing 30 of 36 entries

References & Advisories (1)

Proof of Concept (15)

★ 338
https://github.com/aniqfakhrul/CVE-2026-54121
nomi-sec
★ 266
https://github.com/ZeroDayEvil/CVE-2026-54121-Certighost
nomi-sec
★ 30
https://github.com/tc4dy/CVE-2026-54121-PoC-Exploit
nomi-sec
★ 11
https://github.com/marcgoam/CVE-2026-54121-CertiGhost
nomi-sec
★ 4
https://github.com/nafiez/Metasploit-CVE-2026-54121-Certighost
nomi-sec
★ 2
https://github.com/0xredash/CVE-2026-54121
nomi-sec
★ 1
https://github.com/ChPratik/CVE-2026-54121
nomi-sec
★ 1
https://github.com/KrakenEU/CVE-2026-54121-CertiGhost
nomi-sec
—
https://github.com/HORKimhab/CVE-2026-54121
nomi-sec
—
https://github.com/GlendonNotGlen/certighost-cve-2026-54121-slides
nomi-sec
—
https://github.com/AtlasVector/Certighost-CVE-2026-54121
nomi-sec
—
https://github.com/sam00/POC-CVE-2026-54121-Certighost
nomi-sec
—
https://github.com/L0u7r3/certighost
nomi-sec
—
https://github.com/ushst/CVE-2026-54121-adcs-chase-nxc
nomi-sec
—
https://github.com/AnubisRedTeam/CVE-2026-54121-Certighost
nomi-sec

Bug Bounty Relevance

78 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction
✓ PoC available (15)

CVSS Score

8.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

EPSS — Exploitation Probability

0.78%
Raw Score 0.007780
Percentile 55.7%
Date 2026-10-28

Intelligence Sources

mitre ref →

External Links