SecurityOnlineDo Son
Low priv users hijack the DCs via CVE-2026-54121 flaw
Part of the CVE-2026-54121 story · since 28 Jul
- Tue 28 Jul, 17:41 UTC. Dark Reading, first report. Microsoft addresses critical AD Cert Services bug CVE-2026-54121.
- Wed 29 Jul, 14:42 UTC. SecurityOnline, its first report on the story. Low priv users hijack the DCs via CVE-2026-54121 flaw. This article, 2nd of 2.
The content discusses the vulnerability CVE-2026-54121 affecting Microsoft Active Directory Certificate Services (AD CS), which allows low-privileged domain users to impersonate a Domain Controller, leading to potential domain compromise. This vulnerability, with a CVSS score of 8.8, was patched in July 2026. Key points include the details of how the attack works, the implications of the vulnerability, and the importance of updating affected systems to mitigate risks. The article emphasizes the need for applying security updates, monitoring certificate requests, and adjusting permissions to enhance security.
How the story developed
2 articles from 2 outlets since 28 Jul. Quiet since 29 Jul. This was the 2nd report, 21 hours after the first.
- Tue 28 Jul, 17:41 UTC. Dark Reading, first report. Microsoft addresses critical AD Cert Services bug CVE-2026-54121.
- Wed 29 Jul, 14:42 UTC. SecurityOnline, its first report on the story. Low priv users hijack the DCs via CVE-2026-54121 flaw. This article, 2nd of 2.
- CVE not in KEV
- No CVE
- Larger: an outlet’s first report
- Coverage over time
- Quiet time, folded
Show all 2 articles as a listHide the list
- Tue 28 JulDay 01
- Microsoft addresses critical AD Cert Services bug CVE-2026-5412117:41 · Dark Reading · First report
- Wed 29 JulDay 11
- Low priv users hijack the DCs via CVE-2026-54121 flaw14:42 · SecurityOnline · This article, 2nd of 2