IT SBIT Services
Schneeberger
DEEN
Patch Tuesday

Patch Tuesday May 2025 – known issues, zero-days and what to do

On 13 May 2025 Microsoft fixed 80 vulnerabilities – critical: 11, already exploited (zero-days): 5. Known issues with the updates: none known.

80vulnerabilities
11critical
5zero-days
0known issues

What to do now

  • Zero-days first: 5 vulnerabilities are already being exploited (CVE-2025-30400, CVE-2025-32701, CVE-2025-32706) – install the updates as soon as possible, starting with servers and exposed systems.
  • 11 critical vulnerabilities (mainly Windows, Microsoft Office, Developer tools (.NET, Visual Studio …)) – roll out promptly after a short test.
  • No issues are known so far with the updates of this month – test and roll out as usual.

Zero-days: already exploited

Critical vulnerabilities (11)

Show 5 more critical vulnerabilities

Updates (KB) of this month

KB numbers according to the Security Update Guide; known issues from our update issues – click a KB to see all its entries.

UpdateProduct familyVulnerabilitiesKnown issues
KB5058411Windows39none known
KB5058392Windows38none known
KB5058385Windows38none known
KB5058500Windows37none known
KB5058379Windows34none known
KB5058405Windows34none known
KB5058384Windows9none known
KB5058497Windows8none known
KB5002707Microsoft Office7none known
KB5002717Microsoft Office7none known
KB5002722Microsoft Office4none known
KB5002708Microsoft Office4none known
Show 14 more updates
UpdateProduct familyVulnerabilitiesKnown issues
KB5002709Microsoft Office4none known
KB5002711Microsoft Office2none known
KB5058383Windows2none known
KB5058449Windows2none known
KB5059200Developer tools (.NET, Visual Studio …)1none known
KB5059201Developer tools (.NET, Visual Studio …)1none known
KB5061258Windows1none known
KB5002712Microsoft Office1none known
KB5002706Microsoft Office1none known
KB5002716Microsoft Office1none known
KB5002695Microsoft Office1none known
KB5058387Windows1none known
KB5058429Windows1none known
KB5058430Windows1none known

Known issues with the updates

No issues are known so far with the updates of this month.

By product family

  • Windows44
  • Microsoft Office17
  • Developer tools (.NET, Visual Studio …)5
  • Azure5
  • System Center and Defender3
  • Microsoft Dynamics3
  • Browser (Edge)2
  • Apps1

More about this month

Where the information comes from

Fixed vulnerabilities, severity, zero-days and KB numbers come from the official Microsoft Security Update Guide (MSRC); known issues, workarounds and dated changes from our update issues, each with its source. “What to do now” is derived from this data using fixed rules, without AI.

Affected? We can help.

We check whether your systems are affected, apply workarounds properly and plan for dated changes in good time.