Patch tracker / KB5061059
KB5061059: Windows Server 2012 Security Update (June 2025)
KB5061059 is a High security update for Windows Server 2012, released 2025-06-10. It closes 20 CVEs with a maximum CVSS of 8.8. At least one of them is actively exploited (CISA KEV), so it is urgent, and Microsoft lists 1 known issue: test it before broad deployment. The most likely of them to be attacked is CVE-2025-49735, which FIRST.org rates at 87% probability of exploitation in the next 30 days.
Before you deploy: Microsoft lists 1 known issue for this update.
Our data comes from Microsoft, CISA and other public sources, and it can be wrong or out of date. If you are unsure, check the linked source before you act, and tell us when we are wrong so we can fix it.
Update summary
Fixes 20 CVEs. At least one is actively exploited (CISA KEV). Most severe CVSS 8.8 (High). EPSS exploit probability up to 87%. Among the top 5% of tracked Microsoft updates by EPSS exploit probability.
A newer security update for Windows Server 2012 has shipped since this one: KB5126835 (2026-10-13). For cumulative update families the newer package includes these fixes, so installing that one is usually the shorter path. Verify against your own update rings before you skip this package.
Microsoft documents 1 known issue with this update.
- We are currently not aware of any issues with this update. For the most up-to-date information about known issues for Windows Server 2012, please go...
KB5061059 is a smaller July 2025 servicing package for Windows Server 2019 and Windows Server 2022, fixing twenty CVEs that mix the month's CVE-2025-32712 cluster with a newer group including CVE-2025-33064 and CVE-2025-33075. The worst remains High severity at CVSS 8.8 with an 82 percent EPSS score and a CISA KEV listing, so the smaller CVE count does not translate to lower risk. This looks like a targeted or optional component update layered on top of the main rollup.
Do this: Confirm KB5061059 is installed alongside the main July 2025 cumulative update on affected servers, not in place of it.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for KB5061059
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for KB5061059
- Released
- 2025-07-08
- Last changed
- 2026-09-26
- Changes tracked
- 7
Senserva began recording day-to-day change history on 2026-07-07, and refreshes it several times a day. Release dates are historical where Microsoft publishes them; revision history is tracked from that date forward, so it does not include changes made before then.
Check if KB5061059 is installed
Elevated PowerShell. No output means it is not installed.
Known issues, from Microsoft
Quoted from Microsoft's support article for KB5061059 (checked 2026-10-10). Microsoft lists 1 known issue. Verify against the article before acting.
We are currently not aware of any issues with this update. For the most up-to-date information about known issues for Windows Server 2012, please go to the Windows release health dashboard .
CVEs fixed by this update
Sorted exploited-first, then by CVSS. Every CVE links to its Senserva page with the full risk facts, references, and a ready-to-paste AI prompt.
| CVE | Severity | CVSS | EPSS | Exploited |
|---|---|---|---|---|
| CVE-2025-33053 | High | 8.8 | 87% | KEV |
| CVE-2025-33073 | High | 8.8 | 87% | KEV |
| CVE-2025-33064 | High | 8.8 | 87% | No |
| CVE-2025-33066 | High | 8.8 | 87% | No |
| CVE-2025-33070 | High | 8.1 | 87% | No |
| CVE-2025-33071 | High | 8.1 | 87% | No |
| CVE-2025-49735 | High | 8.1 | 87% | No |
| CVE-2025-32712 | High | 7.8 | 87% | No |
| CVE-2025-32713 | High | 7.8 | 87% | No |
| CVE-2025-32714 | High | 7.8 | 87% | No |
| CVE-2025-32716 | High | 7.8 | 87% | No |
| CVE-2025-32718 | High | 7.8 | 87% | No |
| CVE-2025-33075 | High | 7.8 | 87% | No |
| CVE-2025-32724 | High | 7.5 | 87% | No |
| CVE-2025-33056 | High | 7.5 | 87% | No |
| CVE-2025-3052 | Medium | 6.7 | 87% | No |
| CVE-2025-32715 | Medium | 6.5 | 87% | No |
| CVE-2025-33057 | Medium | 6.5 | 87% | No |
| CVE-2025-32722 | Medium | 5.5 | 87% | No |
| CVE-2025-47160 | Medium | 5.4 | 87% | No |
Scope and sources
- Affected products
- Also released in June 2025
KB5060118
39 CVEs · High · exploitedKB5060525
39 CVEs · High · exploitedKB5060526
40 CVEs · High · exploitedKB5060531
39 CVEs · High · exploitedKB5060533
34 CVEs · High · exploitedKB5060841
39 CVEs · High · exploitedKB5060842
40 CVEs · High · exploitedKB5060996
1 CVE · High · exploitedThe full month, summarized: Microsoft Patch Tuesday.
- Authoritative references
See this and every Microsoft update ranked by real-world risk on the Microsoft Patch Tracker.