Windows Server 2012
This version of Windows is no longer supported
Microsoft no longer issues security updates for Windows Server 2012. Devices running this version are exposed to unpatched vulnerabilities.
End of Life
1 KEV
Latest Release
KB Article
KB5101011
Build
4.8.4803.0
Released
2026-07-14
Age
17 days ago
CVEs Fixed
198
Exploited
1
1 KEV
Release Type
Patch Tuesday
End of Support
2023-10-10
Resources
Windows Server 2012
Security Information
July 2026 Security Update
•
2026-07-14
•
4.8.4803.0
•
Out of Support
Patch Tuesday
198 CVEs
1 KEV
Critical Risk
+63d
▼
63 days since previous release ·
Contains 1 actively exploited vulnerability
⚠️
Contains 1 actively exploited vulnerability
Recommendation: Update immediately — contains known-exploited vulnerabilities (CISA KEV)
CVEs (198)
CVE-2026-33xx
(1 CVE)
▼
CVE-2026-34xx
(1 CVE)
▼
CVE-2026-40xx
(2 CVEs)
▼
CVE-2026-42xx
(2 CVEs)
▼
CVE-2026-44xx
(1 CVE)
▼
CVE-2026-47xx
(2 CVEs)
▼
CVE-2026-48xx
(1 CVE)
▼
CVE-2026-49xx
(18 CVEs)
▼
CVE-2026-50xx
(110 CVEs)
▼
CVE-2026-50294
CVE-2026-50297
CVE-2026-50298
CVE-2026-50299
CVE-2026-50304
CVE-2026-50306
CVE-2026-50308
CVE-2026-50309
CVE-2026-50311
CVE-2026-50312
CVE-2026-50313
CVE-2026-50321
CVE-2026-50324
CVE-2026-50325
CVE-2026-50328
CVE-2026-50330
CVE-2026-50332
CVE-2026-50334
CVE-2026-50341
CVE-2026-50344
CVE-2026-50346
CVE-2026-50347
CVE-2026-50351
CVE-2026-50352
CVE-2026-50355
CVE-2026-50359
CVE-2026-50363
CVE-2026-50365
CVE-2026-50366
CVE-2026-50368
CVE-2026-50369
CVE-2026-50370
CVE-2026-50371
CVE-2026-50372
CVE-2026-50376
CVE-2026-50380
CVE-2026-50386
CVE-2026-50387
CVE-2026-50388
CVE-2026-50390
CVE-2026-50391
CVE-2026-50394
CVE-2026-50397
CVE-2026-50400
CVE-2026-50402
CVE-2026-50405
CVE-2026-50411
CVE-2026-50412
CVE-2026-50417
CVE-2026-50419
CVE-2026-50422
CVE-2026-50426
CVE-2026-50431
CVE-2026-50433
CVE-2026-50435
CVE-2026-50439
CVE-2026-50444
CVE-2026-50445
CVE-2026-50447
CVE-2026-50448
CVE-2026-50451
CVE-2026-50453
CVE-2026-50455
CVE-2026-50456
CVE-2026-50461
CVE-2026-50462
CVE-2026-50470
CVE-2026-50471
CVE-2026-50474
CVE-2026-50475
CVE-2026-50476
CVE-2026-50477
CVE-2026-50480
CVE-2026-50482
CVE-2026-50485
CVE-2026-50489
CVE-2026-50490
CVE-2026-50491
CVE-2026-50494
CVE-2026-50496
CVE-2026-50497
CVE-2026-50498
CVE-2026-50500
CVE-2026-50502
CVE-2026-50504
CVE-2026-50505
CVE-2026-50518
CVE-2026-50525
CVE-2026-50527
CVE-2026-50646
CVE-2026-50647
CVE-2026-50648
CVE-2026-50649
CVE-2026-50650
CVE-2026-50652
CVE-2026-50653
CVE-2026-50659
CVE-2026-50666
CVE-2026-50667
CVE-2026-50669
CVE-2026-50673
CVE-2026-50683
CVE-2026-50684
CVE-2026-50685
CVE-2026-50686
CVE-2026-50688
CVE-2026-50690
CVE-2026-50694
CVE-2026-50695
CVE-2026-50697
CVE-2026-54xx
(15 CVEs)
▼
CVE-2026-55xx
(2 CVEs)
▼
CVE-2026-56xx
(14 CVEs)
▼
CVE-2026-57xx
(12 CVEs)
▼
May 2026 Security Update
•
2026-05-12
•
4.8.9334.0 and 4.8.4802.0
•
Out of Support
Patch Tuesday
44 CVEs
+28d
▼
28 days since previous release ·
Addresses 44 security issues
ℹ️
Addresses 44 security issues
Recommendation: Update to stay secure — security fixes available
CVEs (44)
CVE-2026-21xx
(1 CVE)
▼
CVE-2026-32xx
(4 CVEs)
▼
CVE-2026-33xx
(3 CVEs)
▼
CVE-2026-34xx
(12 CVEs)
▼
CVE-2026-35xx
(8 CVEs)
▼
CVE-2026-40xx
(13 CVEs)
▼
CVE-2026-41xx
(2 CVEs)
▼
CVE-2026-42xx
(1 CVE)
▼
April 2026 Security Update
•
2026-04-14
•
4.8.4801.0
•
Out of Support
Patch Tuesday
63 CVEs
1 KEV
Critical Risk
+126d
▼
126 days since previous release ·
Contains 1 actively exploited vulnerability
⚠️
Contains 1 actively exploited vulnerability
Recommendation: Update immediately — contains known-exploited vulnerabilities (CISA KEV)
CVEs (63)
CVE-2026-23xx
(1 CVE)
▼
CVE-2026-25xx
(1 CVE)
▼
CVE-2026-26xx
(15 CVEs)
▼
CVE-2026-27xx
(17 CVEs)
▼
CVE-2026-32xx
(22 CVEs)
▼
CVE-2026-32068
CVE-2026-32070
CVE-2026-32073
CVE-2026-32075
CVE-2026-32077
CVE-2026-32082
CVE-2026-32083
CVE-2026-32084
CVE-2026-32086
CVE-2026-32087
CVE-2026-32093
CVE-2026-32150
CVE-2026-32151
CVE-2026-32156
CVE-2026-32157
CVE-2026-32183
⚑ CVE-2026-32202
CVE-2026-32212
CVE-2026-32214
CVE-2026-32217
CVE-2026-32225
CVE-2026-32226
CVE-2026-33xx
(7 CVEs)
▼
56 days since previous release ·
Addresses 12 security issues
ℹ️
Addresses 12 security issues
Recommendation: Update to stay secure — security fixes available
CVEs (12)
CVE-2025-54xx
(1 CVE)
▼
CVE-2025-62xx
(10 CVEs)
▼
CVE-2025-64xx
(1 CVE)
▼
October 2025 Security Update
•
2025-10-14
•
6.2.9200.25728
•
Out of Support
Patch Tuesday
52 CVEs
4 KEV
Critical Risk
▼
Contains 4 actively exploited vulnerabilities
⚠️
Contains 4 actively exploited vulnerabilities
Recommendation: Update immediately — contains known-exploited vulnerabilities (CISA KEV)
CVEs (52)
CVE-2016-95xx
(1 CVE)
▼
CVE-2025-24xx
(2 CVEs)
▼
CVE-2025-25xx
(1 CVE)
▼
CVE-2025-47xx
(1 CVE)
▼
CVE-2025-55xx
(8 CVEs)
▼
CVE-2025-58xx
(13 CVEs)
▼
CVE-2025-59xx
(26 CVEs)
▼
CVE-2025-59185
CVE-2025-59187
CVE-2025-59188
CVE-2025-59190
CVE-2025-59196
CVE-2025-59198
CVE-2025-59201
CVE-2025-59202
CVE-2025-59205
CVE-2025-59208
CVE-2025-59209
CVE-2025-59211
CVE-2025-59214
⚑ CVE-2025-59230
CVE-2025-59242
CVE-2025-59244
CVE-2025-59253
CVE-2025-59258
CVE-2025-59259
CVE-2025-59275
CVE-2025-59277
CVE-2025-59278
CVE-2025-59280
CVE-2025-59282
⚑ CVE-2025-59287
CVE-2025-59295