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Recorded 25 Oct 2026 at 17:12 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position. See the latest record.

CVEMicrosoft Security Response Center

Microsoft SQL Server Remote Code Execution Vulnerability

Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.

Cite this recorded revision

What it said

CVE
CVE-2026-83945
Severity
Important
CVSS base score
6.6
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Impact
Remote Code Execution
Exploitation detected
Not reported by MSRC
Publicly disclosed
No
Exploitability
Exploitation Unlikely
Component
SQL Server
Weakness
CWE-122: Heap-based Buffer Overflow
Issued by
Microsoft
Customer action
Required: apply the update
Affected products
Microsoft SQL Server 2022 for x64-based Systems (CU27), Microsoft SQL Server 2022 for x64-based Systems (GDR), Microsoft SQL Server 2025 for x64-based Systems (CU8), Microsoft SQL Server 2025 for x64-based Systems (CU9), Microsoft SQL Server 2025 for x64-based Systems (GDR)
Updates that fix it
KB5126934: Microsoft SQL Server 2022 for x64-based Systems (CU27) (restart required); KB5126967: Microsoft SQL Server 2025 for x64-based Systems (CU9) (restart required); KB5128492: Microsoft SQL Server 2025 for x64-based Systems (GDR) (restart required); KB5128493: Microsoft SQL Server 2022 for x64-based Systems (GDR) (restart required)
CISA KEV
Not listed in the collected catalog
EPSS
0.6%; scored 25 Oct 2026
Public exploit code
No Nuclei template listed
Published
13 Oct 2026 07:00 UTC
Last revised
13 Oct 2026 07:00 UTC
Revision note
Information published.

Source evidence when recorded

Microsoft security releases
Complete at observationRead 25 Oct 2026 at 17:11 UTC
CISA KEV
Complete at observationRead 25 Oct 2026 at 17:11 UTC
FIRST EPSS
Complete at observationRead 25 Oct 2026 at 17:11 UTC
Public exploit code
Complete at observationRead 25 Oct 2026 at 17:11 UTC

Coverage describes the sources at this observation. A complete read then does not establish their current position.

What changed

First observed 14 Oct 2026
  1. 25 Oct 2026 · 17:12:51 UTC EPSS0.4%; scored 24 Oct 2026 → 0.6%; scored 25 Oct 2026
  2. 25 Oct 2026 · 01:34:18 UTC EPSS0.4%; scored 23 Oct 2026 → 0.4%; scored 24 Oct 2026
  3. 23 Oct 2026 · 15:51:28 UTC EPSS0.4%; scored 22 Oct 2026 → 0.4%; scored 23 Oct 2026
  4. 23 Oct 2026 · 09:33:49 UTC Public exploit codeUnknown: exploit-code evidence is incomplete or retained → No Nuclei template listed
  5. 23 Oct 2026 · 09:33:49 UTC CISA KEVUnknown: catalog evidence is incomplete or retained → Not listed in the collected catalog
  6. 23 Oct 2026 · 09:33:49 UTC Source coverage: public-exploit-codeIncomplete → Current
  7. 23 Oct 2026 · 09:33:49 UTC Source coverage: first-epssIncomplete → Current
  8. 23 Oct 2026 · 09:33:49 UTC Source coverage: cisa-kevIncomplete → Current
  9. 23 Oct 2026 · 09:33:49 UTC Source coverage: msrc-cvrfIncomplete → Current
  10. 23 Oct 2026 · 08:31:50 UTC Public exploit codeNo Nuclei template listed → Unknown: exploit-code evidence is incomplete or retained
  11. 23 Oct 2026 · 08:31:50 UTC CISA KEVNot listed in the collected catalog → Unknown: catalog evidence is incomplete or retained
  12. 23 Oct 2026 · 08:31:50 UTC Source coverage: public-exploit-codeCurrent → Incomplete
Show 12 more recent changes
  1. 23 Oct 2026 · 08:31:50 UTCSource coverage: first-epss Current → Incomplete
  2. 23 Oct 2026 · 08:31:50 UTCSource coverage: cisa-kev Current → Incomplete
  3. 23 Oct 2026 · 08:31:50 UTCSource coverage: msrc-cvrf Current → Incomplete
  4. 22 Oct 2026 · 17:33:15 UTCEPSS 0.4%; scored 21 Oct 2026 → 0.4%; scored 22 Oct 2026
  5. 21 Oct 2026 · 21:47:24 UTCEPSS 0.4%; scored 20 Oct 2026 → 0.4%; scored 21 Oct 2026
  6. 20 Oct 2026 · 20:53:31 UTCEPSS 0.4%; scored 19 Oct 2026 → 0.4%; scored 20 Oct 2026
  7. 19 Oct 2026 · 15:12:40 UTCEPSS 0.4%; scored 18 Oct 2026 → 0.4%; scored 19 Oct 2026
  8. 18 Oct 2026 · 14:54:30 UTCEPSS 0.4%; scored 16 Oct 2026 → 0.4%; scored 18 Oct 2026
  9. 18 Oct 2026 · 14:54:30 UTCLink: October 2026 → /security?release=2026-Oct#cves
  10. 16 Oct 2026 · 16:13:25 UTCEPSS 0.4%; scored 15 Oct 2026 → 0.4%; scored 16 Oct 2026
  11. 15 Oct 2026 · 21:30:54 UTCEPSS 0.4%; scored 14 Oct 2026 → 0.4%; scored 15 Oct 2026
  12. 15 Oct 2026 · 01:07:54 UTCEPSS Not scored → 0.4%; scored 14 Oct 2026

The most recent 100 field changes are listed. Complete recorded revisions are kept separately.

Cite this recorded revision to keep the same title, summary, facts and links when the page changes.

A day selects the latest observation by the end of that UTC day; today's selection can change until midnight. History starts when this installation records it.

ChangeIntel

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Sources read 25 Oct 21:06 UTC · 271 of 271 readable · 269 fully read · documentation 464/464 current

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