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No exploitation reportedAwaiting NVD analysis

CVE-2026-88111

SQL Server Remote Code Execution Vulnerability

No exploitation reported by the sources we read.

  • Published2026-11-10
  • WeaknessCWE-122

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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

Timeline

dates in UTC
  1. 2026-11-1018:20CVE publishedCNA

Versions per branch

Products declared by the CNA

As microsoft, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • Microsoft SQL Server 2022 for x64-based Systems (CU27)

    platforms: x64-based Systems

    Affected
    • ≥ 16.0.4003.1, < 16.0.4315.2fixed in 16.0.4315.2custom
  • Microsoft SQL Server 2025 CU10

    platforms: x64-based Systems

    Affected
    • ≥ 17.0.4006.0, < 17.0.5045.3fixed in 17.0.5045.3custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-10

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-88111 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Metasploit modules
none listed
Metasploit Framework

Sources

  • CNACVSS 3.17.52026-11-10
  • NVDCVSS 3.17.5read 2026-11-10
  • CNAweakness (CWE)CWE-1222026-11-10
  • NVDweakness (CWE)CWE-122read 2026-11-10

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2026-11-10
Last Modified
2026-11-10
NVD status
Awaiting Analysis

Frequently asked questions

What is CVE-2026-88111?

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

Is CVE-2026-88111 actively exploited?

Active exploitation of CVE-2026-88111 has not been confirmed.

What is the CVSS score for CVE-2026-88111?

CVE-2026-88111 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

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