September 2026 Patch TuesdayMSRC-2026-09-developer-tools-release-notesNormal patch window

Microsoft · MSRC-2026-09-developer-tools-release-notes

Linked CVE review

Deploy Microsoft Developer Tools update for Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10)

Linked CVEs
1
Confirmed exploited
0
PoC or lab evidence
1
Maximum CVSS
7.5
Evidence is kept separate

Confirmed exploitation, public exploit material, EPSS probability and CVSS severity answer different questions. “No confirmation recorded” means the checked sources do not currently confirm exploitation. It is not proof that exploitation has not occurred.

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1 of 1 linked CVEs shown
Confirmed exploitedCVSS above 9.0
CVE and descriptionSeverityExploit realityForecast and accessRemediation
CVE-2025-70873 PoC or lab evidence
An information disclosure issue in the zipfileInflate function in the zipfile extension in SQLite v3.51.1 and earlier allows attackers to obtain heap memory via supplying a crafted ZIP file

An information disclosure issue in the zipfileInflate function in the zipfile extension in SQLite v3.51.1 and earlier allows attackers to obtain heap memory via supplying a crafted ZIP file.

7.5 · CVSS 3.1 · HighSource: CISA ADPNo confirmation recordedNo CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.Public exploit referencedA structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.EPSS: 0.30% · 20.9th percentileForecast date: 2026-10-08NETWORK · LOW complexity · NONE privileges · NONE user interactionWithin 7 daysHigh technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.Patch available. For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/