September 2026 Patch TuesdayKB5002644Normal patch window

Microsoft · KB5002644

Linked CVE review

Deploy Microsoft Microsoft Office security update KB5002644

Linked CVEs
2
Confirmed exploited
0
PoC or lab evidence
0
Maximum CVSS
8.8
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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2 of 2 linked CVEs shown
Confirmed exploitedCVSS above 9.0
CVE and descriptionSeverityExploit realityForecast and accessRemediation
CVE-2026-81385 Scheduled assessment
Microsoft Office Publisher Remote Code Execution Vulnerability

Deserialization of untrusted data in Microsoft Office Publisher allows an unauthorized attacker to execute code over a network.

8.8 · CVSS 3.1 · HighSource: CNANo confirmation recordedNo CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.None recordedNo exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.EPSS: 1.29% · 69.3th percentileForecast date: 2026-10-08NETWORK · LOW complexity · NONE privileges · REQUIRED user interactionWithin 7 daysHigh technical severity; prioritise exposed affected systems while verifying vendor guidance.Patch available. An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
CVE-2026-69742 Scheduled assessment
Microsoft Office Publisher Remote Code Execution Vulnerability

Integer overflow or wraparound in Microsoft Office Publisher allows an unauthorized attacker to execute code over a network.

8.8 · CVSS 3.1 · HighSource: CNANo confirmation recordedNo CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.None recordedNo exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.EPSS: 0.82% · 55.9th percentileForecast date: 2026-10-08NETWORK · LOW complexity · NONE privileges · REQUIRED user interactionWithin 7 daysHigh technical severity; prioritise exposed affected systems while verifying vendor guidance.Patch available. An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.