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Vulnerability

CVE-2026-81963

CVE identifier for a Windows Update Stack elevation-of-privilege vulnerability, patched by Microsoft in September 2026 as an actively exploited zero-day.

Known aliases

  • Windows Update Stack Elevation of Privilege Vulnerability

Current stories

securityOne report1 publisher

Office 2016 and 2019 still get near-monthly Microsoft patches a year after support ended

Microsoft has shipped security updates almost monthly for Office 2016 and 2019 since their end of support, Help Net Security reported. The forecast's author argues the old suites are probably not tested against Microsoft's other updates, so the compatibility risk sits with the teams still running them.

Reality

Evidence40
Adoption
Not scored
Hype gap+10
Incentives
Not scored
Confidence45
buildOne report1 publisher

Two exploited Windows privilege escalations should go first in September's record Patch Tuesday

Microsoft's record September release fixed up to 997 CVEs, including two local escalations to SYSTEM that attackers used before the patch shipped. A 7.8 score understates the step that turns a phishing foothold into control of the machine, so both go ahead of the 9.8 remote flaws.

Publishers:dev.to

Reality

Evidence48
Adoption
Not scored
Hype gap+5
Incentives
Not scored
Confidence42
buildOne report1 publisher

ZoomEye's fingerprint for Cisco's exploited FMC bypass returned zero hosts

A single September 2026 KEV batch produced 1,262,273 GitLab matches and nothing at all for Cisco Secure Firewall Management Center, because the console holding one of the two 10.0 bugs is the one passive scanning cannot fingerprint.

Publishers:dev.to

Reality

Evidence45
Adoption55
Hype gap+10
Incentives70
Confidence50
securityOne report1 publisher

Microsoft's record 964-CVE Patch Tuesday includes two exploited zero-days

Tenable's tally for September 2026 is the largest Patch Tuesday on record. It shipped with two bugs already exploited in the wild. The other 962 sit on the calendar as a scheduling problem, and the severity ratings do not sort them by urgency.

Publishers:tenable.com

Reality

Evidence55
Adoption25
Hype gap+20
Incentives60
Confidence50