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VulnerabilityPublished Updated

CVE-2026-68821: Microsoft App Installer · Improper Privilege Management

Affects Microsoft App InstallerSource CVE Database V5

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Not known to be exploited · CVSS 7.3 High : upgrade to 1.29.279 soon.

Data as of 9 Nov 2026, 23:24 UTC

CVSS 3.1 base score
7.3High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (microsoft)CVSS 3.17.3
EPSS
0.3% chance of exploitation in 30 days – higher than 25% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.29.279
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.

What to do

Upgrade Microsoft App Installer to 1.29.279.

Affected software

ProductAffectedFixed in
MicrosoftApp InstallerAffected
  • >=1.0.0.0 <1.29.279
Fixed in
  • 1.29.279

Description

Improper privilege management in Windows Package Manager allows an authorized attacker to elevate privileges locally.

References

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