CVE-2026-68821: Improper privilege management in Windows Package Manager allows an authorized attacker to elevate privileges l

Q: How do I fix CVE-2026-68821?

app installer: upgrade to 1.29.280. Exact commands for each OS are on this page.

Q: Is CVE-2026-68821 being exploited?

CVE-2026-68821 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-68821 affect?

CVE-2026-68821 affects app installer. Severity is high (CVSS 7.3). Improper privilege management in Windows Package Manager allows an authorized attacker to elevate privileges locally.

Q: How urgent is CVE-2026-68821?

Priority 37/100. High severity; On your watchlist

Routine

HIGH 7.3WATCHLISTUPGRADE

CVE-2026-68821 is a high-severity flaw (CVSS 7.3) affecting app installer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

High severity
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.3 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.3% (top 76%)
CISA exploited list	No
Weakness	CWE-269
Published	2026-08-11
Last modified	2026-10-24

Publisher (CNA): Microsoft Corporation · Vendor: microsoft

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-11 17:19 UTCPublished CVE record published
2026-10-24 16:10 UTCUpdated Record last modified

microsoft app installer UPGRADE

Affected: < 1.29.280

Fixed in: 1.29.280

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy app-installer || rpm -q app-installer || app-installer --version

2. UPGRADE to 1.29.280 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade app-installer

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade app-installer

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Fedora 46 · clementine · FIXED · 1.4.2-1.fc46 · FEDORA-2026-3e748ef4d3 · source

sudo dnf upgrade --advisory=FEDORA-2026-3e748ef4d3

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-68821?

app installer: upgrade to 1.29.280. Exact commands for each OS are on this page.

Is CVE-2026-68821 being exploited?

CVE-2026-68821 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-68821 affect?

CVE-2026-68821 affects app installer. Severity is high (CVSS 7.3). Improper privilege management in Windows Package Manager allows an authorized attacker to elevate privileges locally.

How urgent is CVE-2026-68821?

Priority 37/100. High severity; On your watchlist

Software pages

Windows vulnerabilities

References

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