CVE-2026-69550: Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information over a net

Q: How do I fix CVE-2026-69550?

windows app: upgrade to 11.3.9. Exact commands for each OS are on this page.

Q: Is CVE-2026-69550 being exploited?

CVE-2026-69550 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-2026-69550 affect?

CVE-2026-69550 affects windows app. Severity is medium (CVSS 6.5). Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.

Q: How urgent is CVE-2026-69550?

Priority 43/100. On your watchlist

This month

MEDIUM 6.5WATCHLISTUPGRADE

CVE-2026-69550 is a medium-severity flaw (CVSS 6.5) affecting windows app. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-126, CWE-125
Published	2026-08-19
Last modified	2026-08-27

Publisher (CNA): Microsoft Corporation · Vendor: microsoft

Last updated 2026-08-27 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-19 22:17 UTCPublished CVE record published
2026-08-27 17:19 UTCUpdated Record last modified

microsoft windows app UPGRADE

Affected: < 11.3.9

Fixed in: 11.3.9

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 11.3.9 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade windows-app

Note

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

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-2026-69550?

windows app: upgrade to 11.3.9. Exact commands for each OS are on this page.

Is CVE-2026-69550 being exploited?

CVE-2026-69550 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-2026-69550 affect?

CVE-2026-69550 affects windows app. Severity is medium (CVSS 6.5). Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.

How urgent is CVE-2026-69550?

Priority 43/100. On your watchlist

Software pages

Windows vulnerabilities · WinRM and RDP vulnerabilities

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References

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