CVE-2025-53769: External control of file name or path in Windows Security App allows an authorized attacker to perform spoofin

Q: How do I fix CVE-2025-53769?

windows security app: upgrade to 1000.27840.0.1000. Exact commands for each OS are on this page.

Q: Is CVE-2025-53769 being exploited?

CVE-2025-53769 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-2025-53769 affect?

CVE-2025-53769 affects windows security app. Severity is medium (CVSS 5.5). External control of file name or path in Windows Security App allows an authorized attacker to perform spoofing locally.

Q: How urgent is CVE-2025-53769?

Priority 33/100. On your watchlist

Routine

MEDIUM 5.5WATCHLISTUPGRADE

CVE-2025-53769 is a medium-severity flaw (CVSS 5.5) affecting windows security app. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

External control of file name or path in Windows Security App allows an authorized attacker to perform spoofing locally.

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 66%)
CISA exploited list	No
Weakness	CWE-73
Published	2025-08-12
Last modified	2026-06-17

Publisher (CNA): Microsoft Corporation · Vendor: microsoft

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-08-12 18:15 UTCPublished CVE record published
2026-06-17 09:38 UTCUpdated Record last modified

microsoft windows security app UPGRADE

Affected: < 1000.27840.0.1000

Fixed in: 1000.27840.0.1000

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1000.27840.0.1000 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade windows-security-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-2025-53769?

windows security app: upgrade to 1000.27840.0.1000. Exact commands for each OS are on this page.

Is CVE-2025-53769 being exploited?

CVE-2025-53769 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-2025-53769 affect?

CVE-2025-53769 affects windows security app. Severity is medium (CVSS 5.5). External control of file name or path in Windows Security App allows an authorized attacker to perform spoofing locally.

How urgent is CVE-2025-53769?

Priority 33/100. On your watchlist

Software pages

Windows vulnerabilities

Related CVEs

CVE-2025-47956 MEDIUM 5.5 UPGRADE External control of file name or path in Windows Security App allows an authorized attacker to perform spoofin

References

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