Vulnerability · CVE-2025-53791
Improper access control in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.
Published Sep 5, 2025 · catalog updated Feb 20, 2026 · Microsoft Microsoft Edge (Chromium-based)
Last checked Oct 26, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2025-53791. EPSS is 0.41%. Act only if a listed version of Microsoft Microsoft Edge (Chromium-based) is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2026-58597 · Medium
- CVE-2025-62223 · Medium
- CVE-2025-60711 · Medium
- CVE-2025-47967 · Medium
- CVE-2025-47963 · Medium
- Severity
- Medium4.7
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.41%
- Remediation
- Version ranges on file
- Affected products
- vendor Microsoft Microsoft Edge (Chromium-based) 1.0.0.0 <140.0.3485.54
Improper access control in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor Microsoft Microsoft Edge (Chromium-based) 1.0.0.0 <140.0.3485.541.0.0.0 <140.0.3485.54
How to fix CVE-2025-53791
Upgrade
CVE-2025-53791 lists a fix boundary at 140.0.3485.54. Compare the installed build with that boundary before you change production.
Version check
Seen in 1.0.0.0 <140.0.3485.54
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2025-53791. EPSS is 0.41%. Act only if a listed version of Microsoft Microsoft Edge (Chromium-based) is installed.
Which versions are affected?
Compare what you have installed with Microsoft Microsoft Edge (Chromium-based) 1.0.0.0 <140.0.3485.54 1.0.0.0 <140.0.3485.54. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.41%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Sep 5, 2025 · EUVD
Detected
Improper access control in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.
Feb 20, 2026 · EUVD
Updated
Improper access control in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.
Sources
- CVE.orgVulnerability recordCVE-2025-53791
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-53791
30-day exploitation probability 0.41%
first.org - EUVDVulnerability recordEUVD-2025-27047
Improper access control in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Oct 26, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSOct 23, 2026
- CVE.orgOct 22, 2026
- EUVDOct 22, 2026