5.4

CVE-2026-62904: microsoft edge_chromium Incorrect Authorization

CVSS: 5.4v3.1MediumAnalyzed
Published 28-08-2026Last modified 08-10-2026
Open JSON

Vulnerability summary

CVE-2026-62904 is a medium (CVSS 5.4) Incorrect Authorization vulnerability in microsoft edge_chromium. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 31.7% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.39%
0%100%
Low · +0.11 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 28-08-2026
    PublishedVulnerability first disclosed.
  2. 08-10-2026
    Last modifiedVulnerability information updated.

Description

Incorrect authorization in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.39%

Chance of exploitation in the next 30 days

Percentile

32%

Versus all other CVEs

30-day change

+0.11 pp

From 0.28% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.39%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Microsoft7 products

1 vendor · 7 products

References

1 links