Vulnerability · Published Jul 3, 2026 · Assigned by microsoft
CVE-2026-58282Microsoft Edge (Chromium-based) Spoofing Vulnerability
High 8.1
In plain English
A high-severity improper access control in Microsoft Edge (Chromium-based) from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.4%top 63.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Improper access control in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft Edge (Chromium-based) | 1.0.0.0 – before 150.0.4078.48 |
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:L/E:U/RL:O/RC:C
References
- Microsoft Edge (Chromium-based) Spoofing Vulnerability vendor-advisory, patch