What is CVE-2026-58596?

CVE-2026-58596 is a high-severity vulnerability in Microsoft Edge (Chromium-based), classified under Untrusted Pointer Dereference. CVSS score: 8.3/10. Published 2026-07-12.

How severe is CVE-2026-58596?

High severity. CVSS v3 base score is 8.3 out of 10.

Vulnerability in Microsoft Edge (Chromium-based)

CVE-2026-58596

Untrusted pointer dereference in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges over a network.

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H.

Affected products

Microsoft Edge (Chromium-based) — versions 1.0.0.0

Weakness classification (CWE)

CWE-822 — Untrusted Pointer Dereference

References

Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-58596?: CVE-2026-58596 is a high-severity vulnerability in Microsoft Edge (Chromium-based), classified under Untrusted Pointer Dereference. CVSS score: 8.3/10. Published 2026-07-12.
How severe is CVE-2026-58596?: High severity. CVSS v3 base score is 8.3 out of 10.