Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

Summary

Integer overflow or wraparound in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges over a network.

Remediation

1. Inventory every Microsoft Microsoft Edge (Chromium-based) deployment, including staging.
2. Upgrade Microsoft Microsoft Edge (Chromium-based) to 154.0.4258.62.
3. Confirm the running version after the upgrade.

References

• Patchhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88077