CVE-2026-88077

Integer overflow or wraparound in Microsoft Edge (Chromium-based) allows an unauthorized attacker…

Risk score: 58/100
CVSS: 8.8 v3.1
Published: 29 Oct 2026

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What to know

What it is: Integer overflow or wraparound in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges over a network.
Affected: See advisory
Fix: Apply the vendor's security update; see the linked advisory.
Exploitation: No known exploitation

Why it is Yellow

CVSS 8.8 high
Remotely exploitable without logging in

References

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

Original description

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

Last activity 29 Oct 2026. Patch Forecast updates every hour.