CVE-2025-21396

⚠️ high

🔍 Scan for this CVE

Missing authorization in Microsoft Account allows an unauthorized attacker to elevate privileges over a network.

CVSS Score

8.2

High

EPSS Score

2.8

Exploit Probability

Published Date

2025-01-29

First Seen: 2026-01-05

This CVE is High Risk - more severe than 79.4% of all 340,620 vulnerabilities in our database.

#70,006

Top 25% most severe

Severity Percentile

🔍 Exploitation Status

None

No known exploits

⚙️ Automatable

YES

Can be exploited automatically

💥 Technical Impact

Partial

Limited system impact

SSVC data provided by CISA

Last Modified 2025-02-12

Source NVD 🔗

CVSS Vector 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

CWE IDs (Weakness Types)

CWE-862

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-56165	⛔ critical	9.8	0.7	Heap-based buffer overflow in Microsoft Account allows an unauthorized attacker to execute code over a network.	2026-07-24
CVE-2026-21264	⛔ critical	9.3	0.1	Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Account allows an unau...	2026-01-22

📦 Affected Products 1