CVE-2026-48582

⛔ critical

🔍 Scan for this CVE

Missing authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.

CVSS Score

9.6

Critical

EPSS Score

0.4

Exploit Probability

Published Date

2026-06-19

First Seen: 2026-06-25

This CVE is Very High Risk - more severe than 90.2% of all 340,405 vulnerabilities in our database.

#33,325

Top 10% most severe

Severity Percentile

🔍 Exploitation Status

None

No known exploits

⚙️ Automatable

Requires human interaction

💥 Technical Impact

Total

Complete system compromise possible

SSVC data provided by CISA

Last Modified 2026-06-24

Source NVD 🔗

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

CWE IDs (Weakness Types)

CWE-862

📦 Affected Products 1

Vendor	Product	Status	Affected Versions
microsoft	exchange_online	Affected	v-

🔗 References 1

🔗 Related CVEs 3

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-56191	⛔ critical	10.0	0.7	Improper authentication in Microsoft Exchange Online allows an unauthorized attacker to perform tampering over a network...	2026-07-24
CVE-2026-54998	⚠️ high	8.8	0.6	Incorrect authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.	2026-07-02
CVE-2026-48579	⛔ critical	9.1	1.0	Improper authorization in Microsoft Exchange Online allows an unauthorized attacker to disclose information over a netwo...	2026-06-04

These CVEs affect the same products