CVE-2026-55007
Double free in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.
Scoring
- Severity
- HIGH
- CVSS base score
- 8.1
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
- EPSS probability
- 0.73%
- CWE
- CWE-415
- Published
- 2026-09-08
- Last modified
- 2026-09-17
Affected products
- Microsoft Microsoft Exchange Server 2019 Cumulative Update 14
- Microsoft Microsoft Exchange Server 2019 Cumulative Update 15
- Microsoft Microsoft Exchange Server Subscription Edition RTM