CVE-2026-62912 PUBLISHED

Microsoft Exchange Server Denial of Service Vulnerability

Assigner: microsoft
Reserved: 14.07.2026 Published: 11.08.2026 Updated: 11.08.2026

Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to deny service over a network.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
CVSS Score: 6.5

Product Status

Vendor Microsoft
Product Microsoft Exchange Server 2016 Cumulative Update 23
Versions
  • affected from 15.01.0.0 to 15.01.2507.072 (excl.)
Vendor Microsoft
Product Microsoft Exchange Server 2019 Cumulative Update 14
Versions
  • affected from 15.02.0.0 to 15.02.1544.044 (excl.)
Vendor Microsoft
Product Microsoft Exchange Server 2019 Cumulative Update 15
Versions
  • affected from 15.02.0.0 to 15.02.1748.049 (excl.)
Vendor Microsoft
Product Microsoft Exchange Server Subscription Edition RTM
Versions
  • affected from 15.02.0.0 to 15.02.2562.046 (excl.)

References

Problem Types