CVE-2026-118153: Microsoft Exchange Server Denial of Service Vulnerability
Microsoft · Microsoft Exchange Server Subscription Edition RTM
Vendor fix available · Affected: Microsoft Exchange Server Subscription Edition RTM · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 70% of scored CVEs
DescriptionCVE.org
Inefficient algorithmic complexity in Microsoft Exchange Server allows an unauthorized attacker to deny service over a network.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Microsoft · Microsoft Exchange Server Subscription Edition RTMfrom 15.02.0.0 before 15.02.2562.057
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Microsoft
- Published
- November 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-118153 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.