CVE-2026-45502: Microsoft Exchange Server Information Disclosure Vulnerability
Microsoft · Microsoft Exchange Server 2016 Cumulative Update 23
Vendor fix available · Affected: Microsoft Exchange Server 2016 Cumulative Update 23 · Exploitation: likely to be exploited (10% or more)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 97% of scored CVEs
DescriptionCVE.org
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
Affected products4
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Microsoft · Microsoft Exchange Server 2016 Cumulative Update 23from 15.01.0.0 before 15.01.2507.071
- Microsoft · Microsoft Exchange Server 2019 Cumulative Update 14from 15.02.0.0 before 15.02.1544.043
- Microsoft · Microsoft Exchange Server 2019 Cumulative Update 15from 15.02.0.0 before 15.02.1748.048
- Microsoft · Microsoft Exchange Server Subscription Edition RTMfrom 15.02.0.0 before 15.02.2562.045
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Likely to be exploited (10% or more). EPSS gives it a 10% or higher chance of exploitation in the next 30 days.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Weakness
- Server-Side Request Forgery
- Vendor
- Microsoft
- Published
- June 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-45502 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.