CVE-2026-55007
Microsoft Exchange Server Remote Code Execution Vulnerability
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 15.02.1544.046, 15.02.1748.051, 15.02.2562.049
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
Double free in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Microsoft Microsoft Exchange Server 2019 Cumulative Update 14
From 15.02.0.0 · fixed in 15.02.1544.046
- Microsoft Microsoft Exchange Server 2019 Cumulative Update 15
From 15.02.0.0 · fixed in 15.02.1748.051
- Microsoft Microsoft Exchange Server Subscription Edition RTM
From 15.02.0.0 · fixed in 15.02.2562.049