CVE-2026-55008
Microsoft Exchange Server Spoofing 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 15.01.2507.071, 15.02.1544.043, 15.02.1748.048, 15.02.2562.045
- 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
Microsoft Exchange Server is affected by this vulnerability, which stems from improper handling of input in web pages. An unauthorized attacker on the network could exploit it to impersonate trusted content or users, leading to spoofing.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing 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 2016 Cumulative Update 23
From 15.01.0.0 · fixed in 15.01.2507.071
- Microsoft Microsoft Exchange Server 2019 Cumulative Update 14
From 15.02.0.0 · fixed in 15.02.1544.043
- Microsoft Microsoft Exchange Server 2019 Cumulative Update 15
From 15.02.0.0 · fixed in 15.02.1748.048
- Microsoft Microsoft Exchange Server Subscription Edition RTM
From 15.02.0.0 · fixed in 15.02.2562.045