CVSS 8.1ACTIVELY EXPLOITED4 sources verified·1 min read
By Lyrie Threat Intelligence·5/15/2026
HIGH: CVE-2026-42897 actively exploited — microsoft exchange server
CVE: CVE-2026-42897
CVSS: 8.1 (3.1) — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Severity: HIGH
Status: ✅ Confirmed exploited in the wild (CISA KEV)
Affected
- microsoft exchange server
Summary
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.
Verified Sources
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42897
_Validated by the Lyrie Threat Intelligence Pipeline — 3 independent sources confirmed before publication. No speculation._
Lyrie Verdict
Lyrie's autonomous detection layer catches active exploitation primitives at machine speed — closing the gap between disclosure and weaponization that traditional defense simply can't cover.
Validated sources
- [1]NVD
- [2]GitHub Advisory
- [3]MITRE
- [4]CISA KEV
Related Articles
active exploitation
Top bug bounty payouts in 2026:
* Apple — up to $5,000,000
* Microsoft — up to $250,000
* Google Chrome — up to $250,00
1 min read · 1 sources
active exploitation
Rapid reaction gets you ahead.
2 days before CISA added CVE-2026-9082 a critical SQL Injection vulnerability in Drupal
1 min read · 1 sources
cve deepdive
CRITICAL: CVE-2026-5874 (CVSS 9.6) — google chrome
1 min read · 3 sources