CVE-2018-8159 json
An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests, aka…
published 2018-05-09 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-19830
- cvss
- 5.4
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.5%
- EPSS 3.5% chance of exploitation in 30 days, percentile 89%
- public exploits
- 0
- none known
Summary
An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests, aka "Microsoft Exchange Elevation of Privilege Vulnerability." This affects Microsoft Exchange Server.
Patch / fix
Exploit prediction
3.51% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 5.4 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N |
| NVD | 2.0 | 5.8 | AV:N/AC:M/Au:N/C:P/I:P/A:N |
Affected products
- Microsoft Microsoft Exchange Server
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2018-8159
patch, vendor-advisory
-
securityfocus.com
/bid/104056
vdb-entry, third-party-advisory
-
securitytracker.com
/id/1040850
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2018-8159
- NVD CVE-2018-8159
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.