Auth bypass in Microsoft Edge
CVE-2018-0803
Microsoft Edge in Microsoft Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016 allows an attacker to access information from one domain and inject it into another domain, due to how Microsoft Edge enforces cross-domain policies, aka "Microsoft Edge Elevation of Privilege Vulnerability".
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.037 (89.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.037 · newest: 0.037 · change: 0.000
Affected products
- Microsoft Edge
- Microsoft Windows 10 — versions 1511, 1607, 1703
- Microsoft Windows Server 2016
- Microsoft Corporation Edge — versions Microsoft Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016.
Weakness classification (CWE)
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0803 (Patch, Vendor Advisory)
- www.securitytracker.com/id/1040100 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securityfocus.com/bid/102384 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2018-0803?
- CVE-2018-0803 is a medium-severity vulnerability in Microsoft Edge, classified under Incorrect Authorization. CVSS score: 4.2/10. Published 2018-01-04.
- How severe is CVE-2018-0803?
- Medium severity. CVSS v3 base score is 4.2 out of 10.