Vulnerability in Microsoft .Net Framework
CVE-2017-0248
Microsoft .NET Framework 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7 allow an attacker to bypass Enhanced Security Usage taggings when they present a certificate that is invalid for a specific use, aka ".NET Security Feature Bypass Vulnerability."
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.055 (92.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 92.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.055 · newest: 0.055 · change: 0.000
Affected products
- Microsoft .Net Framework — versions 2.0, 3.5, 3.5.1
- Microsoft Corporation .Net Framework — versions Microsoft .NET Framework 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0248 (Patch, Vendor Advisory)
- www.securityfocus.com/bid/98117 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1038458 (vdb-entry)
Frequently asked questions
- What is CVE-2017-0248?
- CVE-2017-0248 is a high-severity vulnerability in Microsoft .Net Framework, classified under Improper Certificate Validation. CVSS score: 7.5/10. Published 2017-05-12.
- How severe is CVE-2017-0248?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2017-0248 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.