Information disclosure in Microsoft .Net Framework
CVE-2016-3255
Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4.5.2, 4.6, and 4.6.1 allows remote attackers to read arbitrary files via XML data containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue, aka ".NET Information Disclosure Vulnerability."
Vulnerability class: Information Disclosure
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:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.247 (97.8th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.247 · newest: 0.247 · change: 0.000
Affected products
- Microsoft .Net Framework — versions 2.0, 3.5, 3.5.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securitytracker.com/id/1036291 (vdb-entry)
- docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-091 (vendor-advisory)
- www.securityfocus.com/bid/91601 (vdb-entry)
Frequently asked questions
- What is CVE-2016-3255?
- CVE-2016-3255 is a high-severity vulnerability in Microsoft .Net Framework, classified under Information Disclosure. CVSS score: 7.5/10. Published 2016-07-13.
- How severe is CVE-2016-3255?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2016-3255 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.