What is CVE-2016-0033?

CVE-2016-0033 is a high-severity vulnerability in Microsoft .Net Framework, classified under Code Injection. CVSS score: 7.5/10. Published 2016-02-10.

How severe is CVE-2016-0033?

High severity. CVSS v3 base score is 7.5 out of 10.

RCE in Microsoft .Net Framework

CVE-2016-0033

Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4.5.2, 4.6, and 4.6.1 does not prevent recursive compilation of XSLT transforms, which allows remote attackers to cause a denial of service (performance degradation) via crafted XSLT data, aka ".NET Framework Stack Overflow Denial of Service Vulnerability."

Vulnerability class: RCE (Remote Code Execution)

Published 2016-02-10 · last modified 2026-06-17.

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:N/A:H.

EPSS exploit prediction

EPSS: 0.176 (97.1th percentile), scored 2026-10-08.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.176 · newest: 0.176 · change: 0.000

Affected products

Microsoft .Net Framework — versions 2.0, 3.5, 3.5.1

Weakness classification (CWE)

CWE-94 — Code Injection

References

docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-019 (vendor-advisory)
www.securitytracker.com/id/1034983 (vdb-entry)

Frequently asked questions

What is CVE-2016-0033?: CVE-2016-0033 is a high-severity vulnerability in Microsoft .Net Framework, classified under Code Injection. CVSS score: 7.5/10. Published 2016-02-10.
How severe is CVE-2016-0033?: High severity. CVSS v3 base score is 7.5 out of 10.