VULNERABILITY INTELLIGENCE
CVE-2021-41816
CVSS score9.8 CRITICAL
EPSS probability4.90%
CISA KEVNot currently listed
Published2022-02-06
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
CGI.escape_html in Ruby before 2.7.5 and 3.x before 3.0.3 has an integer overflow and resultant buffer overflow via a long string on platforms (such as Windows) where size_t and long have different numbers of bytes. This also affects the CGI gem before 0.3.1 for Ruby.
Weakness classification
- nvd@nist.gov: CWE-190
Primary references
- cve@mitre.org — Permissions Required, Third Party Advisory
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org — Third Party Advisory
- cve@mitre.org
- cve@mitre.org — Third Party Advisory
- cve@mitre.org — Exploit, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Permissions Required, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108