How we count
Every figure on this page is a direct count of entries in CISA’s Known Exploited Vulnerabilities catalog attributed by CISA to Red Hat (KEV field vendorProject), refreshed daily. “Ransomware-linked” counts entries CISA marks as known to be used in ransomware campaigns; the remainder are “unknown” to CISA, not confirmed ransomware-free. A KEV listing means the vulnerability has been observed exploited in the wild. Snapshot as of 2026-08-31.
Exploited Red Hat vulnerabilities (CISA KEV)
| CVE | Product | Vulnerability | Added | |
|---|---|---|---|---|
| CVE-2015-3246 | Libuser | Red Hat Libuser Race Condition Vulnerability | 2026-08-26 | |
| CVE-2015-5287 | Automatic Bug Reporting Tool | Red Hat Automatic Bug Reporting Tool Privilege Escalation Vulnerability | 2026-08-26 | |
| CVE-2018-14667 | JBoss RichFaces Framework | Red Hat JBoss RichFaces Framework Expression Language Injection Vulnerability | 2023-09-28 | |
| CVE-2021-3560 | Polkit | Red Hat Polkit Incorrect Authorization Vulnerability | 2023-05-12 | |
| CVE-2021-4034 | Polkit | Red Hat Polkit Out-of-Bounds Read and Write Vulnerability | 2022-06-27 | ransomware |
| CVE-2010-1428 | JBoss | Red Hat JBoss Information Disclosure Vulnerability | 2022-05-25 | ransomware |
| CVE-2010-0738 | JBoss | Red Hat JBoss Authentication Bypass Vulnerability | 2022-05-25 | ransomware |
| CVE-2017-12149 | JBoss Application Server | Red Hat JBoss Application Server Remote Code Execution Vulnerability | 2021-12-10 | ransomware |
| CVE-2010-1871 | JBoss Seam 2 | Red Hat Linux JBoss Seam 2 Remote Code Execution Vulnerability | 2021-12-10 |
← All vendors by exploited-vulnerability count
🤖 Generated by defend.network from the CISA KEV catalog. Counts are deterministic aggregates of official CISA data; verify individual advisories at the linked sources.