Red Hat — known exploited vulnerabilities
The CISA Known Exploited Vulnerabilities catalog (KEV) lists vulnerabilities that CISA has confirmed are being exploited in the wild; U.S. federal civilian agencies are required to remediate each entry by its due date. This page joins the KEV entries for Red Hat with NVD CVSS scores and CISA's ransomware-campaign flag. See our methodology or browse all CVEs.
Key findings
CISA's Known Exploited Vulnerabilities catalog lists 9 Red Hat vulnerabilities confirmed as exploited in the wild across 7 products; 4 of them (44%) are flagged as used in known ransomware campaigns. Polkit and JBoss are tied as the most-affected products, with 2 entries each (22% of the total each). CISA added 2 entries in 2026 so far, compared with 0 in 2025. Across the 9 entries with an NVD CVSS score (100% of the total), the average score is 8.0; 2 entries are rated critical by NVD. The most recent addition is CVE-2015-3246 (Red Hat Libuser Race Condition Vulnerability), added on 2026-08-26.
Affected products
| Product | Entries | Share |
|---|---|---|
| Polkit | 2 | 22% |
| JBoss | 2 | 22% |
| Libuser | 1 | 11% |
| Automatic Bug Reporting Tool | 1 | 11% |
| JBoss RichFaces Framework | 1 | 11% |
| JBoss Application Server | 1 | 11% |
| JBoss Seam 2 | 1 | 11% |
Entries added per year
By date added to the KEV catalog
Exploited Red Hat vulnerabilities (9)
Newest first. CVSS scores from NVD where available.
| CVE | Product | Vulnerability | Date added | Ransomware | CVSS |
|---|---|---|---|---|---|
| CVE-2015-3246 | Libuser | Red Hat Libuser Race Condition Vulnerability | 2026-08-26 | — | HIGH7.4 |
| CVE-2015-5287 | Automatic Bug Reporting Tool | Red Hat Automatic Bug Reporting Tool Privilege Escalation Vulnerability | 2026-08-26 | — | HIGH7.8 |
| CVE-2018-14667 | JBoss RichFaces Framework | Red Hat JBoss RichFaces Framework Expression Language Injection Vulnerability | 2023-09-28 | — | CRITICAL9.8 |
| CVE-2021-3560 | Polkit | Red Hat Polkit Incorrect Authorization Vulnerability | 2023-05-12 | — | HIGH7.8 |
| CVE-2021-4034 | Polkit | Red Hat Polkit Out-of-Bounds Read and Write Vulnerability | 2022-06-27 | Known | HIGH7.8 |
| CVE-2010-1428 | JBoss | Red Hat JBoss Information Disclosure Vulnerability | 2022-05-25 | Known | HIGH7.5 |
| CVE-2010-0738 | JBoss | Red Hat JBoss Authentication Bypass Vulnerability | 2022-05-25 | Known | MEDIUM5.3 |
| CVE-2017-12149 | JBoss Application Server | Red Hat JBoss Application Server Remote Code Execution Vulnerability | 2021-12-10 | Known | CRITICAL9.8 |
| CVE-2010-1871 | JBoss Seam 2 | Red Hat Linux JBoss Seam 2 Remote Code Execution Vulnerability | 2021-12-10 | — | HIGH8.8 |
Source: CISA Known Exploited Vulnerabilities catalog, joined with NIST NVD CVSS data. Vendor names are normalized across spellings. Compare all vendors.