Red Hat Web Terminal vulnerabilities

2 CVEs affecting Red Hat Web Terminal, 1 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2025-57853, published 2026-04-08.

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Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2023-44487: HTTP/2 Rapid Reset Attack Vulnerability, published 2023-10-10. High severity, CVSS 7.5. Actively exploited: in CISA KEV since 2023-10-10. EPSS: 100% chance of exploitation in the next 30 days. The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
• CVE-2025-57853, published 2026-04-08. Medium severity, CVSS 6.4. EPSS: 0.2% chance of exploitation in the next 30 days. A container privilege escalation flaw was found in certain Web Terminal images. This issue stems from the /etc/passwd file being created with group-writable permissions during build time. In certain…