Fedora 42 — xen — multiple vulnerabilities (4 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Fedora 42 📖 ~4 min read • Source: Fedora update FEDORA-2026-0c9aff64a5 Related CVEs: CVE-2026-23556 CVE-2026-23557 CVE-2026-23558 CVE-2025-54505 Upstream summary: oxenstored keeps quota related use counts across domain destruction [XSA-483, CVE-2026-23556] Xenstored DoS via XS_RESET_WATCHES command [XSA-484, CVE-2026-23557] grant table v2 race in […]