Is Envoy 1.17.4 patched?
Current stable (1.39.4): 100/100
1.17.4 has 11 open critical-or-high vulnerabilities. Run 1.36.10 or later to clear them. See what 1.36.10 fixes →
Summary iPlain-English security status for Envoy 1.17.4, built from its CVEs, active-exploitation data, end-of-life date and latest release.
Envoy 1.17.4 is part of the 1.17 release line. 21 known vulnerabilities affect it. The minimum safe version is 1.36.10 — upgrade to it or later to clear the open critical/high issues. The 1.17 line reached end-of-life on 2022-01-11, so it no longer receives security patches. The latest supported Envoy release is 1.39.4.
Known issues affecting 1.17.4
Exploited first, then by exploitation probability.
CVE-2023-35945 HIGH EPSS 1% → fixed in 1.26.3 CVE-2026-73512 HIGH EPSS 1% → fixed in 1.39.1 CVE-2026-73547 HIGH EPSS 1% → fixed in 1.39.1 CVE-2026-47774 HIGH EPSS 1% → fixed in 1.37.3 CVE-2026-48521 MEDIUM EPSS 1% → fixed in 1.39.1 CVE-2026-50572 MEDIUM EPSS 1% → fixed in 1.39.1 CVE-2026-73552 HIGH EPSS 1% → fixed in 1.39.1 CVE-2026-73549 MEDIUM EPSS 1% → fixed in 1.39.1 CVE-2026-73546 HIGH EPSS 1% → fixed in 1.39.1 CVE-2026-73550 HIGH EPSS 1% → fixed in 1.39.1 CVE-2026-73511 MEDIUM EPSS 1% → fixed in 1.39.1 CVE-2026-73551 MEDIUM EPSS 1% → fixed in 1.39.1 CVE-2025-64527 MEDIUM EPSS 1% → fixed in 1.36.3 CVE-2026-73553 HIGH EPSS 1% → fixed in 1.39.1 CVE-2026-73548 HIGH EPSS 0% → fixed in 1.39.1 CVE-2026-73513 HIGH EPSS 0% → fixed in 1.39.1 CVE-2025-62409 HIGH EPSS 0% → fixed in 1.35.5 CVE-2025-62504 MEDIUM EPSS 0% → fixed in 1.36.2 CVE-2026-48497 MEDIUM EPSS 0% → fixed in 1.38.3 CVE-2026-47778 MEDIUM EPSS 0% → fixed in 1.38.3Other Envoy versions
Check another release line of Envoy.
Frequently asked
Is Envoy 1.17.4 patched?
Envoy 1.17.4 is end-of-life and no longer receives security patches. Move to 1.39.4.
What version should I upgrade Envoy 1.17.4 to?
Upgrade Envoy 1.17.4 to at least 1.36.10 to clear its 11 open critical-or-high vulnerabilities.
When does Envoy 1.17 reach end-of-life?
Envoy 1.17 reached end-of-life on 2022-01-11 and no longer receives security patches.
What is the latest version of Envoy?
The latest supported Envoy release is 1.39.4.
Is Envoy 1.17.4 still receiving security updates?
No — Envoy 1.17.4 is on the 1.17 line, which reached end-of-life on 2022-01-11 and no longer receives security updates. Upgrade to 1.39.4 or later to stay supported.
Informational only, from public data (NVD · CISA KEV · EPSS · endoflife.date), and can lag or miss vendor-specific fixes. Always confirm against Envoy Proxy's official advisory before you patch or upgrade — Envoy official site ↗