OpenWrt vulnerabilities: known CVEs & security history
OpenWrt · Operating System · 5 tracked CVEs · 0 actively exploited · updated August 2026 · what is a CVE? →
This is the full list of known vulnerabilities (CVEs) across all OpenWrt release lines — 5 in total. A CVE here doesn't mean your version is affected — check OpenWrt's current status and the safe version to run.
Known OpenWrt CVEs
Actively-exploited and most-severe first. Open any CVE for full details.
| CVE | Severity | CVSS | EPSS | Year |
|---|---|---|---|---|
| CVE-2026-62948 | critical | 9.6 | 0% | 2026 |
| CVE-2019-17367 | high | 8.8 | 1% | 2019 |
| CVE-2026-55490 | medium | 6.5 | 1% | 2026 |
| CVE-2021-33425 | medium | 5.4 | 1% | 2021 |
| CVE-2026-62947 | medium | 4.9 | 0% | 2026 |
Is my OpenWrt version affected?
The list above spans every release. To know whether your version is affected — and the minimum safe version to upgrade to — check it directly.
Check your OpenWrt version → · Monitor OpenWrt for new CVEs →
OpenWrt vulnerabilities — frequently asked
How many known vulnerabilities does OpenWrt have?
IsItPatched tracks 5 CVEs for OpenWrt. 1 is critical-severity and 1 high-severity. These span every release line — what matters is whether the version you run is affected.
Does OpenWrt have any actively-exploited vulnerabilities?
None of OpenWrt's tracked CVEs are currently in CISA's KEV catalog — but new ones can be added at any time, so keep your version current.
What is the most severe OpenWrt vulnerability?
Among tracked issues, CVE-2026-62948 (CRITICAL, CVSS 9.6) ranks highest — a Cross-site scripting (XSS) weakness.
Is OpenWrt safe to use?
It depends on the version. The latest supported OpenWrt release (25.12.5) clears the known issues; older versions may still be affected. Check the exact version you run for a verdict.
CVE data aggregated from NVD, CISA KEV and EPSS (FIRST.org). Related: OpenWrt security status · OpenWrt end-of-life · actively-exploited CVEs. Always verify against OpenWrt's advisories — see our disclaimer.