Suricata vulnerabilities: known CVEs & security history
OISF · Security / IDS · 100 tracked CVEs · 0 actively exploited · updated November 2026 · what is a CVE? →
This is the full list of known vulnerabilities (CVEs) across all Suricata release lines — 100 in total. A CVE here doesn't mean your version is affected — check Suricata's current status and the safe version to run.
Known Suricata CVEs
Actively-exploited and most-severe first. Showing the top 80 of 100. Open any CVE for full details.
| CVE | Severity | CVSS | EPSS | Year |
|---|---|---|---|---|
| CVE-2023-35853 | critical | 9.8 | 1% | 2023 |
| CVE-2021-37592 | critical | 9.8 | 2% | 2021 |
| CVE-2018-10244 | critical | 9.8 | 2% | 2019 |
| CVE-2026-94084 | critical | 9.4 | — | 2026 |
| CVE-2026-94083 | critical | 9.4 | — | 2026 |
| CVE-2026-45764 | critical | 9.1 | 0% | 2026 |
| CVE-2019-18792 | critical | 9.1 | 3% | 2020 |
| CVE-2026-57228 | high | 8.2 | — | 2026 |
| CVE-2026-71418 | high | 7.5 | — | 2026 |
| CVE-2026-63452 | high | 7.5 | — | 2026 |
| CVE-2026-63447 | high | 7.5 | — | 2026 |
| CVE-2026-63446 | high | 7.5 | — | 2026 |
| CVE-2026-57227 | high | 7.5 | — | 2026 |
| CVE-2026-46352 | high | 7.5 | — | 2026 |
| CVE-2026-45770 | high | 7.5 | 0% | 2026 |
| CVE-2026-45769 | high | 7.5 | 1% | 2026 |
| CVE-2026-45768 | high | 7.5 | 0% | 2026 |
| CVE-2026-45766 | high | 7.5 | 0% | 2026 |
| CVE-2026-45765 | high | 7.5 | 0% | 2026 |
| CVE-2026-45762 | high | 7.5 | — | 2026 |
| CVE-2026-45759 | high | 7.5 | 1% | 2026 |
| CVE-2026-46387 | high | 7.5 | — | 2026 |
| CVE-2026-45747 | high | 7.5 | — | 2026 |
| CVE-2026-31937 | high | 7.5 | 0% | 2026 |
| CVE-2026-31935 | high | 7.5 | 0% | 2026 |
| CVE-2026-31934 | high | 7.5 | 0% | 2026 |
| CVE-2026-31933 | high | 7.5 | 0% | 2026 |
| CVE-2026-31932 | high | 7.5 | 0% | 2026 |
| CVE-2026-31931 | high | 7.5 | 0% | 2026 |
| CVE-2026-22260 | high | 7.5 | 0% | 2026 |
| CVE-2026-22259 | high | 7.5 | 1% | 2026 |
| CVE-2026-22258 | high | 7.5 | 0% | 2026 |
| CVE-2025-64344 | high | 7.5 | 0% | 2025 |
| CVE-2025-64335 | high | 7.5 | 0% | 2025 |
| CVE-2025-64334 | high | 7.5 | 0% | 2025 |
| CVE-2025-64333 | high | 7.5 | 0% | 2025 |
| CVE-2025-64332 | high | 7.5 | 0% | 2025 |
| CVE-2025-64331 | high | 7.5 | 0% | 2025 |
| CVE-2025-64330 | high | 7.5 | 0% | 2025 |
| CVE-2025-59150 | high | 7.5 | 1% | 2025 |
| CVE-2025-59148 | high | 7.5 | 0% | 2025 |
| CVE-2025-59147 | high | 7.5 | 0% | 2025 |
| CVE-2025-53538 | high | 7.5 | 0% | 2025 |
| CVE-2025-29915 | high | 7.5 | 0% | 2025 |
| CVE-2024-55629 | high | 7.5 | 1% | 2025 |
| CVE-2024-55628 | high | 7.5 | 1% | 2025 |
| CVE-2024-55605 | high | 7.5 | 1% | 2025 |
| CVE-2024-47522 | high | 7.5 | 1% | 2024 |
| CVE-2024-47188 | high | 7.5 | 0% | 2024 |
| CVE-2024-47187 | high | 7.5 | 0% | 2024 |
| CVE-2024-45795 | high | 7.5 | 1% | 2024 |
| CVE-2024-38536 | high | 7.5 | 1% | 2024 |
| CVE-2024-38535 | high | 7.5 | 1% | 2024 |
| CVE-2024-38534 | high | 7.5 | 1% | 2024 |
| CVE-2024-32663 | high | 7.5 | 1% | 2024 |
| CVE-2024-28870 | high | 7.5 | 1% | 2024 |
| CVE-2024-23836 | high | 7.5 | 1% | 2024 |
| CVE-2024-23835 | high | 7.5 | 1% | 2024 |
| CVE-2023-35852 | high | 7.5 | 1% | 2023 |
| CVE-2020-19678 | high | 7.5 | 3% | 2023 |
| CVE-2021-45098 | high | 7.5 | 2% | 2021 |
| CVE-2021-35063 | high | 7.5 | 2% | 2021 |
| CVE-2019-18625 | high | 7.5 | 2% | 2020 |
| CVE-2019-1010279 | high | 7.5 | 1% | 2019 |
| CVE-2019-1010251 | high | 7.5 | 2% | 2019 |
| CVE-2019-10050 | high | 7.5 | 1% | 2019 |
| CVE-2018-10242 | high | 7.5 | 2% | 2019 |
| CVE-2026-22264 | high | 7.4 | 0% | 2026 |
| CVE-2024-23839 | high | 7.1 | 1% | 2024 |
| CVE-2026-57223 | high | 7 | — | 2026 |
| CVE-2026-57224 | medium | 6.5 | — | 2026 |
| CVE-2025-59149 | medium | 6.2 | 0% | 2025 |
| CVE-2025-29918 | medium | 6.2 | 0% | 2025 |
| CVE-2025-29917 | medium | 6.2 | 0% | 2025 |
| CVE-2025-29916 | medium | 6.2 | 0% | 2025 |
| CVE-2026-71855 | medium | 5.9 | — | 2026 |
| CVE-2026-63448 | medium | 5.9 | — | 2026 |
| CVE-2026-45752 | medium | 5.9 | — | 2026 |
| CVE-2026-45751 | medium | 5.9 | — | 2026 |
| CVE-2026-45763 | medium | 5.9 | — | 2026 |
20 older / lower-severity CVEs not shown — see Suricata's full record.
Is my Suricata 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 Suricata version → · Monitor Suricata for new CVEs →
Suricata vulnerabilities — frequently asked
How many known vulnerabilities does Suricata have?
IsItPatched tracks 100 CVEs for Suricata. 7 are critical-severity and 63 high-severity. These span every release line — what matters is whether the version you run is affected.
Does Suricata have any actively-exploited vulnerabilities?
None of Suricata'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 Suricata vulnerability?
Among tracked issues, CVE-2023-35853 (CRITICAL, CVSS 9.8) ranks highest — a Code injection weakness.
Is Suricata safe to use?
It depends on the version. The latest supported Suricata release 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: Suricata security status · Suricata end-of-life · actively-exploited CVEs. Always verify against OISF's advisories — see our disclaimer.