Fedora vulnerabilities: known CVEs & security history
Fedora Project · OS / Linux · 97 tracked CVEs · 8 actively exploited · updated September 2026 · what is a CVE? →
This is the full list of known vulnerabilities (CVEs) across all Fedora release lines — 97 in total, with 8 actively exploited in the wild. A CVE here doesn't mean your version is affected — check Fedora's current status and the safe version to run.
Known Fedora CVEs
Actively-exploited and most-severe first. Showing the top 80 of 97. Open any CVE for full details.
| CVE | Severity | CVSS | EPSS | Year |
|---|---|---|---|---|
| CVE-2021-44228⚡ exploited | critical | 10 | 100% | 2021 |
| CVE-2020-1938⚡ exploited | critical | 9.8 | 99% | 2020 |
| CVE-2021-40438⚡ exploited | critical | 9 | 100% | 2021 |
| CVE-2022-2294⚡ exploited | high | 8.8 | 70% | 2022 |
| CVE-2024-1086⚡ exploited | high | 7.8 | 28% | 2024 |
| CVE-2022-0995⚡ exploited | high | 7.8 | 6% | 2022 |
| CVE-2023-44487⚡ exploited | high | 7.5 | 100% | 2023 |
| CVE-2023-38180⚡ exploited | high | 7.5 | 15% | 2023 |
| CVE-2023-46850 | critical | 9.8 | 2% | 2023 |
| CVE-2022-37434 | critical | 9.8 | 16% | 2022 |
| CVE-2022-23304 | critical | 9.8 | 2% | 2022 |
| CVE-2022-23303 | critical | 9.8 | 3% | 2022 |
| CVE-2021-33643 | critical | 9.1 | 1% | 2022 |
| CVE-2023-6879 | critical | 9 | 1% | 2023 |
| CVE-2026-35093 | high | 8.8 | 0% | 2026 |
| CVE-2024-21626 | high | 8.6 | 18% | 2024 |
| CVE-2024-27018 | high | 8.2 | 0% | 2024 |
| CVE-2021-41164 | high | 8.2 | 1% | 2021 |
| CVE-2024-22373 | high | 8.1 | 1% | 2024 |
| CVE-2022-38023 | high | 8.1 | 2% | 2022 |
| CVE-2022-37966 | high | 8.1 | 3% | 2022 |
| CVE-2024-27398 | high | 8 | 1% | 2024 |
| CVE-2024-35949 | high | 7.8 | 0% | 2024 |
| CVE-2024-27401 | high | 7.8 | 0% | 2024 |
| CVE-2024-27400 | high | 7.8 | 0% | 2024 |
| CVE-2024-27019 | high | 7.8 | 0% | 2024 |
| CVE-2024-27017 | high | 7.8 | 0% | 2024 |
| CVE-2024-27012 | high | 7.8 | 0% | 2024 |
| CVE-2024-26994 | high | 7.8 | 0% | 2024 |
| CVE-2024-26922 | high | 7.8 | 0% | 2024 |
| CVE-2023-5367 | high | 7.8 | 1% | 2023 |
| CVE-2023-4750 | high | 7.8 | 1% | 2023 |
| CVE-2023-4733 | high | 7.8 | 1% | 2023 |
| CVE-2023-36664 | high | 7.8 | 3% | 2023 |
| CVE-2022-1055 | high | 7.8 | 1% | 2022 |
| CVE-2022-0330 | high | 7.8 | 0% | 2022 |
| CVE-2022-27666 | high | 7.8 | 6% | 2022 |
| CVE-2022-1011 | high | 7.8 | 1% | 2022 |
| CVE-2022-26490 | high | 7.8 | 0% | 2022 |
| CVE-2022-24958 | high | 7.8 | 0% | 2022 |
| CVE-2021-41864 | high | 7.8 | 0% | 2021 |
| CVE-2021-35267 | high | 7.8 | 1% | 2021 |
| CVE-2021-35266 | high | 7.8 | 1% | 2021 |
| CVE-2021-33287 | high | 7.8 | 0% | 2021 |
| CVE-2021-35269 | high | 7.8 | 0% | 2021 |
| CVE-2021-35268 | high | 7.8 | 0% | 2021 |
| CVE-2021-33289 | high | 7.8 | 1% | 2021 |
| CVE-2021-38166 | high | 7.8 | 0% | 2021 |
| CVE-2021-33034 | high | 7.8 | 1% | 2021 |
| CVE-2021-23134 | high | 7.8 | 0% | 2021 |
| CVE-2022-38178 | high | 7.5 | 3% | 2022 |
| CVE-2022-38177 | high | 7.5 | 3% | 2022 |
| CVE-2022-27406 | high | 7.5 | 3% | 2022 |
| CVE-2022-27405 | high | 7.5 | 3% | 2022 |
| CVE-2018-25032 | high | 7.5 | 52% | 2022 |
| CVE-2020-25649 | high | 7.5 | 18% | 2020 |
| CVE-2011-4088 | high | 7.5 | 2% | 2020 |
| CVE-2023-40548 | high | 7.4 | 0% | 2024 |
| CVE-2021-20322 | high | 7.4 | 7% | 2022 |
| CVE-2019-10086 | high | 7.3 | 30% | 2019 |
| CVE-2022-37967 | high | 7.2 | 4% | 2022 |
| CVE-2024-27016 | high | 7.1 | 0% | 2024 |
| CVE-2021-3739 | high | 7.1 | 1% | 2022 |
| CVE-2021-3501 | high | 7.1 | 0% | 2021 |
| CVE-2026-54230 | high | 7 | 0% | 2026 |
| CVE-2023-6546 | high | 7 | 1% | 2023 |
| CVE-2021-44733 | high | 7 | 1% | 2021 |
| CVE-2021-41617 | high | 7 | 2% | 2021 |
| CVE-2021-40490 | high | 7 | 0% | 2021 |
| CVE-2020-9484 | high | 7 | 57% | 2020 |
| CVE-2021-23133 | medium | 6.7 | 0% | 2021 |
| CVE-2021-41184 | medium | 6.5 | 41% | 2021 |
| CVE-2021-41183 | medium | 6.5 | 9% | 2021 |
| CVE-2021-41182 | medium | 6.5 | 39% | 2021 |
| CVE-2019-11049 | medium | 6.5 | 4% | 2019 |
| CVE-2020-9281 | medium | 6.1 | 4% | 2020 |
| CVE-2023-4806 | medium | 5.9 | 1% | 2023 |
| CVE-2026-54231 | medium | 5.5 | 0% | 2026 |
| CVE-2024-0443 | medium | 5.5 | 0% | 2024 |
| CVE-2023-3576 | medium | 5.5 | 0% | 2023 |
17 older / lower-severity CVEs not shown — see Fedora's full record.
Is my Fedora 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 Fedora version → · Monitor Fedora for new CVEs →
Fedora vulnerabilities — frequently asked
How many known vulnerabilities does Fedora have?
IsItPatched tracks 97 CVEs for Fedora, 8 of which are actively exploited (CISA KEV). 9 are critical-severity and 61 high-severity. These span every release line — what matters is whether the version you run is affected.
Does Fedora have any actively-exploited vulnerabilities?
Yes — 8 Fedora CVEs are in CISA's Known Exploited Vulnerabilities catalog, meaning they are confirmed exploited in the wild (4 linked to ransomware). Patch these as a priority.
What is the most severe Fedora vulnerability?
Among tracked issues, CVE-2021-44228 (CRITICAL, CVSS 10), which is actively exploited, ranks highest — a Improper input validation weakness.
Is Fedora safe to use?
It depends on the version. The latest supported Fedora release (44) 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: Fedora security status · Fedora end-of-life · actively-exploited CVEs. Always verify against Fedora Project's advisories — see our disclaimer.