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FreeBSD vulnerabilities: known CVEs & security history

FreeBSD · OS / Unix · 77 tracked CVEs · 1 actively exploited · updated November 2026 · what is a CVE? →

This is the full list of known vulnerabilities (CVEs) across all FreeBSD release lines — 77 in total, with 1 actively exploited in the wild. A CVE here doesn't mean your version is affected — check FreeBSD's current status and the safe version to run.

77
known CVEs
1
actively exploited (KEV)
5
critical severity
0
ransomware-linked

Known FreeBSD CVEs

Actively-exploited and most-severe first. Open any CVE for full details.

CVESeverityCVSSEPSSYear
CVE-2026-106931⚡ exploited high 7.8 1% 2026
CVE-2026-101306 critical 9.8 0% 2026
CVE-2026-58082 critical 9.8 1% 2026
CVE-2026-58081 critical 9.8 1% 2026
CVE-2019-12900 critical 9.8 8% 2019
CVE-2026-101307 critical 9.1 0% 2026
CVE-2026-101305 high 8.8 0% 2026
CVE-2026-58096 high 8.8 1% 2026
CVE-2026-58095 high 8.8 1% 2026
CVE-2026-49427 high 8.8 0% 2026
CVE-2026-49420 high 8.8 0% 2026
CVE-2026-49419 high 8.8 0% 2026
CVE-2026-49418 high 8.8 0% 2026
CVE-2026-49415 high 8.8 0% 2026
CVE-2026-39461 high 8.8 0% 2026
CVE-2019-5596 high 8.8 1% 2019
CVE-2026-58098 high 8.4 0% 2026
CVE-2026-58083 high 8.4 0% 2026
CVE-2026-49428 high 8.4 0% 2026
CVE-2026-49422 high 8.4 0% 2026
CVE-2026-45253 high 8.4 0% 2026
CVE-2026-58092 high 8.1 0% 2026
CVE-2026-58086 high 8.1 0% 2026
CVE-2024-6387 high 8.1 100% 2024
CVE-2026-58097 high 7.8 0% 2026
CVE-2026-58094 high 7.8 0% 2026
CVE-2026-58091 high 7.8 0% 2026
CVE-2026-58090 high 7.8 0% 2026
CVE-2026-58089 high 7.8 0% 2026
CVE-2026-58087 high 7.8 0% 2026
CVE-2026-49430 high 7.8 0% 2026
CVE-2026-49429 high 7.8 0% 2026
CVE-2026-49416 high 7.8 0% 2026
CVE-2026-49414 high 7.8 0% 2026
CVE-2026-49412 high 7.8 0% 2026
CVE-2026-45258 high 7.8 0% 2026
CVE-2026-45257 high 7.8 0% 2026
CVE-2026-45251 high 7.8 0% 2026
CVE-2026-45250 high 7.8 0% 2026
CVE-2026-101303 high 7.5 0% 2026
CVE-2026-58085 high 7.5 0% 2026
CVE-2026-45255 high 7.5 0% 2026
CVE-2020-1967 high 7.5 53% 2020
CVE-2000-0916 high 7.5 6% 2000
CVE-2026-58088 high 7.4 0% 2026
CVE-2021-3450 high 7.4 18% 2021
CVE-2006-1283 high 7.2 0% 2006
CVE-2002-0062 high 7.2 0% 2002
CVE-2000-0963 high 7.2 1% 2000
CVE-2000-0993 high 7.2 2% 2000
CVE-2000-0998 high 7.2 1% 2000
CVE-2000-1013 high 7.2 0% 2000
CVE-2026-101304 high 7.1 0% 2026
CVE-2026-49421 high 7.1 0% 2026
CVE-2026-49413 high 7.1 0% 2026
CVE-2026-58100 high 7 0% 2026
CVE-2026-58099 high 7 0% 2026
CVE-2026-58093 high 7 0% 2026
CVE-2026-49417 high 7 0% 2026
CVE-2026-101302 medium 6.5 0% 2026
CVE-2026-45259 medium 6.5 0% 2026
CVE-2026-45254 medium 6.5 0% 2026
CVE-2023-48795 medium 5.9 94% 2023
CVE-2021-3449 medium 5.9 64% 2021
CVE-2019-6111 medium 5.9 58% 2019
CVE-2026-101308 medium 5.5 0% 2026
CVE-2026-58084 medium 5.5 0% 2026
CVE-2026-49425 medium 5.5 0% 2026
CVE-2026-49424 medium 5.5 0% 2026
CVE-2026-45256 medium 5.5 0% 2026
CVE-2026-45252 medium 5.5 0% 2026
CVE-2020-13434 medium 5.5 1% 2020
CVE-2019-5595 medium 5.5 0% 2019
CVE-2000-0915 medium 5 2% 2000
CVE-2026-49423 low 3.3 0% 2026
CVE-2026-49431 low 3.3 0% 2026
CVE-2026-49426 low 3.3 0% 2026

Is my FreeBSD 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 FreeBSD version → · Monitor FreeBSD for new CVEs →

FreeBSD vulnerabilities — frequently asked

How many known vulnerabilities does FreeBSD have?

IsItPatched tracks 77 CVEs for FreeBSD, 1 of which is actively exploited (CISA KEV). 5 are critical-severity and 54 high-severity. These span every release line — what matters is whether the version you run is affected.

Does FreeBSD have any actively-exploited vulnerabilities?

Yes — 1 FreeBSD CVE is in CISA's Known Exploited Vulnerabilities catalog, meaning it is confirmed exploited in the wild. Patch it as a priority.

What is the most severe FreeBSD vulnerability?

Among tracked issues, CVE-2026-106931 (HIGH, CVSS 7.8), which is actively exploited, ranks highest — a OS command injection weakness.

Is FreeBSD safe to use?

It depends on the version. The latest supported FreeBSD 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: FreeBSD security status · FreeBSD end-of-life · actively-exploited CVEs. Always verify against FreeBSD's advisories — see our disclaimer.