# FreeBSD vulnerabilities

Source: https://junglewise.ai/threats/technologies/freebsd  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 12 November 2026, 00:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/freebsd.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 89 vulnerabilities in FreeBSD: 0 in the last 7 days and 41 in the last 90 days, 7 of them critical and 0 exploited in the wild. The most recent, CVE-2026-58100, was published on 15 October 2026. 10 vulnerabilities in the last four weeks, up from none in the four before. 2 critical against 0.

## Counts

- Last 7 days: 0
- Last 30 days: 10
- Last 90 days: 41
- All time: 89 (7 critical, 0 exploited in the wild)

## About FreeBSD

A high-performance access switch supporting multigigabit Ethernet and cloud-based management.

## Latest FreeBSD vulnerabilities

- [CVE-2026-58100: FreeBSD kqueue out-of-bounds read in fork copy](https://junglewise.ai/threats/cve-2026-58100-kqueue-fork-copy-knote-indexed-into-the-child-s-file-descriptor) (info, published 15 Oct 2026)
- [CVE-2026-58099: FreeBSD kernel kqueue memory safety bugs in copy-on-fork](https://junglewise.ai/threats/cve-2026-58099-when-copying-knotes-from-a-parent-kqueue-to-a-child-the-copy-code) (info, published 15 Oct 2026)
- [CVE-2026-58098: FreeBSD kernel heap out-of-bounds access in semop(2)](https://junglewise.ai/threats/cve-2026-58098-when-semop-2-blocks-waiting-for-a-semaphore-condition-it-releases) (high, CVSS 8.4, published 15 Oct 2026)
- [CVE-2026-101308: FreeBSD sound(4) use-after-free in buffer resize TOCTOU race](https://junglewise.ai/threats/cve-2026-101308-when-an-audio-channel-s-buffer-needs-to-be-resized-the-sound-4) (medium, CVSS 5.5, published 15 Oct 2026)
- [CVE-2026-101307: FreeBSD RACK stack buffer overflow in tcp_rack](https://junglewise.ai/threats/cve-2026-101307-when-the-pcm-sample-array-needs-to-grow-the-rack-stack-doubles-a) (critical, CVSS 9.1, published 15 Oct 2026)
- [CVE-2026-101306: FreeBSD jail filesystem root escape via SCM_RIGHTS](https://junglewise.ai/threats/cve-2026-101306-scm-rights-file-descriptor-passing-did-not-preserve-fd-resolve) (critical, CVSS 9.8, published 15 Oct 2026)
- [CVE-2026-101305: FreeBSD jail filesystem root escape via renameat(2)](https://junglewise.ai/threats/cve-2026-101305-renameat-2-did-not-enforce-fd-resolve-beneath-on-its-directory) (high, CVSS 8.8, published 15 Oct 2026)
- [CVE-2026-101304: FreeBSD jail fdescfs filesystem root escape via FD_RESOLVE_BENEATH bypass](https://junglewise.ai/threats/cve-2026-101304-when-fdescfs-4-was-mounted-in-a-jail-with-the-nodup-option) (high, CVSS 7.1, published 15 Oct 2026)
- [CVE-2026-101303: FreeBSD IPv6 UDP sendto jail loopback restriction bypass](https://junglewise.ai/threats/cve-2026-101303-the-ipv6-udp-send-path-for-unconnected-sockets-did-not-apply-the) (high, CVSS 7.5, published 15 Oct 2026)
- [CVE-2026-101302: FreeBSD kernel TLS off-by-one NULL pointer dereference](https://junglewise.ai/threats/cve-2026-101302-tls-1-3-embeds-the-actual-record-type-as-the-last-non-zero-byte) (medium, CVSS 6.5, published 15 Oct 2026)
- [CVE-2026-58097: FreeBSD ppp buffer overflow in mp_SetEnddisc()](https://junglewise.ai/threats/cve-2026-58097-freebsd-ppp-buffer-overflow-in-mp-setenddisc) (high, CVSS 7.8, published 26 Aug 2026)
- [CVE-2026-58096: FreeBSD ppp out-of-bounds write in LcpDecodeConfig](https://junglewise.ai/threats/cve-2026-58096-freebsd-ppp-out-of-bounds-write-in-lcpdecodeconfig) (high, CVSS 8.8, published 26 Aug 2026)
- [CVE-2026-58095: FreeBSD ppp buffer overflow in endpoint discriminator handling](https://junglewise.ai/threats/cve-2026-58095-freebsd-ppp-buffer-overflow-in-endpoint-discriminator-handling) (high, CVSS 8.8, published 26 Aug 2026)
- [CVE-2026-58094: FreeBSD POSIX shared memory race condition privilege escalation](https://junglewise.ai/threats/cve-2026-58094-freebsd-posix-shared-memory-race-condition-privilege-escalation) (high, CVSS 7.8, published 26 Aug 2026)
- [CVE-2026-58093: FreeBSD kernel use-after-free via tty ioctl race condition](https://junglewise.ai/threats/cve-2026-58093-freebsd-kernel-use-after-free-via-tty-ioctl-race-condition) (high, CVSS 7, published 26 Aug 2026)
- [CVE-2026-58092: FreeBSD kernel credential primary group ID incorrect in mac_do transition](https://junglewise.ai/threats/cve-2026-58092-freebsd-kernel-credential-primary-group-id-incorrect-in-mac-do) (high, CVSS 8.1, published 26 Aug 2026)
- [CVE-2026-58091: FreeBSD sound driver use-after-free in SNDCTL_DSP_SYNCSTART ioctl](https://junglewise.ai/threats/cve-2026-58091-freebsd-sound-driver-use-after-free-in-sndctl-dsp-syncstart-ioctl) (high, CVSS 7.8, published 26 Aug 2026)
- [CVE-2026-58090: FreeBSD unix socket use-after-free privilege escalation](https://junglewise.ai/threats/cve-2026-58090-freebsd-unix-socket-use-after-free-privilege-escalation) (high, CVSS 7.8, published 26 Aug 2026)
- [CVE-2026-58089: FreeBSD hwpmc privilege escalation in setuid exec](https://junglewise.ai/threats/cve-2026-58089-freebsd-hwpmc-privilege-escalation-in-setuid-exec) (high, CVSS 7.8, published 26 Aug 2026)
- [CVE-2026-58088: The ELF core dump code counted the number of dumpable VM map entries, allocated a buffer for the corresponding program…](https://junglewise.ai/threats/cve-2026-58088-the-elf-core-dump-code-counted-the-number-of-dumpable-vm-map) (high, CVSS 7.4, published 19 Aug 2026)
- [CVE-2026-58087: The GETALL and SETALL commands in semctl(2) recorded the number of semaphores in the target set, dropped the lock…](https://junglewise.ai/threats/cve-2026-58087-the-getall-and-setall-commands-in-semctl-2-recorded-the-number-of) (high, CVSS 7.8, published 19 Aug 2026)
- [CVE-2026-58086: As an inadvertent side effect of an unrelated code change, PRIV_KTRACE was always denied to a jailed root user…](https://junglewise.ai/threats/cve-2026-58086-as-an-inadvertent-side-effect-of-an-unrelated-code-change-priv) (high, CVSS 8.1, published 19 Aug 2026)
- [CVE-2026-58085: After dispatching a decrypt operation to OCF and receiving the result, the wg(4) driver failed to check whether the…](https://junglewise.ai/threats/cve-2026-58085-after-dispatching-a-decrypt-operation-to-ocf-and-receiving-the) (high, CVSS 7.5, published 19 Aug 2026)
- [CVE-2026-58084: To retrieve the previous timer value, the kernel calls realtimer_gettime(), which obtains the current time for the…](https://junglewise.ai/threats/cve-2026-58084-to-retrieve-the-previous-timer-value-the-kernel-calls-realtimer) (medium, CVSS 5.5, published 19 Aug 2026)
- [CVE-2026-58083: While the kernel was copying knotes during fork, a knote with a timer-based filter could fire and be enqueued on the…](https://junglewise.ai/threats/cve-2026-58083-while-the-kernel-was-copying-knotes-during-fork-a-knote-with-a) (high, CVSS 8.4, published 19 Aug 2026)

## Most severe FreeBSD vulnerabilities

- [CVE-1999-0323: FreeBSD and NetBSD file integrity bypass in mmap function](https://junglewise.ai/threats/cve-1999-0323-freebsd-and-netbsd-file-integrity-bypass-in-mmap-function) (critical, CVSS 10, published 20 Feb 1998)
- [CVE-1999-0046: Multiple Vendors rlogin buffer overflow via TERM environment variable](https://junglewise.ai/threats/cve-1999-0046-multiple-vendors-rlogin-buffer-overflow-via-term-environment) (critical, CVSS 10, published 6 Feb 1997)
- [CVE-2026-58082: The ISO-2022 encoding module used a stack buffer sized to MB_LEN_MAX (6 bytes) for intermediate character output. Some…](https://junglewise.ai/threats/cve-2026-58082-the-iso-2022-encoding-module-used-a-stack-buffer-sized-to-mb-len) (critical, CVSS 9.8, published 19 Aug 2026)
- [CVE-2026-58081: Several encoding modules, including HZ, UTF-7, VIQR, and ZW, did not properly check the size of the caller-supplied…](https://junglewise.ai/threats/cve-2026-58081-several-encoding-modules-including-hz-utf-7-viqr-and-zw-did-not) (critical, CVSS 9.8, published 19 Aug 2026)
- [CVE-2026-101306: FreeBSD jail filesystem root escape via SCM_RIGHTS](https://junglewise.ai/threats/cve-2026-101306-scm-rights-file-descriptor-passing-did-not-preserve-fd-resolve) (critical, CVSS 9.8, published 15 Oct 2026)
- [CVE-1999-0299: FreeBSD lpd buffer overflow via long DNS hostnames](https://junglewise.ai/threats/cve-1999-0299-freebsd-lpd-buffer-overflow-via-long-dns-hostnames) (critical, CVSS 9.3, published 5 Mar 1997)
- [CVE-2026-101307: FreeBSD RACK stack buffer overflow in tcp_rack](https://junglewise.ai/threats/cve-2026-101307-when-the-pcm-sample-array-needs-to-grow-the-rack-stack-doubles-a) (critical, CVSS 9.1, published 15 Oct 2026)
- [CVE-2026-58096: FreeBSD ppp out-of-bounds write in LcpDecodeConfig](https://junglewise.ai/threats/cve-2026-58096-freebsd-ppp-out-of-bounds-write-in-lcpdecodeconfig) (high, CVSS 8.8, published 26 Aug 2026)
- [CVE-2026-58095: FreeBSD ppp buffer overflow in endpoint discriminator handling](https://junglewise.ai/threats/cve-2026-58095-freebsd-ppp-buffer-overflow-in-endpoint-discriminator-handling) (high, CVSS 8.8, published 26 Aug 2026)
- [CVE-2026-49427: Pages belonging to largepage shared memory objects were not explicitly wired. When sendfile(2) transmitted such an…](https://junglewise.ai/threats/cve-2026-49427-pages-belonging-to-largepage-shared-memory-objects-were-not) (high, CVSS 8.8, published 19 Aug 2026)

## Vulnerabilities per week

10 vulnerabilities in the last four weeks, up from none in the four before. 2 critical against 0.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 22 | 2 | 0 |
| 24 Aug 2026 | 9 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 10 | 2 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "FreeBSD vulnerabilities", https://junglewise.ai/threats/technologies/freebsd, 12 November 2026.