# Openbsd vulnerabilities

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

Junglewise Threat Intelligence has tracked 13 vulnerabilities in Openbsd: 0 in the last 7 days and 2 in the last 90 days, 2 of them critical and 1 exploited in the wild. The most recent, CVE-2026-103547, was published on 30 September 2026. Nothing in the last four weeks, down from 1 vulnerability in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 2
- All time: 13 (2 critical, 1 exploited in the wild)

## About Openbsd

OpenBSD is a free, open-source Unix-like operating system emphasizing security and code correctness.

## Latest Openbsd vulnerabilities

- [CVE-2026-103547: OpenBSD ldapd LDAP Bind authentication confusion attack](https://junglewise.ai/threats/cve-2026-103547-in-ldapd-in-openbsd-7-8-before-errata-057-and-7-9-before-errata) (info, published 30 Sep 2026)
- [CVE-2026-56101: OpenBSD TKIP MIC-failure countermeasure inverted comparison](https://junglewise.ai/threats/cve-2026-56101-openbsd-tkip-mic-failure-countermeasure-inverted-comparison) (medium, CVSS 5.3, published 8 Sep 2026)
- [CVE-2026-57589: OpenBSD use-after-free in System V semaphore implementation](https://junglewise.ai/threats/cve-2026-57589-openbsd-use-after-free-in-system-v-semaphore-implementation) (high, CVSS 7.4, published 25 Jun 2026)
- [CVE-2026-55706: OpenBSD auth bypass and heap over-read in sppp_pap_input](https://junglewise.ai/threats/cve-2026-55706-openbsd-auth-bypass-and-heap-over-read-in-sppp-pap-input) (medium, CVSS 5.8, published 17 Jun 2026)
- [CVE-2026-41285: In OpenBSD through 7.8, the slaacd and rad daemons have an infinite loop when they receive a crafted ICMPv6 Neighbor…](https://junglewise.ai/threats/cve-2026-41285-in-openbsd-through-7-8-the-slaacd-and-rad-daemons-have-an) (medium, CVSS 4.3, published 21 Apr 2026)
- [CVE-2020-7247: OpenSMTPD Remote Code Execution Vulnerability](https://junglewise.ai/threats/cve-2020-7247-opensmtpd-remote-code-execution-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 25 Mar 2022)
- [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-1999-0304: BSD mmap memory modification via kmem devices](https://junglewise.ai/threats/cve-1999-0304-bsd-mmap-memory-modification-via-kmem-devices) (high, CVSS 7.2, published 1 Feb 1998)
- [CVE-1999-0305: BSD sysctl improper restriction of source routed packets](https://junglewise.ai/threats/cve-1999-0305-bsd-sysctl-improper-restriction-of-source-routed-packets) (medium, CVSS 5, published 1 Feb 1998)
- [CVE-1999-0061: BSD lpd remote command execution and file manipulation](https://junglewise.ai/threats/cve-1999-0061-bsd-lpd-remote-command-execution-and-file-manipulation) (medium, CVSS 5.1, published 2 Oct 1997)
- [CVE-1999-1214: BSD Kernel Improper Credential Validation in Asynchronous I/O](https://junglewise.ai/threats/cve-1999-1214-bsd-kernel-improper-credential-validation-in-asynchronous-i-o) (low, CVSS 2.1, published 15 Sep 1997)
- [CVE-1999-1225: Linux and Ultrix Information Disclosure in rpc.mountd](https://junglewise.ai/threats/cve-1999-1225-linux-and-ultrix-information-disclosure-in-rpc-mountd) (medium, CVSS 5, published 24 Aug 1997)
- [CVE-1999-1296: MIT Kerberos buffer overflow in Kerberos IV compatibility library](https://junglewise.ai/threats/cve-1999-1296-mit-kerberos-buffer-overflow-in-kerberos-iv-compatibility-library) (high, CVSS 7.2, published 29 Apr 1997)

## Most severe Openbsd vulnerabilities

- [CVE-2020-7247: OpenSMTPD Remote Code Execution Vulnerability](https://junglewise.ai/threats/cve-2020-7247-opensmtpd-remote-code-execution-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 25 Mar 2022)
- [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-2026-57589: OpenBSD use-after-free in System V semaphore implementation](https://junglewise.ai/threats/cve-2026-57589-openbsd-use-after-free-in-system-v-semaphore-implementation) (high, CVSS 7.4, published 25 Jun 2026)
- [CVE-1999-0304: BSD mmap memory modification via kmem devices](https://junglewise.ai/threats/cve-1999-0304-bsd-mmap-memory-modification-via-kmem-devices) (high, CVSS 7.2, published 1 Feb 1998)
- [CVE-1999-1296: MIT Kerberos buffer overflow in Kerberos IV compatibility library](https://junglewise.ai/threats/cve-1999-1296-mit-kerberos-buffer-overflow-in-kerberos-iv-compatibility-library) (high, CVSS 7.2, published 29 Apr 1997)
- [CVE-2026-55706: OpenBSD auth bypass and heap over-read in sppp_pap_input](https://junglewise.ai/threats/cve-2026-55706-openbsd-auth-bypass-and-heap-over-read-in-sppp-pap-input) (medium, CVSS 5.8, published 17 Jun 2026)
- [CVE-2026-56101: OpenBSD TKIP MIC-failure countermeasure inverted comparison](https://junglewise.ai/threats/cve-2026-56101-openbsd-tkip-mic-failure-countermeasure-inverted-comparison) (medium, CVSS 5.3, published 8 Sep 2026)
- [CVE-1999-0061: BSD lpd remote command execution and file manipulation](https://junglewise.ai/threats/cve-1999-0061-bsd-lpd-remote-command-execution-and-file-manipulation) (medium, CVSS 5.1, published 2 Oct 1997)
- [CVE-1999-0305: BSD sysctl improper restriction of source routed packets](https://junglewise.ai/threats/cve-1999-0305-bsd-sysctl-improper-restriction-of-source-routed-packets) (medium, CVSS 5, published 1 Feb 1998)
- [CVE-1999-1225: Linux and Ultrix Information Disclosure in rpc.mountd](https://junglewise.ai/threats/cve-1999-1225-linux-and-ultrix-information-disclosure-in-rpc-mountd) (medium, CVSS 5, published 24 Aug 1997)

## Vulnerabilities per week

Nothing in the last four weeks, down from 1 vulnerability in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 1 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 1 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 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 |

## Other OpenBSD technologies

- [OpenBSD OpenSSH](https://junglewise.ai/threats/technologies/openssh): 28 vulnerabilities

## 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, "Openbsd vulnerabilities", https://junglewise.ai/threats/technologies/openbsd, 12 November 2026.