# OpenBSD vulnerabilities

Source: https://junglewise.ai/threats/vendors/openbsd  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/vendors/openbsd.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 37 vulnerabilities in OpenBSD: 0 in the last 7 days and 3 in the last 90 days, 4 of them critical and 2 exploited in the wild. The most recent, CVE-2026-123158, was published on 5 November 2026. 1 vulnerability in the last four weeks, level on the four before (1). 1 critical against 0, 1 exploited in the wild against 0. 2 technologies have a page of their own.

## Counts

- Last 7 days: 0
- Last 30 days: 1
- Last 90 days: 3
- All time: 37 (4 critical, 2 exploited in the wild)

## About OpenBSD

The OpenBSD project produces a free, multi-platform 4.4BSD-based UNIX-like operating system and various security-focused software tools.

## Latest OpenBSD vulnerabilities

- [CVE-2026-123158: OpenSSH password authentication bypass on musl libc without PAM](https://junglewise.ai/threats/cve-2026-123158-sshd-in-openssh-before-10-6p2-on-linux-when-musl-libc-is-used) (critical, exploited in the wild, CVSS 8.1, published 5 Nov 2026)
- [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-2026-73283: In sshd in OpenSSH before 10.5, the restrict keyword (in authorized_keys) was supposed to be applicable to tunnel…](https://junglewise.ai/threats/cve-2026-73283-in-sshd-in-openssh-before-10-5-the-restrict-keyword-in-authorized) (low, CVSS 2.5, published 11 Aug 2026)
- [CVE-2026-73282: In ssh in OpenSSH before 10.5, a use-after-free for realloc data can occur if a certain pair of remote-forwarding…](https://junglewise.ai/threats/cve-2026-73282-in-ssh-in-openssh-before-10-5-a-use-after-free-for-realloc-data) (medium, CVSS 4.8, published 11 Aug 2026)
- [CVE-2026-73281: In ssh-agent in OpenSSH before 10.5, some operations can occur remotely but were intended to occur only locally…](https://junglewise.ai/threats/cve-2026-73281-in-ssh-agent-in-openssh-before-10-5-some-operations-can-occur) (low, CVSS 3.5, published 11 Aug 2026)
- [CVE-2026-60002: OpenSSH use-after-free in ssh client during key re-exchange](https://junglewise.ai/threats/cve-2026-60002-openssh-use-after-free-in-ssh-client-during-key-re-exchange) (high, CVSS 7.7, published 8 Jul 2026)
- [CVE-2026-60001: OpenSSH sshd failure to enforce minimum authentication delay](https://junglewise.ai/threats/cve-2026-60001-openssh-sshd-failure-to-enforce-minimum-authentication-delay) (medium, CVSS 6.5, published 8 Jul 2026)
- [CVE-2026-60000: OpenBSD OpenSSH denial of service in GSSAPIAuthentication](https://junglewise.ai/threats/cve-2026-60000-openbsd-openssh-denial-of-service-in-gssapiauthentication) (low, CVSS 3.7, published 8 Jul 2026)
- [CVE-2026-59999: OpenSSH sshd configuration bypass in DisableForwarding directive](https://junglewise.ai/threats/cve-2026-59999-openssh-sshd-configuration-bypass-in-disableforwarding-directive) (medium, CVSS 5.9, published 8 Jul 2026)
- [CVE-2026-59998: OpenSSH sshd GSSAPIStrictAcceptorCheck bypass in Active Directory](https://junglewise.ai/threats/cve-2026-59998-openssh-sshd-gssapistrictacceptorcheck-bypass-in-active-directory) (medium, CVSS 4.8, published 8 Jul 2026)
- [CVE-2026-59997: OpenSSH internal-sftp argument truncation in sshd](https://junglewise.ai/threats/cve-2026-59997-openssh-internal-sftp-argument-truncation-in-sshd) (medium, CVSS 4.2, published 8 Jul 2026)
- [CVE-2026-59996: OpenBSD OpenSSH path traversal in scp remote-to-remote copy](https://junglewise.ai/threats/cve-2026-59996-openbsd-openssh-path-traversal-in-scp-remote-to-remote-copy) (medium, CVSS 4.2, published 8 Jul 2026)
- [CVE-2026-59995: OpenBSD OpenSSH path traversal in sftp client](https://junglewise.ai/threats/cve-2026-59995-openbsd-openssh-path-traversal-in-sftp-client) (medium, CVSS 4.2, published 8 Jul 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-2026-56099: OpenBSD kernel stack memory disclosure in mpls_do_error](https://junglewise.ai/threats/cve-2026-56099-openbsd-kernel-stack-memory-disclosure-in-mpls-do-error) (medium, CVSS 5.3, published 18 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-2026-35414: OpenBSD OpenSSH incorrect principal matching in sshd via authorized_keys](https://junglewise.ai/threats/cve-2026-35414-openbsd-openssh-incorrect-principal-matching-in-sshd-via) (medium, CVSS 4.2, published 2 Apr 2026)
- [CVE-2026-35388: OpenSSH connection multiplexing confirmation bypass in proxy mode](https://junglewise.ai/threats/cve-2026-35388-openssh-connection-multiplexing-confirmation-bypass-in-proxy-mode) (low, CVSS 2.5, published 2 Apr 2026)
- [CVE-2026-35387: OpenSSH unintended ECDSA algorithm acceptance in sshd config](https://junglewise.ai/threats/cve-2026-35387-openssh-unintended-ecdsa-algorithm-acceptance-in-sshd-config) (low, CVSS 3.1, published 2 Apr 2026)
- [CVE-2026-35386: OpenSSH command injection via shell metacharacters in username](https://junglewise.ai/threats/cve-2026-35386-openssh-command-injection-via-shell-metacharacters-in-username) (low, CVSS 3.6, published 2 Apr 2026)
- [CVE-2026-35385: OpenSSH scp improper permission preservation in legacy mode](https://junglewise.ai/threats/cve-2026-35385-openssh-scp-improper-permission-preservation-in-legacy-mode) (high, CVSS 7.5, published 2 Apr 2026)
- [CVE-2026-3497: OpenSSH GSSAPI uninitialized variable use in Linux distributions](https://junglewise.ai/threats/cve-2026-3497-openssh-gssapi-uninitialized-variable-use-in-linux-distributions) (high, CVSS 7.5, published 12 Mar 2026)
- [CVE-2025-61985: OpenSSH code execution via null byte injection in ssh URIs](https://junglewise.ai/threats/cve-2025-61985-openssh-code-execution-via-null-byte-injection-in-ssh-uris) (low, CVSS 3.6, published 6 Oct 2025)

## 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-2026-123158: OpenSSH password authentication bypass on musl libc without PAM](https://junglewise.ai/threats/cve-2026-123158-sshd-in-openssh-before-10-6p2-on-linux-when-musl-libc-is-used) (critical, exploited in the wild, CVSS 8.1, published 5 Nov 2026)
- [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-2023-28531: OpenSSH ssh-add destination constraint bypass for smartcard keys](https://junglewise.ai/threats/cve-2023-28531-openssh-ssh-add-destination-constraint-bypass-for-smartcard-keys) (critical, CVSS 9.8, published 17 Mar 2023)
- [CVE-2026-60002: OpenSSH use-after-free in ssh client during key re-exchange](https://junglewise.ai/threats/cve-2026-60002-openssh-use-after-free-in-ssh-client-during-key-re-exchange) (high, CVSS 7.7, published 8 Jul 2026)
- [CVE-2026-35385: OpenSSH scp improper permission preservation in legacy mode](https://junglewise.ai/threats/cve-2026-35385-openssh-scp-improper-permission-preservation-in-legacy-mode) (high, CVSS 7.5, published 2 Apr 2026)
- [CVE-2026-3497: OpenSSH GSSAPI uninitialized variable use in Linux distributions](https://junglewise.ai/threats/cve-2026-3497-openssh-gssapi-uninitialized-variable-use-in-linux-distributions) (high, CVSS 7.5, published 12 Mar 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-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)

## Vulnerabilities per week

1 vulnerability in the last four weeks, level on the four before (1). 1 critical against 0, 1 exploited in the wild against 0.

| 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 | 1 | 1 | 1 |
| 9 Nov 2026 | 0 | 0 | 0 |

## OpenBSD technologies

- [OpenBSD OpenSSH](https://junglewise.ai/threats/technologies/openssh): 28 vulnerabilities
- [Openbsd](https://junglewise.ai/threats/technologies/openbsd): 13 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/vendors/openbsd, 13 November 2026.