# NetBSD vulnerabilities

Source: https://junglewise.ai/threats/technologies/netbsd  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/netbsd.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 11 vulnerabilities in NetBSD: 0 in the last 7 days and 2 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-57843, was published on 11 September 2026. Nothing was published in the last eight weeks.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 2
- All time: 11 (1 critical, 0 exploited in the wild)

## About NetBSD

Free and open-source Unix-like operating system derived from BSD.

## Latest NetBSD vulnerabilities

- [CVE-2026-57843: NetBSD mm_open() information disclosure via PK_KMEM flag](https://junglewise.ai/threats/cve-2026-57843-netbsd-mm-open-information-disclosure-via-pk-kmem-flag) (medium, CVSS 5.5, published 11 Sep 2026)
- [CVE-2026-57842: NetBSD use-after-free and double-free in COMPAT_NETBSD32 msg_recv_copyin](https://junglewise.ai/threats/cve-2026-57842-netbsd-use-after-free-and-double-free-in-compat-netbsd32-msg-recv) (high, CVSS 7, published 11 Sep 2026)
- [CVE-2026-32849: NetBSD signed integer overflow in cryptodev_op](https://junglewise.ai/threats/cve-2026-32849-netbsd-signed-integer-overflow-in-cryptodev-op) (medium, CVSS 5.5, published 18 May 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-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-1999-1214: 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-1999-0074: TCP/IP Stack sequential port allocation allows spoofing](https://junglewise.ai/threats/cve-1999-0074-tcp-ip-stack-sequential-port-allocation-allows-spoofing) (medium, CVSS 6.4, published 1 Jul 1997)
- [CVE-1999-0628: BSD rwhod information disclosure of machine and user status](https://junglewise.ai/threats/cve-1999-0628-bsd-rwhod-information-disclosure-of-machine-and-user-status) (medium, CVSS 5, published 1 Jul 1997)
- [CVE-1999-0297: Vixie Cron buffer overflow in library](https://junglewise.ai/threats/cve-1999-0297-vixie-cron-buffer-overflow-in-library) (high, CVSS 7.2, published 12 Dec 1996)
- [CVE-1999-0085: IBM AIX rwhod buffer overflow via long hostname](https://junglewise.ai/threats/cve-1999-0085-ibm-aix-rwhod-buffer-overflow-via-long-hostname) (high, CVSS 7.5, published 21 Aug 1996)

## Most severe NetBSD 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-1999-0085: IBM AIX rwhod buffer overflow via long hostname](https://junglewise.ai/threats/cve-1999-0085-ibm-aix-rwhod-buffer-overflow-via-long-hostname) (high, CVSS 7.5, published 21 Aug 1996)
- [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-1999-0297: Vixie Cron buffer overflow in library](https://junglewise.ai/threats/cve-1999-0297-vixie-cron-buffer-overflow-in-library) (high, CVSS 7.2, published 12 Dec 1996)
- [CVE-2026-57842: NetBSD use-after-free and double-free in COMPAT_NETBSD32 msg_recv_copyin](https://junglewise.ai/threats/cve-2026-57842-netbsd-use-after-free-and-double-free-in-compat-netbsd32-msg-recv) (high, CVSS 7, published 11 Sep 2026)
- [CVE-1999-0074: TCP/IP Stack sequential port allocation allows spoofing](https://junglewise.ai/threats/cve-1999-0074-tcp-ip-stack-sequential-port-allocation-allows-spoofing) (medium, CVSS 6.4, published 1 Jul 1997)
- [CVE-2026-57843: NetBSD mm_open() information disclosure via PK_KMEM flag](https://junglewise.ai/threats/cve-2026-57843-netbsd-mm-open-information-disclosure-via-pk-kmem-flag) (medium, CVSS 5.5, published 11 Sep 2026)
- [CVE-2026-32849: NetBSD signed integer overflow in cryptodev_op](https://junglewise.ai/threats/cve-2026-32849-netbsd-signed-integer-overflow-in-cryptodev-op) (medium, CVSS 5.5, published 18 May 2026)
- [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-1999-0628: BSD rwhod information disclosure of machine and user status](https://junglewise.ai/threats/cve-1999-0628-bsd-rwhod-information-disclosure-of-machine-and-user-status) (medium, CVSS 5, published 1 Jul 1997)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| 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 | 2 | 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 | 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 |

## 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, "NetBSD vulnerabilities", https://junglewise.ai/threats/technologies/netbsd, 9 November 2026.