OpenBSD

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: OpenBSD 7.6 📖 ~4 min read  •  Source: OpenBSD 7.6 errata 016_nfs Errata topic: Security: nfs (All architectures) Issued: May 5, 2025 Upstream summary: Kernel of NFS server could crash if nfsd(8) is enabled and an evil NFS request is sent to […]

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: OpenBSD 7.6 📖 ~4 min read  •  Source: OpenBSD 7.6 errata 021_pledge Errata topic: Reliability: pledge (All architectures) Issued: July 1, 2025 Upstream summary: TIOCUCNTL ioctl(2) could crash the kernel if called with a non-file argument. Table of contents Symptom & Impact […]

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: OpenBSD 7.6 📖 ~4 min read  •  Source: OpenBSD 7.6 errata 023_libcrypto Errata topic: Security: libcrypto (All architectures) Issued: September 30, 2025 Upstream summary: Fix out-of-bounds read and write, memory leaks and incorrect error check for CMS enveloped data. Table of contents […]

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: OpenBSD 7.6 📖 ~4 min read  •  Source: OpenBSD 7.6 errata 003_ssh Errata topic: Reliability: ssh (hppa m88k mips64 powerpc powerpc64 sh sparc64) Issued: October 29, 2024 Upstream summary: mlkem768x25519-sha256 byte order bug on big-endian machines. Table of contents Symptom & Impact […]

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: OpenBSD 7.6 📖 ~4 min read  •  Source: OpenBSD 7.6 errata 004_aplsmc Errata topic: Reliability: aplsmc (arm64) Issued: October 31, 2024 Upstream summary: Updating Apple Silicon system firmware to the latest version cripples OpenBSD. This disabled the onboard WiFi. Table of contents […]

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: OpenBSD 7.6 📖 ~4 min read  •  Source: OpenBSD 7.6 errata 007_pffrag Errata topic: Reliability: pffrag (All architectures) Issued: February 10, 2025 Upstream summary: pf(4) could reassemble overlapping fragments into an incorrect IP packet that was too short. Table of contents Symptom […]

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: OpenBSD 7.6 📖 ~4 min read  •  Source: OpenBSD 7.6 errata 011_expat Errata topic: Reliability: expat (All architectures) Issued: April 1, 2025 Upstream summary: In libexpat fix regression of behavior introduced by previous errata. Table of contents Symptom & Impact Environment & […]

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: OpenBSD 7.6 📖 ~4 min read  •  Source: OpenBSD 7.6 errata 014_rpki Errata topic: Reliability: rpki (All architectures) Issued: April 9, 2025 Upstream summary: Incorrect internal RRDP state handling in rpki-client can lead to a denial of service. Table of contents Symptom […]

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: OpenBSD 7.6 📖 ~4 min read  •  Source: OpenBSD 7.6 errata 017_pfsyncook Errata topic: Reliability: pfsyncook (All architectures) Issued: June 17, 2025 Upstream summary: When using syncookies in pf(4), new TCP connections could run into timeout due to integer underflow. Table of […]

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: OpenBSD 7.6 📖 ~4 min read  •  Source: OpenBSD 7.6 errata 018_acme Errata topic: Reliability: acme (All architectures) Issued: June 17, 2025 Upstream summary: In acme-client(1), handle as yet unobserved "processing" state when fetching an issued certificate by retrying instead of giving […]