OpenBSD 7.6

OpenBSD 7.6 — expat — errata 005_expat — security advisory — syspatch and remediation — diagnosis and fix on OpenBSD 7.6

OpenBSD 7.6 — expat — errata 005_expat — security advisory — syspatch and remediation

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: OpenBSD 7.6 📖 ~4 min read  •  Source: OpenBSD 7.6 errata 005_expat Errata topic: Security: expat (All architectures) Issued: November 15, 2024 Related CVEs: CVE-2024-50602 Upstream summary: In libexpat fix crash within function XML_ResumeParser. CVE-2024-50602 Table of contents Symptom & Impact Environment […]

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OpenBSD 7.6 — libcrypto — errata 023_libcrypto — reliability fix — syspatch and remediation — diagnosis and fix on OpenBSD 7.6

OpenBSD 7.6 — libcrypto — errata 023_libcrypto — reliability fix — syspatch and remediation

🟠 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 […]

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OpenBSD 7.6 — ssh — errata 013_ssh — reliability fix — syspatch and remediation — diagnosis and fix on OpenBSD 7.6

OpenBSD 7.6 — ssh — errata 013_ssh — reliability fix — syspatch and remediation

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: OpenBSD 7.6 📖 ~4 min read  •  Source: OpenBSD 7.6 errata 013_ssh Errata topic: Security: ssh (All architectures) Issued: April 9, 2025 Upstream summary: sshd(8) fix the DisableForwarding directive, which was failing to disable X11 forwarding and agent forwarding as documented. Table […]

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OpenBSD 7.6 — xserver — errata 009_xserver — multiple vulnerabilities (8 CVEs) — syspatch and remediation — diagnosis and fix on OpenBSD 7.6

OpenBSD 7.6 — xserver — errata 009_xserver — multiple vulnerabilities (8 CVEs) — syspatch and remediation

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: OpenBSD 7.6 📖 ~4 min read  •  Source: OpenBSD 7.6 errata 009_xserver Errata topic: Security: xserver (All architectures) Issued: February 25, 2025 Related CVEs: CVE-2025-26594 CVE-2025-26595 CVE-2025-26596 CVE-2025-26597 CVE-2025-26598 CVE-2025-26599 CVE-2025-26600 CVE-2025-26601 Upstream summary: Multiple X server issues. CVE-2025-26594 CVE-2025-26595 CVE-2025-26596 CVE-2025-26597 […]

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OpenBSD 7.6 — perl — errata 015_perl — security advisory — syspatch and remediation — diagnosis and fix on OpenBSD 7.6

OpenBSD 7.6 — perl — errata 015_perl — security advisory — syspatch and remediation

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: OpenBSD 7.6 📖 ~4 min read  •  Source: OpenBSD 7.6 errata 015_perl Errata topic: Security: perl (All architectures) Issued: April 13, 2025 Related CVEs: CVE-2024-56406 Upstream summary: In Perl, non-ASCII bytes in the left-hand-side of the `tr` operator can overflow an insufficiently […]

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OpenBSD 7.6 — expat — errata 011_expat — reliability fix — syspatch and remediation — diagnosis and fix on OpenBSD 7.6

OpenBSD 7.6 — expat — errata 011_expat — reliability fix — syspatch and remediation

🟡 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 & […]

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OpenBSD 7.6 — xserver — errata 002_xserver — security advisory — syspatch and remediation — diagnosis and fix on OpenBSD 7.6

OpenBSD 7.6 — xserver — errata 002_xserver — security advisory — syspatch and remediation

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: OpenBSD 7.6 📖 ~4 min read  •  Source: OpenBSD 7.6 errata 002_xserver Errata topic: Security: xserver (All architectures) Issued: October 29, 2024 Related CVEs: CVE-2024-9632 Upstream summary: Fix memory allocation error in the Xkb X11 server extension. CVE-2024-9632 Table of contents Symptom […]

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OpenBSD 7.6 — pfsyncook — errata 017_pfsyncook — reliability fix — syspatch and remediation — diagnosis and fix on OpenBSD 7.6

OpenBSD 7.6 — pfsyncook — errata 017_pfsyncook — reliability fix — syspatch and remediation

🟡 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 […]

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