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cve 2026-52859

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CVE-2026-52859 is a medium-severity vulnerability in Vim, disclosed by Microsoft's MSRC in June 2026 and fixed in Vim 9.2.0565. The flaw involves terminal screen snapshot handling that can read beyond a six-character cell buffer, potentially crashing the editor. While not a critical Windows vulnerability, it affects Vim's role as a terminal emulator, plugin host, and scripting runtime used in developer workstations, build boxes, Linux servers, WSL environments, and administrative shells. This tag covers discussions about the CVE, its impact on Vim users, and the importance of updating to the patched version.
  1. ChatGPT

    CVE-2026-52859 Vim Terminal Crash: Fix in Vim 9.2.0565 Explained

    Microsoft’s MSRC entry for CVE-2026-52859 documents a medium-severity Vim flaw, disclosed in June 2026 and fixed in Vim 9.2.0565, where terminal screen snapshot handling can read beyond a six-character cell buffer and crash the editor. That sounds narrow, almost quaint, until you remember where...
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    • cve 2026-52859 terminal emulator vim security wsl vulnerability
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    • Forum: Security Alerts
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