CVE-2024-43790— heap-buffer-overflow in do_search() in Vim < 9.1.0689
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I. Basic Information for CVE-2024-43790
Vulnerability Information
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Vulnerability Title
heap-buffer-overflow in do_search() in Vim < 9.1.0689
Source: NVD (National Vulnerability Database)
Vulnerability Description
Vim is an open source command line text editor. When performing a search and displaying the search-count message is disabled (:set shm+=S), the search pattern is displayed at the bottom of the screen in a buffer (msgbuf). When right-left mode (:set rl) is enabled, the search pattern is reversed. This happens by allocating a new buffer. If the search pattern contains some ASCII NUL characters, the buffer allocated will be smaller than the original allocated buffer (because for allocating the reversed buffer, the strlen() function is called, which only counts until it notices an ASCII NUL byte ) and thus the original length indicator is wrong. This causes an overflow when accessing characters inside the msgbuf by the previously (now wrong) length of the msgbuf. The issue has been fixed as of Vim patch v9.1.0689.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
Vim 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vim是Vim开源的一款跨平台的文本编辑器。 Vim v9.1.0689之前版本存在安全漏洞，该漏洞源于存在堆缓冲区溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2024-43790
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- https://github.com/vim/vim/commit/cacb6693c10bb19f28a50eca47bcx_refsource_MISC
- https://github.com/vim/vim/security/advisories/GHSA-v2x2-cjcg-f9jmx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2024-43790
IV. Related Vulnerabilities
Same product: vim
- CVE-2026-45130
Vim: Heap Buffer Overflow in spell file loading - CVE-2026-44656
Vim: OS Command Injection via 'path' completion - CVE-2026-42307
Vim: OS Command Injection in netrw - CVE-2026-41411
Vim: Command injection via backtick expansion in tag filenam - CVE-2026-39881
Vim Ex command injection in Vims NetBeans integration
Same vendor: vim
- CVE-2026-45130
Vim: Heap Buffer Overflow in spell file loading - CVE-2026-44656
Vim: OS Command Injection via 'path' completion - CVE-2026-42307
Vim: OS Command Injection in netrw - CVE-2026-41411
Vim: Command injection via backtick expansion in tag filenam - CVE-2026-39881
Vim Ex command injection in Vims NetBeans integration
Same weakness: CWE-122
- CVE-2025-12659
Heap-based buffer overflow in Siemens Simcenter Femap - CVE-2026-8261
Squirrel sqobject.cpp Load heap-based overflow - CVE-2026-8213
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OSGeo gdal SWapi.c SWSDfldsrch heap-based overflow - CVE-2026-42309
Pillow: Heap buffer overflow with nested list coordinates
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