CVE-2023-4735
CVE-2023-4735 is a high-severity vulnerability in Vim with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- EPSS exploit prediction: 1% (46th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Vim
- Published:
- Last modified:
Description
Out-of-bounds Write in GitHub repository vim/vim prior to 9.0.1847.
Frequently asked questions
- What is CVE-2023-4735?
- Out-of-bounds Write in GitHub repository vim/vim prior to 9.0.1847.
- How severe is CVE-2023-4735?
- CVE-2023-4735 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2023-4735 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-4735?
- CVE-2023-4735 primarily affects Vim. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2023-4735?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2023-4735 published?
- CVE-2023-4735 was published on 2023-09-02 and last updated on 2026-06-23.
References
- http://seclists.org/fulldisclosure/2023/Oct/24
- https://github.com/vim/vim/commit/889f6af37164775192e33b233a90e86fd3df0f57
- https://huntr.dev/bounties/fc83bde3-f621-42bd-aecb-8c1ae44cba51
- https://support.apple.com/kb/HT213984
Affected products (2)
- cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:14.1:*:*:*:*:*:*:*
More vulnerabilities in Vim
- CVE-2020-20703 — Critical (CVSS 9.8): Buffer Overflow vulnerability in VIM v.8.1.2135 allows a remote attacker to execute arbitrary code via the operand…
- CVE-2022-3520 — Critical (CVSS 9.8): Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.0765.
- CVE-2022-0318 — Critical (CVSS 9.8): Heap-based Buffer Overflow in vim/vim prior to 8.2.
- CVE-2017-6350 — Critical (CVSS 9.8): An integer overflow at an unserialize_uep memory allocation site would occur for vim before patch 8.0.0378, if it does…
- CVE-2017-6349 — Critical (CVSS 9.8): An integer overflow at a u_read_undo memory allocation site would occur for vim before patch 8.0.0377, if it does not…
- CVE-2017-5953 — Critical (CVSS 9.8): vim before patch 8.0.0322 does not properly validate values for tree length when handling a spell file, which may…
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