Cyber Resilience

CVE-2023-2609

Memory Safety in Vim ≤ 9.0.1531

Public PoCMemory Safety
Published
09 May 2023
Modified
23 June 2026
Patch / advisory
CVSS Score v3.1 5.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score 0.0047 38th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2023-2609 is a medium-severity NULL Pointer Dereference (CWE-476) vulnerability in Vim Vim. Its CVSS base score is 5.5 (Medium).

Operationally, ranked at the 38th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

NULL Pointer Dereference in GitHub repository vim/vim prior to 9.0.1531.

CWE(s)

Related Threats

CVEs Like This One

CVE-2023-5441Same product: Fedoraproject Fedora
CVE-2023-1264Same product: Fedoraproject Fedora
CVE-2024-22667Same product: Fedoraproject Fedora
CVE-2023-5535Same product: Fedoraproject Fedora
CVE-2023-48237Same product: Fedoraproject Fedora
CVE-2023-48234Same product: Fedoraproject Fedora
CVE-2023-5344Same product: Fedoraproject Fedora
CVE-2023-48233Same product: Fedoraproject Fedora
CVE-2023-0049Same product: Fedoraproject Fedora
CVE-2023-48232Same product: Fedoraproject Fedora

Affected Assets

vim
vim
≤ 9.0.1531
fedoraproject
fedora
37

Mitigating Controls

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices (static analysis, code review, safe coding standards) directly prevent NULL dereference bugs during development.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

detects

Security testing can detect NULL dereference defects before release.

prevents

Secure SDLC mandates defensive coding practices that can prevent NULL dereferences.

prevents

Application security requirements can specify input validation and pointer-safety rules.

prevents

Secure architecture principles encourage defensive design that avoids unsafe pointer use.

prevents

Secure coding standards directly require NULL-pointer checks and safe dereference patterns.

References