Cyber Resilience

CVE-2023-0049

Memory Safety in Fedoraproject Fedora 36 … 37

Public PoCMemory Safety
Published
04 January 2023
Modified
17 January 2025
Patch / advisory
CVSS Score v3.1 7.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0047 38th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2023-0049 is a high-severity Out-of-bounds Read (CWE-125) vulnerability in Fedoraproject Fedora. Its CVSS base score is 7.8 (High).

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.

EU & UK References

Vulnerability Data

Out-of-bounds Read in GitHub repository vim/vim prior to 9.0.1143.

CWE(s)

Related Threats

CVEs Like This One

CVE-2023-2609Same product: Fedoraproject Fedora
CVE-2023-1127Same product: Fedoraproject Fedora
CVE-2023-1264Same product: Fedoraproject Fedora
CVE-2026-52859Same product: Vim Vim
CVE-2026-57454Same product: Vim Vim
CVE-2026-57451Same product: Vim Vim
CVE-2026-28418Same product: Vim Vim
CVE-2026-28419Same product: Vim Vim
CVE-2026-28420Same product: Vim Vim
CVE-2026-57452Same product: Vim Vim

Affected Assets

vim
vim
≤ 9.0.1143
fedoraproject
fedora
36, 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-development practices such as bounds checking and memory-safe languages directly prevent out-of-bounds reads.

ID.RA-01 partial match
prevents

Vulnerability scanning and recording can discover instances of out-of-bounds reads after code is deployed.

PR.PS-02 partial match
prevents

Routine patching replaces vulnerable code containing out-of-bounds read flaws.

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 in development and acceptance includes fuzzing and static analysis that detect out-of-bounds read defects before release.

A.8.15 Logging partial match
detects

Logging can record evidence of an out-of-bounds read but does not prevent the weakness itself.

prevents

Secure development life cycle mandates input validation and bounds checking that directly prevent out-of-bounds reads.

prevents

Application security requirements include explicit bounds and memory-safety specifications that mitigate buffer over-reads.

prevents

Secure system architecture and engineering principles require memory-safe design patterns and runtime protections against out-of-bounds access.

prevents

Secure coding standards explicitly forbid unsafe pointer arithmetic and mandate bounds-checked reads, eliminating CWE-125.

References