Cyber Resilience

CVE-2023-37139

MediumPublic PoC

Published: 18 July 2023

Published
18 July 2023
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score 0.0033 56.5th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-37139 is a medium-severity Out-of-bounds Write (CWE-787) vulnerability in Microsoft Chakracore. Its CVSS base score is 5.5 (Medium).

Operationally, ranked in the top 43.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

ChakraCore branch master cbb9b was discovered to contain a stack overflow vulnerability via the function Js::ScopeSlots::IsDebuggerScopeSlotArray().

CWE(s)
CWE-787

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

microsoft
chakracore
all versions

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SI-16 Memory Protection
addresses: CWE-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.

References