Cyber Resilience

CVE-2023-29950

MediumPublic PoC

Published: 27 April 2023

Published
27 April 2023
Modified
31 January 2025
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 0.0013 31.5th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-29950 is a medium-severity Out-of-bounds Write (CWE-787) vulnerability in Swftools Swftools. Its CVSS base score is 5.5 (Medium).

Operationally, ranked at the 31.5th 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 details

swfrender v0.9.2 was discovered to contain a heap buffer overflow in the function enumerateUsedIDs_fillstyle at modules/swftools.c

CWE(s)
CWE-787

Related Threats

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

Affected Assets

swftools
swftools
0.9.2

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