Cyber Resilience

CVE-2023-33220

Critical

Published: 15 December 2023

Published
15 December 2023
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS Score 0.0086 75.4th percentile
Risk Priority 19 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-33220 is a critical-severity Stack-based Buffer Overflow (CWE-121) vulnerability in Idemia Sigma Lite Firmware. Its CVSS base score is 9.1 (Critical).

Operationally, ranked in the top 24.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

During the retrofit validation process, the firmware doesn't properly check the boundaries while copying some attributes to check. This allows a stack-based buffer overflow that could lead to a potential Remote Code Execution on the targeted device

CWE(s)
CWE-121CWE-787

Related Threats

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

Affected Assets

idemia
sigma lite firmware
≤ 4.15.5
idemia
sigma lite\+ firmware
≤ 4.15.5
idemia
sigma extreme firmware
≤ 4.15.5
idemia
sigma wide firmware
≤ 4.15.5
idemia
morphowave compact firmware
≤ 2.12.2
idemia
morphowave xp firmware
≤ 2.12.2
idemia
visionpass firmware
≤ 2.12.2
idemia
morphowave sp firmware
≤ 1.2.7

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