Cyber Resilience

CVE-2021-44738

Critical

Published: 20 January 2022

Published
20 January 2022
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0965 93.1th percentile
Risk Priority 25 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-44738 is a critical-severity Classic Buffer Overflow (CWE-120) vulnerability in Lexmark Mc3426 Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 6.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Buffer overflow vulnerability has been identified in Lexmark devices through 2021-12-07 in postscript interpreter.

CWE(s)
CWE-120

Related Threats

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

Affected Assets

lexmark
b2236 firmware
≤ mslsg.076.294
lexmark
mb2236 firmware
≤ mxlsg.076.294
lexmark
ms431 firmware
≤ mslbd.076.294
lexmark
ms331 firmware
≤ mslbd.076.294
lexmark
m1342 firmware
≤ mslbd.076.294
lexmark
b3442 firmware
≤ mslbd.076.294
lexmark
b3340 firmware
≤ mslbd.076.294
lexmark
xm1342 firmware
≤ mslbd.076.294
lexmark
mx331 firmware
≤ mxlbd.076.294
lexmark
mx431 firmware
≤ mxlbd.076.294
+224 more product configuration(s) — see NVD for full list

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.

SC-27 Platform-independent Applications
addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

References