Security Resilience

CVE-2023-26066

Lexmark Lw80 Firmware ≤ lw80.sb7.p234

Published
10 April 2023
Modified
11 February 2025
Patch / advisory
View advisory
CVSS Score v3.1 9.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0071 52th percentile
Risk Priority 72 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-26066 is a critical-severity Improper Validation of Array Index (CWE-129) vulnerability in Lexmark Lw80 Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Steganography (T1001.002); ranked in the top 48% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

Certain Lexmark devices through 2023-02-19 have Improper Validation of an Array Index.

CWE(s)
CWE-129

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001.002 Steganography Command And Control
Adversaries may use steganographic techniques to hide command and control traffic to make detection efforts more difficult.
attack.mitre.org →
T1001.003 Protocol or Service Impersonation Command And Control
Adversaries may impersonate legitimate protocols or web service traffic to disguise command and control activity and thwart analysis efforts.
attack.mitre.org →
T1003.002 Security Account Manager Credential Access
Adversaries may attempt to extract credential material from the Security Account Manager (SAM) database either through in-memory techniques or through the Windows Registry where the SAM database is stored.
attack.mitre.org →
T1003.003 NTDS Credential Access
Adversaries may attempt to access or create a copy of the Active Directory domain database in order to steal credential information, as well as obtain other information about domain members such as devices, users, and access rights.
attack.mitre.org →
T1003.008 /etc/passwd and /etc/shadow Credential Access
Adversaries may attempt to dump the contents of <code>/etc/passwd</code> and <code>/etc/shadow</code> to enable offline password cracking.
attack.mitre.org →
T1008 Fallback Channels Command And Control
Adversaries may use fallback or alternate communication channels if the primary channel is compromised or inaccessible in order to maintain reliable command and control and to avoid data transfer thresholds.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-26064Same product: Lexmark 6500E
CVE-2023-26063Same product: Lexmark 6500E
CVE-2023-26065Same product: Lexmark 6500E
CVE-2023-26070Same product: Lexmark 6500E
CVE-2023-26068Same product: Lexmark B2236
CVE-2023-26069Same product: Lexmark B2236
CVE-2023-26067Same product: Lexmark B2236
CVE-2025-37752Shared CWE-129
CVE-2024-38562Shared CWE-129
CVE-2024-24563Shared CWE-129

Affected Assets

lexmark
cxtpc firmware
≤ cxtpc.081.232
lexmark
cstpc firmware
≤ cstpc.081.232
lexmark
mxtct firmware
≤ mxtct.081.232
lexmark
mxtpm firmware
≤ mxtpm.081.232
lexmark
cxtmm firmware
≤ cxtmm.081.232
lexmark
mslsg firmware
≤ mslsg.081.232
lexmark
mxlsg firmware
≤ mxlsg.081.232
lexmark
mslbd firmware
≤ mslbd.081.232
lexmark
mxlbd firmware
≤ mxlbd.081.232
lexmark
msngm firmware
≤ msngm.081.232
+16 more product configuration(s) — see NVD for full list

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 partial match
blocks

Secure SDLC practices directly require input validation and bounds checking that prevent improper array indexing.

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.

A.5.14 Information transfer partial match
removes
A.5.15 Access control partial match
removes
A.5.16 Identity management partial match
removes
A.5.17 Authentication information partial match
removes
A.5.18 Access rights partial match
removes
A.8.10 Information deletion partial match
removes

References