Cyber Resilience

CVE-2023-40239

High

Published: 01 September 2023

Published
01 September 2023
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0034 57.0th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-40239 is a high-severity Improper Restriction of XML External Entity Reference (CWE-611) vulnerability in Lexmark C2132 Firmware. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 43.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Certain Lexmark devices (such as CS310) before 2023-08-25 allow XXE attacks, leading to information disclosure. The fixed firmware version is LW80.*.P246, i.e., '*' indicates that the full version specification varies across product model family, but firmware level P246 (or higher)…

more

is required to remediate the vulnerability.

CWE(s)
CWE-611

Related Threats

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

Affected Assets

lexmark
c2132 firmware
≤ lw80.vy4.p245
lexmark
cs310 firmware
≤ lw80.vyl.p245
lexmark
cs317 firmware
≤ lw80.vyl.p245
lexmark
cs410 firmware
≤ lw80.vy2.p245
lexmark
cs417 firmware
≤ lw80.vy2.p245
lexmark
cs510 firmware
≤ lw80.vy4.p245
lexmark
cs517 firmware
≤ lw80.vy4.p245
lexmark
cx310 firmware
≤ lw80.gm2.p245
lexmark
cx317 firmware
≤ lw80.gm2.p245
lexmark
cx410 firmware
≤ lw80.gm4.p245
+72 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.

CA-8 Penetration Testing
addresses: CWE-611

Penetration testing includes XML external entity payloads, detecting XXE vulnerabilities and enabling their mitigation.

SI-4 System Monitoring
addresses: CWE-611

Identifies XML external entity processing via monitoring of unusual file/network access or resource usage.

References