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CVE-2023-50738— A firmware downgrade prevention vulnerability has been identified in newer Lexmark devices.

Quick assessment

Affected
Lexmark Printer Firmware
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Lexmark是美国利盟（Lexmark）公司的一系列打印机。 Lexmark存在安全漏洞，该漏洞源于新添加的防止固件降级功能可以被绕过。

CVSS 4.3 · Medium EPSS 0.27% · P18
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I. Basic Information for CVE-2023-50738

Vulnerability Information
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Vulnerability Title
A firmware downgrade prevention vulnerability has been identified in newer Lexmark devices.
Source: CVE Program / CVE List V5
Vulnerability Description
A new feature to prevent Firmware downgrades was recently added to some Lexmark products. A method to override this downgrade protection has been identified.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
完整性检查值验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Lexmark 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Lexmark是美国利盟（Lexmark）公司的一系列打印机。 Lexmark存在安全漏洞，该漏洞源于新添加的防止固件降级功能可以被绕过。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Lexmark Printer Firmware 0 ~ 230.041 -

II. Public POCs for CVE-2023-50738

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III. Intelligence Information for CVE-2023-50738

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Vendor Advisories for CVE-2023-50738 (1)

IV. Related Vulnerabilities

Same product: Printer Firmware
Same vendor: Lexmark
Same weakness: CWE-354

V. Comments for CVE-2023-50738

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