CVE-2021-42631
HighCVSS 8.1Exploitation Probability (EPSS)
Very high risk93th percentile - higher than 93% of all known CVEs
Summary
PrinterLogic Web Stack versions 19.1.1.13 SP9 and below deserialize attacker-controlled data, leading to pre-authentication remote code execution.
Risk Assessment
An unauthenticated attacker can remotely execute arbitrary code on the server, potentially leading to full system compromise, data theft, or service disruption.
Recommendation
Immediately upgrade PrinterLogic Web Stack to a version later than 19.1.1.13 SP9 that includes a fix for the deserialization vulnerability.
Other vulnerabilities in PrinterLogic Web Stack
See all- CVE-2021-42640Critical
An IDOR vulnerability in PrinterLogic Web Stack versions 19.1.1.13 SP9 and below allows an unauthenticated attacker to reassign drivers for any printer.
- CVE-2021-42637Critical
An SSRF vulnerability in PrinterLogic Web Stack versions 19.1.1.13 SP9 and below allows an attacker to use user-controlled input to craft a URL, enabling server-side requests to internal network resources.
- CVE-2021-42638High
PrinterLogic Web Stack versions 19.1.1.13 SP9 and below are vulnerable to pre-authentication remote code execution due to insufficient input sanitization.
- CVE-2021-42635High
The vulnerability in PrinterLogic Web Stack versions 19.1.1.13 SP9 and below is due to a hardcoded APP_KEY value. This allows pre-authentication remote code execution.
- CVE-2021-42642High
An IDOR vulnerability in PrinterLogic Web Stack versions 19.1.1.13 SP9 and below allows an unauthenticated attacker to disclose the plaintext console username and password for a printer.
- CVE-2021-42641High
An IDOR vulnerability in PrinterLogic Web Stack versions 19.1.1.13 SP9 and below allows an unauthenticated attacker to disclose usernames and email addresses of all users.
- CVE-2021-42639Medium
Reflected XSS vulnerability in PrinterLogic Web Stack versions 19.1.1.13 SP9 and below. Attacker-controlled input is reflected back in the page without sanitization.
- CVE-2021-42633Medium
SQL Injection vulnerability in PrinterLogic Web Stack versions 19.1.1.13 SP9 and below allows an attacker to inject malicious SQL code, potentially gaining unauthorized access to additional audit records.
Original NVD description (English source)
PrinterLogic Web Stack versions 19.1.1.13 SP9 and below deserializes attacker controlled leading to pre-auth remote code execution.

