CVE-2021-42631

CVE-2021-42631 is a high-severity vulnerability in Printerlogic Virtual Appliance with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Description

PrinterLogic Web Stack versions 19.1.1.13 SP9 and below deserializes attacker controlled leading to pre-auth remote code execution.

Frequently asked questions

What is CVE-2021-42631?
PrinterLogic Web Stack versions 19.1.1.13 SP9 and below deserializes attacker controlled leading to pre-auth remote code execution.
How severe is CVE-2021-42631?
CVE-2021-42631 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-42631 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-42631?
CVE-2021-42631 primarily affects Printerlogic Virtual Appliance. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-42631?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-42631 published?
CVE-2021-42631 was published on 2022-01-31 and last updated on 2026-07-05.

References

Affected products (6)

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