Is CVE-2021-3662 being actively exploited?

CVE-2021-3662 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2021-3662?

CVE-2021-3662 has a CVSS 3.1 base score of 5.4 (MEDIUM).

CVE-2021-3662

MEDIUM · CVSS 5.4EPSS 0.5%EU EUVD

Certain HP Enterprise LaserJet and PageWide MFPs may be vulnerable to stored cross site scripting (XSS).

Key facts

CVSS score: 5.4 (v3.1)
Severity: MEDIUM
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
EPSS score: 0.5% (39th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2021-26957)
Published: October 29, 2021
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2021-26957 in the EU Vulnerability Database. Last updated in EUVD on August 3, 2024.

View on the EU Vulnerability Database

Affected products

hp / futuresmart 4
hp / futuresmart 5

Certified products that may be affected

18 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

HP LaserJet Enterprise MFP M528 and HP LaserJet Managed MFP E52645 multifunction printers (MFPs) with HP FutureSmart 4.12 Firmware - HP Inc. - Common Criteria OCSI/CERT/ATS/03/2023/RC - active
HP Digital Sender Flow 8500 fn2 Document Capture Workstation and HP ScanJet Enterprise Flow N9120 fn2 Document Scanner with HP FutureSmart 4.12 Firmware - HP Inc. - Common Criteria OCSI/CERT/ATS/02/2023/RC - active
HP Color LaserJet Enterprise M856, HP Color LaserJet Managed E85055, and HP LaserJet Enterprise M607/M608/M609/M610/M611/M612 printers with HP FutureSmart 4.11.2.2 Firmware - HP Inc. - Common Criteria OCSI/CERT/ATS/05/2022/RC - active
HP Color LaserJet Enterprise MFP M776, HP Color LaserJet Enterprise Flow MFP M776, HP LaserJet Enterprise MFP M632/M633/M634/M635/M636, HP LaserJet Enterprise Flow MFP M634/M635/M636, HP LaserJet Managed MFP E62655/E62665, and HP LaserJet Managed MFP Flow E62665/E62675 multifunction printers (MFPs) with HP FutureSmart 4.11.2.2 Firmware - HP Inc. - Common Criteria OCSI/CERT/ATS/04/2022/RC - active
HP FutureSmart 4.10 Firmware for the HP Color LaserJet Enterprise MFP M776 and HP LaserJet Enterprise MFP M634/M635/M636 - HP Inc. - Common Criteria CSEC2019025 - active

See all 18 in the Security Certifications Explorer.

References

https://support.hp.com/us-en/document/ish_4577473-4577502-16/hpsbpi03744(Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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