Cyber Resilience

CVE-2021-3965

High

Published: 14 January 2022

Published
14 January 2022
Modified
21 November 2024
KEV Added
Patch
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 0.0026 49.2th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-3965 is a high-severity Authorization Bypass Through User-Controlled Key (CWE-639) vulnerability in Hp Designjet T920 Cr355A Firmware. Its CVSS base score is 7.5 (High).

Operationally, ranked at the 49.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Certain HP DesignJet products may be vulnerable to unauthenticated HTTP requests which allow viewing and downloading of print job previews.

CWE(s)

Related Threats

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

Affected Assets

hp
designjet t920 cr355a firmware
mry_07_07_04.1
hp
designjet t920 cr355b firmware
mry_07_07_04.1
hp
designjet t920 cr354a firmware
mry_07_07_04.1
hp
designjet t930 l2y22a firmware
mry_07_07_04.1
hp
designjet t930 l2y22b firmware
mry_07_07_04.1
hp
designjet t930 l2y21a firmware
mry_07_07_04.1
hp
designjet t930 l2y21b firmware
mry_07_07_04.1
hp
designjet t1530 l2y24a firmware
mry_07_07_04.1
hp
designjet t1530 l2y24b firmware
mry_07_07_04.1
hp
designjet t1530 l2y23a firmware
mry_07_07_04.1
+17 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.

addresses: CWE-639

Per-request decision making makes it harder to bypass authorization using user-controlled keys without proper validation in the decision process.

addresses: CWE-639

Consistent enforcement of approved authorizations makes bypassing via user-controlled keys ineffective.

References