CVE-2026-1442 | Unitree UPK files Hard-Coded Key

Exp

Since the encryption algorithm used to protect firmware updates is itself encrypted using key material available to an attacker (or anyone paying attention), the firmware updates may be altered by an unauthorized user, and then trusted by a Unitree product, such as the Unitree Go2 and other models. This issue appears to affect all of Unitree’s current offerings as of February 26, 2026, and so should be considered a vulnerability in both the firmware generation and extraction processes. At the time of this release, there is no publicly-documented mechanism to subvert the update process and insert poisoned firmware packages without the equipment owner’s knowledge.

Published: 2026-02-27 Last update: 2026-03-11 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-1442 is rated Exploit Available (50/100): CVSS High severity, with low exploitation likelihood (EPSS 0.15%). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2026-1442

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2026-1442

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.01% 0.15% +0.15%
2 2026-02-27 — 0.01% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-1442

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]

Weakness enumeration for CVE-2026-1442

Affected software / configurations for CVE-2026-1442

Vendor Product Version Raw CPE
unitree go2_edu_standard_firmware — cpe:2.3:o:unitree:go2_edu_standard_firmware:-:*:*:*:*:*:*:*
unitree go2_air_firmware — cpe:2.3:o:unitree:go2_air_firmware:-:*:*:*:*:*:*:*
unitree go2_pro_firmware — cpe:2.3:o:unitree:go2_pro_firmware:-:*:*:*:*:*:*:*
unitree go2_x_firmware — cpe:2.3:o:unitree:go2_x_firmware:-:*:*:*:*:*:*:*
unitree go1_air_firmware — cpe:2.3:o:unitree:go1_air_firmware:-:*:*:*:*:*:*:*
unitree go1_pro_firmware — cpe:2.3:o:unitree:go1_pro_firmware:-:*:*:*:*:*:*:*
unitree go2_edu_plus_firmware — cpe:2.3:o:unitree:go2_edu_plus_firmware:-:*:*:*:*:*:*:*

References for CVE-2026-1442

cvelogic Threat Intelligence