CVE-2026-1442: Unitree UPK files Hard-Coded Key
Vulnerability summary
CVE-2026-1442 is a high (CVSS 7.8) Use of Hard-coded Cryptographic Key vulnerability in unitree go1_air_firmware. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 4.2% of scored vulnerabilities. 2 public exploits are recorded.
Timeline
- 27-02-2026PublishedVulnerability first disclosed.
- 27-02-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.15%
Chance of exploitation in the next 30 days
Percentile
4%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.15% on 24-09-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
2 foundUniteabag
Maturity: poc
Exploit Reference (takeonme.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Unitree8 products
- go1_air_firmwarena
- go1_pro_firmwarena
- go2_air_firmwarena
- go2_edu_plus_firmwarena
- go2_edu_standard_firmwarena
1 vendor · 8 products