MEDIUM
CVE-2021-27430
CWE-798Published: March 23, 2022· Updated: Jun 17, 2026
6.8
CVSS v3.1
Official Description
GE UR bootloader binary Version 7.00, 7.01 and 7.02 included unused hardcoded credentials. Additionally, a user with physical access to the UR IED can interrupt the boot sequence by rebooting the UR.
Technical Analysis
CVE-2021-27430 requires local access, meaning attackers must already have a foothold on the target system.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.8.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorPhysical
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Vendors & Products
ge1 product(s)
ur bootloader binary
Source: NVD CPE · 3 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (4)
→
https://www.cisa.gov/uscert/ics/advisories/icsa-21-075-02Mitigation · Third Party Advisory · US Government Resource
→
https://www.gegridsolutions.com/Passport/Login.aspxPermissions Required · Vendor Advisory
→
https://www.cisa.gov/uscert/ics/advisories/icsa-21-075-02Mitigation · Third Party Advisory · US Government Resource
→
https://www.gegridsolutions.com/Passport/Login.aspxPermissions Required · Vendor Advisory
Quick Facts
CVE IDCVE-2021-27430
CVSS Score6.8 / 10
SeverityMEDIUM
WeaknessCWE-798
CISA KEVNo
Affected1 vendor(s)
PublishedMar 23, 2022
Related CVEs (CWE-798)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2021-27430 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.