CVE-2021-27426
CRITICALCVSS 9.8/10EPSS 1.16%
Last modified
CVE-2021-27426 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. GE UR IED firmware versions prior to version 8.1x with “Basic” security variant does not allow the disabling of the “Factory Mode,” which is used for servicing the IED by a “Factory” user.. EPSS estimates a 1.16% chance of exploitation in the next 30 days.
Description
GE UR IED firmware versions prior to version 8.1x with “Basic” security variant does not allow the disabling of the “Factory Mode,” which is used for servicing the IED by a “Factory” user.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Ge | Multilin B30 Firmware | < 8.10 |
| Ge | Multilin B90 Firmware | < 8.10 |
| Ge | Multilin C60 Firmware | < 8.10 |
| Ge | Multilin C70 Firmware | < 8.10 |
| Ge | Multilin C95 Firmware | < 8.10 |
| Ge | Multilin D30 Firmware | < 8.10 |
| Ge | Multilin D60 Firmware | < 8.10 |
| Ge | Multilin F35 Firmware | < 8.10 |
| Ge | Multilin F60 Firmware | < 8.10 |
| Ge | Multilin G30 Firmware | < 8.10 |
| Ge | Multilin G60 Firmware | < 8.10 |
| Ge | Multilin L30 Firmware | < 8.10 |
| Ge | Multilin L60 Firmware | < 8.10 |
| Ge | Multilin L90 Firmware | < 8.10 |
| Ge | Multilin M60 Firmware | < 8.10 |
| Ge | Multilin N60 Firmware | < 8.10 |
| Ge | Multilin T35 Firmware | < 8.10 |
| Ge | Multilin T60 Firmware | < 8.10 |
| Ge | Multilin C30 Firmware | < 8.10 |
References
- 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
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-27426?
GE UR IED firmware versions prior to version 8.1x with “Basic” security variant does not allow the disabling of the “Factory Mode,” which is used for servicing the IED by a “Factory” user.
How severe is CVE-2021-27426?
CVE-2021-27426 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.16% probability of exploitation in the next 30 days.
How do I fix CVE-2021-27426?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-27426?
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