CVE-2021-27424
MEDIUMCVSS 5.3/10EPSS 0.84%
Last modified
CVE-2021-27424 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. GE UR firmware versions prior to version 8.1x shares MODBUS memory map as part of the communications guide. GE was made aware a “Last-key pressed” MODBUS register can be used to gain unauthorized information.. EPSS estimates a 0.84% chance of exploitation in the next 30 days.
Description
GE UR firmware versions prior to version 8.1x shares MODBUS memory map as part of the communications guide. GE was made aware a “Last-key pressed” MODBUS register can be used to gain unauthorized information.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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-2021-27424?
GE UR firmware versions prior to version 8.1x shares MODBUS memory map as part of the communications guide. GE was made aware a “Last-key pressed” MODBUS register can be used to gain unauthorized information.
How severe is CVE-2021-27424?
CVE-2021-27424 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.84% probability of exploitation in the next 30 days.
How do I fix CVE-2021-27424?
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.
Are you affected by CVE-2021-27424?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST