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.
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.
Related CVEs from 2021
- CVE-2021-27417eCosCentric eCosPro RTOS Versions 2.0.1 through 4.5.3 are vu…9.8
- CVE-2021-27418GE UR firmware versions prior to version 8.1x supports web i…6.1
- CVE-2021-27419uClibc-ng versions prior to 1.0.37 are vulnerable to integer…9.8
- CVE-2021-27420GE UR firmware versions prior to version 8.1x web server tas…5.3
- CVE-2021-27421NXP MCUXpresso SDK versions prior to 2.8.2 are vulnerable to…9.8
- CVE-2021-27422GE UR firmware versions prior to version 8.1x web server int…7.5
- CVE-2021-27425Cesanta Software Mongoose-OS v2.17.0 is vulnerable to intege…9.8
- CVE-2021-27426GE UR IED firmware versions prior to version 8.1x with “Basi…9.8
- CVE-2021-27427RIOT OS version 2020.01.1 is vulnerable to integer wrap-arou…9.8
- CVE-2021-27428GE UR IED firmware versions prior to version 8.1x supports u…9.8
- CVE-2021-27429 Texas Instruments TI-RTOS returns a valid pointer to a smal…7.8
- CVE-2021-27430GE UR bootloader binary Version 7.00, 7.01 and 7.02 included…6.8
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