CVE-2021-27420

Summary

CVECVE-2021-27420
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-03-23 20:15:00 UTC
Updated2022-04-01 18:25:00 UTC
DescriptionGE UR firmware versions prior to version 8.1x web server task does not properly handle receipt of unsupported HTTP verbs, resulting in the web server becoming temporarily unresponsive after receiving a series of unsupported HTTP requests. When unresponsive, the web server is inaccessible. By itself, this is not particularly significant as the relay remains effective in all other functionality and communication channels.

Risk And Classification

Problem Types: CWE-20

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Ge Multilin B30 - All All All
Operating System Ge Multilin B30 Firmware All All All All
Hardware Ge Multilin B90 - All All All
Operating System Ge Multilin B90 Firmware All All All All
Hardware Ge Multilin C30 - All All All
Operating System Ge Multilin C30 Firmware All All All All
Hardware Ge Multilin C60 - All All All
Operating System Ge Multilin C60 Firmware All All All All
Hardware Ge Multilin C70 - All All All
Operating System Ge Multilin C70 Firmware All All All All
Hardware Ge Multilin C95 - All All All
Operating System Ge Multilin C95 Firmware All All All All
Hardware Ge Multilin D30 - All All All
Operating System Ge Multilin D30 Firmware All All All All
Hardware Ge Multilin D60 - All All All
Operating System Ge Multilin D60 Firmware All All All All
Hardware Ge Multilin F35 - All All All
Operating System Ge Multilin F35 Firmware All All All All
Hardware Ge Multilin F60 - All All All
Operating System Ge Multilin F60 Firmware All All All All
Hardware Ge Multilin G30 - All All All
Operating System Ge Multilin G30 Firmware All All All All
Hardware Ge Multilin G60 - All All All
Operating System Ge Multilin G60 Firmware All All All All
Hardware Ge Multilin L30 - All All All
Operating System Ge Multilin L30 Firmware All All All All
Hardware Ge Multilin L60 - All All All
Operating System Ge Multilin L60 Firmware All All All All
Hardware Ge Multilin L90 - All All All
Operating System Ge Multilin L90 Firmware All All All All
Hardware Ge Multilin M60 - All All All
Operating System Ge Multilin M60 Firmware All All All All
Hardware Ge Multilin N60 - All All All
Operating System Ge Multilin N60 Firmware All All All All
Hardware Ge Multilin T35 - All All All
Operating System Ge Multilin T35 Firmware All All All All
Hardware Ge Multilin T60 - All All All
Operating System Ge Multilin T60 Firmware All All All All

References

ReferenceSourceLinkTags
GE UR family | CISA CONFIRM www.cisa.gov
Grid Passport Login : GE Grid Solutions CONFIRM www.gegridsolutions.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

LEGACY: SCADA-X, DOE’s Cyber Testing for Resilient Industrial Control Systems (CyTRICS) program, Verve Industrial, and VuMetric reported these vulnerabilities to GE.

© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report