CVE-2021-27420
What it is
GE 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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. Limited direct impact.
- Exploit odds
- 1.0% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 1.0% in the next 30 days (EPSS).
- Severity: 5.3 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 1.0% · EPSS, next 30 days
- Weakness
- CWE-20 · Improper input validation
- Record status
- Modified
Affected
- 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
Attack profile CVSS 3.1 · 5.3
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2021-27420.md and follow it. Check whether this project is affected by CVE-2021-27420. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-075-02
- https://www.gegridsolutions.com/Passport/Login.aspx
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-075-02
- https://www.gegridsolutions.com/Passport/Login.aspx