GE UR family input validation
Priority LOW 32CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01032 63rd percentileScored 2026-11-07
Fix Fixed UR family (GE): 8.1x
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| GE | UR family | before 8.1x | 8.1x | Patch available | CNA |
- UR family VendorGE Affected before 8.1x Fixed in 8.1x Patch available CNA
CPE configurations NVD · 38
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:ge:multilin_b30_firmware:*:*:*:*:*:*:*:* | before 8.10 | Vulnerable | GE |
| cpe:2.3:h:ge:multilin_b30:-:*:*:*:*:*:*:* | not specified by NVD | Running on | GE |
| cpe:2.3:o:ge:multilin_b90_firmware:*:*:*:*:*:*:*:* | before 8.10 | Vulnerable | GE |
| cpe:2.3:h:ge:multilin_b90:-:*:*:*:*:*:*:* | not specified by NVD | Running on | GE |
| cpe:2.3:o:ge:multilin_c60_firmware:*:*:*:*:*:*:*:* | before 8.10 | Vulnerable | GE |
| cpe:2.3:h:ge:multilin_c60:-:*:*:*:*:*:*:* | not specified by NVD | Running on | GE |
| cpe:2.3:o:ge:multilin_c70_firmware:*:*:*:*:*:*:*:* | before 8.10 | Vulnerable | GE |
| cpe:2.3:h:ge:multilin_c70:-:*:*:*:*:*:*:* | not specified by NVD | Running on | GE |
| cpe:2.3:o:ge:multilin_c95_firmware:*:*:*:*:*:*:*:* | before 8.10 | Vulnerable | GE |
| cpe:2.3:h:ge:multilin_c95:-:*:*:*:*:*:*:* | not specified by NVD | Running on | GE |
- cpe:2.3:o:ge:multilin_b30_firmware:*:*:*:*:*:*:*:* Versions before 8.10 Vulnerable ·GE
- cpe:2.3:h:ge:multilin_b30:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·GE
- cpe:2.3:o:ge:multilin_b90_firmware:*:*:*:*:*:*:*:* Versions before 8.10 Vulnerable ·GE
- cpe:2.3:h:ge:multilin_b90:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·GE
- cpe:2.3:o:ge:multilin_c60_firmware:*:*:*:*:*:*:*:* Versions before 8.10 Vulnerable ·GE
- cpe:2.3:h:ge:multilin_c60:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·GE
- cpe:2.3:o:ge:multilin_c70_firmware:*:*:*:*:*:*:*:* Versions before 8.10 Vulnerable ·GE
- cpe:2.3:h:ge:multilin_c70:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·GE
- cpe:2.3:o:ge:multilin_c95_firmware:*:*:*:*:*:*:*:* Versions before 8.10 Vulnerable ·GE
- cpe:2.3:h:ge:multilin_c95:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·GE
Show 28 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:ge:multilin_d30_firmware:*:*:*:*:*:*:*:* | before 8.10 | Vulnerable | GE |
| cpe:2.3:h:ge:multilin_d30:-:*:*:*:*:*:*:* | not specified by NVD | Running on | GE |
| cpe:2.3:o:ge:multilin_d60_firmware:*:*:*:*:*:*:*:* | before 8.10 | Vulnerable | GE |
| cpe:2.3:h:ge:multilin_d60:-:*:*:*:*:*:*:* | not specified by NVD | Running on | GE |
| cpe:2.3:o:ge:multilin_f35_firmware:*:*:*:*:*:*:*:* | before 8.10 | Vulnerable | GE |
| cpe:2.3:h:ge:multilin_f35:-:*:*:*:*:*:*:* | not specified by NVD | Running on | GE |
| cpe:2.3:o:ge:multilin_f60_firmware:*:*:*:*:*:*:*:* | before 8.10 | Vulnerable | GE |
| cpe:2.3:h:ge:multilin_f60:-:*:*:*:*:*:*:* | not specified by NVD | Running on | GE |
| cpe:2.3:o:ge:multilin_g30_firmware:*:*:*:*:*:*:*:* | before 8.10 | Vulnerable | GE |
| cpe:2.3:h:ge:multilin_g30:-:*:*:*:*:*:*:* | not specified by NVD | Running on | GE |
| cpe:2.3:o:ge:multilin_g60_firmware:*:*:*:*:*:*:*:* | before 8.10 | Vulnerable | GE |
| cpe:2.3:h:ge:multilin_g60:-:*:*:*:*:*:*:* | not specified by NVD | Running on | GE |
| cpe:2.3:o:ge:multilin_l30_firmware:*:*:*:*:*:*:*:* | before 8.10 | Vulnerable | GE |
| cpe:2.3:h:ge:multilin_l30:-:*:*:*:*:*:*:* | not specified by NVD | Running on | GE |
| cpe:2.3:o:ge:multilin_l60_firmware:*:*:*:*:*:*:*:* | before 8.10 | Vulnerable | GE |
| cpe:2.3:h:ge:multilin_l60:-:*:*:*:*:*:*:* | not specified by NVD | Running on | GE |
| cpe:2.3:o:ge:multilin_l90_firmware:*:*:*:*:*:*:*:* | before 8.10 | Vulnerable | GE |
| cpe:2.3:h:ge:multilin_l90:-:*:*:*:*:*:*:* | not specified by NVD | Running on | GE |
| cpe:2.3:o:ge:multilin_m60_firmware:*:*:*:*:*:*:*:* | before 8.10 | Vulnerable | GE |
| cpe:2.3:h:ge:multilin_m60:-:*:*:*:*:*:*:* | not specified by NVD | Running on | GE |
| cpe:2.3:o:ge:multilin_n60_firmware:*:*:*:*:*:*:*:* | before 8.10 | Vulnerable | GE |
| cpe:2.3:h:ge:multilin_n60:-:*:*:*:*:*:*:* | not specified by NVD | Running on | GE |
| cpe:2.3:o:ge:multilin_t35_firmware:*:*:*:*:*:*:*:* | before 8.10 | Vulnerable | GE |
| cpe:2.3:h:ge:multilin_t35:-:*:*:*:*:*:*:* | not specified by NVD | Running on | GE |
| cpe:2.3:o:ge:multilin_t60_firmware:*:*:*:*:*:*:*:* | before 8.10 | Vulnerable | GE |
| cpe:2.3:h:ge:multilin_t60:-:*:*:*:*:*:*:* | not specified by NVD | Running on | GE |
| cpe:2.3:o:ge:multilin_c30_firmware:*:*:*:*:*:*:*:* | before 8.10 | Vulnerable | GE |
| cpe:2.3:h:ge:multilin_c30:-:*:*:*:*:*:*:* | not specified by NVD | Running on | GE |
- cpe:2.3:o:ge:multilin_d30_firmware:*:*:*:*:*:*:*:* Versions before 8.10 Vulnerable ·GE
- cpe:2.3:h:ge:multilin_d30:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·GE
- cpe:2.3:o:ge:multilin_d60_firmware:*:*:*:*:*:*:*:* Versions before 8.10 Vulnerable ·GE
- cpe:2.3:h:ge:multilin_d60:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·GE
- cpe:2.3:o:ge:multilin_f35_firmware:*:*:*:*:*:*:*:* Versions before 8.10 Vulnerable ·GE
- cpe:2.3:h:ge:multilin_f35:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·GE
- cpe:2.3:o:ge:multilin_f60_firmware:*:*:*:*:*:*:*:* Versions before 8.10 Vulnerable ·GE
- cpe:2.3:h:ge:multilin_f60:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·GE
- cpe:2.3:o:ge:multilin_g30_firmware:*:*:*:*:*:*:*:* Versions before 8.10 Vulnerable ·GE
- cpe:2.3:h:ge:multilin_g30:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·GE
- cpe:2.3:o:ge:multilin_g60_firmware:*:*:*:*:*:*:*:* Versions before 8.10 Vulnerable ·GE
- cpe:2.3:h:ge:multilin_g60:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·GE
- cpe:2.3:o:ge:multilin_l30_firmware:*:*:*:*:*:*:*:* Versions before 8.10 Vulnerable ·GE
- cpe:2.3:h:ge:multilin_l30:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·GE
- cpe:2.3:o:ge:multilin_l60_firmware:*:*:*:*:*:*:*:* Versions before 8.10 Vulnerable ·GE
- cpe:2.3:h:ge:multilin_l60:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·GE
- cpe:2.3:o:ge:multilin_l90_firmware:*:*:*:*:*:*:*:* Versions before 8.10 Vulnerable ·GE
- cpe:2.3:h:ge:multilin_l90:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·GE
- cpe:2.3:o:ge:multilin_m60_firmware:*:*:*:*:*:*:*:* Versions before 8.10 Vulnerable ·GE
- cpe:2.3:h:ge:multilin_m60:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·GE
- cpe:2.3:o:ge:multilin_n60_firmware:*:*:*:*:*:*:*:* Versions before 8.10 Vulnerable ·GE
- cpe:2.3:h:ge:multilin_n60:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·GE
- cpe:2.3:o:ge:multilin_t35_firmware:*:*:*:*:*:*:*:* Versions before 8.10 Vulnerable ·GE
- cpe:2.3:h:ge:multilin_t35:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·GE
- cpe:2.3:o:ge:multilin_t60_firmware:*:*:*:*:*:*:*:* Versions before 8.10 Vulnerable ·GE
- cpe:2.3:h:ge:multilin_t60:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·GE
- cpe:2.3:o:ge:multilin_c30_firmware:*:*:*:*:*:*:*:* Versions before 8.10 Vulnerable ·GE
- cpe:2.3:h:ge:multilin_c30:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·GE
Remediation
- Fix · CNA UR family (GE) Fixed in 8.1x
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
GE UR family 8.1x
6 records Highest priority Priority MEDIUM 3 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2021-08917 GE UR family Unrestricted Upload of File with Dangerous TypePriority MEDIUM 51
- TI-2021-08915 GE UR family insecure default variable initializationPriority MEDIUM 51
- TI-2021-08912 GE UR family exposure of sensitive information to an unauthorized actorPriority MEDIUM 40
Timeline
- 2026-10-02 Threatist record created from CVE-2021-27420
- 2026-10-03 Alias added: GHSA-vw3w-wmxj-qpxw
References
More GE Multilin B30 Firmware vulnerabilities
- TI-2021-08917 GE UR family Unrestricted Upload of File with Dangerous Type CVSS 3.1CRITICAL 9.8
- TI-2021-08915 GE UR family insecure default variable initialization CVSS 3.1CRITICAL 9.8
- TI-2021-08912 GE UR family exposure of sensitive information to an unauthorized actor CVSS 3.1HIGH 7.5
- TI-2021-08908 GE UR family input validation CVSS 3.1MEDIUM 6.1
- TI-2021-08913 GE UR family exposure of sensitive information to an unauthorized actor CVSS 3.1MEDIUM 5.3
Sources
- CVE-2021-27420 · CVE Program
- CVE-2021-27420 · NVD
- FIRST EPSS
- GHSA-vw3w-wmxj-qpxw · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences