Buffer overflow in Ubiquiti EdgeRouter
Priority LOW 34CWE-120Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.
Summary
A heap overflow vulnerability found in EdgeRouters and Aircubes allows a malicious actor to interrupt UPnP service to said devices.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00795 56th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- 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 |
|---|---|---|---|---|---|
| Ubiquiti | EdgeRouter | 2.0.9-hotfix.6 – 2.0.9-hotfix.6 | — | No fix listed | CNA |
| Ubiquiti | Aircube | 2.8.8 – 2.8.8 | — | No fix listed | CNA |
- EdgeRouter VendorUbiquiti Affected 2.0.9-hotfix.6 – 2.0.9-hotfix.6 Fixed in — No fix listed CNA
- Aircube VendorUbiquiti Affected 2.8.8 – 2.8.8 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:ui:edgemax_edgerouter_firmware:2.0.9:*:*:*:*:*:*:* | 2.0.9 | Vulnerable | Ubiquiti |
| cpe:2.3:h:ui:edgemax_edgerouter:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Ubiquiti |
| cpe:2.3:o:ui:aircube_firmware:*:*:*:*:*:*:*:* | before 2.8.9 | Vulnerable | Ubiquiti |
| cpe:2.3:h:ui:aircube:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Ubiquiti |
- cpe:2.3:o:ui:edgemax_edgerouter_firmware:2.0.9:*:*:*:*:*:*:* Versions 2.0.9 Vulnerable ·Ubiquiti
- cpe:2.3:h:ui:edgemax_edgerouter:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Ubiquiti
- cpe:2.3:o:ui:aircube_firmware:*:*:*:*:*:*:*:* Versions before 2.8.9 Vulnerable ·Ubiquiti
- cpe:2.3:h:ui:aircube:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Ubiquiti
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-31998
- 2026-10-03 Alias added: GHSA-jfwr-hq92-w8gg
References
Sources
- CVE-2023-31998 · CVE Program
- CVE-2023-31998 · NVD
- FIRST EPSS
- GHSA-jfwr-hq92-w8gg · 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