Out-of-bounds write in HUAWEI 4G Router B612
Priority LOW 19CWE-124Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
There is a buffer error vulnerability in some Huawei product. An unauthenticated attacker may send special UPNP message to the affected products. Due to insufficient input validation of some value, successful exploit may cause some service abnormal. (Vulnerability ID: HWPSIRT-2017-08234) This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2020-9086.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00215 11th 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 |
|---|---|---|---|---|---|
| Huawei | HUAWEI 4G Router B612 | B612s-25dTCPU-V100R001B192D03SP00C234; B612s-25dTCPU-V100R001B192D03SP00C287; B612s-25dTCPU-V100R001B192D05SP00C00 | — | No fix listed | CNA |
- HUAWEI 4G Router B612 VendorHuawei Affected B612s-25dTCPU-V100R001B192D03SP00C234; B612s-25dTCPU-V100R001B192D03SP00C287; B612s-25dTCPU-V100R001B192D05SP00C00 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:huawei:b612_firmware:b612s-25dtcpu-v100r001b192d03sp00c234:*:*:*:*:*:*:* | b612s-25dtcpu-v100r001b192d03sp00c234 | Vulnerable | Huawei |
| cpe:2.3:o:huawei:b612_firmware:b612s-25dtcpu-v100r001b192d03sp00c287:*:*:*:*:*:*:* | b612s-25dtcpu-v100r001b192d03sp00c287 | Vulnerable | Huawei |
| cpe:2.3:o:huawei:b612_firmware:b612s-25dtcpu-v100r001b192d05sp00c00:*:*:*:*:*:*:* | b612s-25dtcpu-v100r001b192d05sp00c00 | Vulnerable | Huawei |
| cpe:2.3:h:huawei:b612:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Huawei |
- cpe:2.3:o:huawei:b612_firmware:b612s-25dtcpu-v100r001b192d03sp00c234:*:*:*:*:*:*:* Versions b612s-25dtcpu-v100r001b192d03sp00c234 Vulnerable ·Huawei
- cpe:2.3:o:huawei:b612_firmware:b612s-25dtcpu-v100r001b192d03sp00c287:*:*:*:*:*:*:* Versions b612s-25dtcpu-v100r001b192d03sp00c287 Vulnerable ·Huawei
- cpe:2.3:o:huawei:b612_firmware:b612s-25dtcpu-v100r001b192d05sp00c00:*:*:*:*:*:*:* Versions b612s-25dtcpu-v100r001b192d05sp00c00 Vulnerable ·Huawei
- cpe:2.3:h:huawei:b612:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Huawei
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-9086
- 2026-10-03 Alias added: GHSA-ffw9-qr6v-4c9c
References
More Huawei B612 Firmware vulnerabilities
- TI-2020-07298 NULL pointer dereference in HUAWEI 4G Router B612 CVSS 3.1MEDIUM 5.3
Sources
- CVE-2020-9086 · CVE Program
- CVE-2020-9086 · NVD
- FIRST EPSS
- GHSA-ffw9-qr6v-4c9c · 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