Buffer overflow in Huawei B612

CVE-2020-9086

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.002 (9.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 9.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-9086: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

  • Huawei B612
  • Huawei B612 Firmware — versions b612s-25dtcpu-v100r001b192d03sp00c234, b612s-25dtcpu-v100r001b192d03sp00c287, b612s-25dtcpu-v100r001b192d05sp00c00
  • Huawei 4g Router B612 — versions B612s-25dTCPU-V100R001B192D03SP00C234, B612s-25dTCPU-V100R001B192D03SP00C287, B612s-25dTCPU-V100R001B192D05SP00C00

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-9086?
CVE-2020-9086 is a medium-severity vulnerability in Huawei B612, classified under Buffer Underwrite. CVSS score: 4.3/10. Published 2024-12-27.
How severe is CVE-2020-9086?
Medium severity. CVSS v3 base score is 4.3 out of 10.
Is CVE-2020-9086 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.