CVE-2020-9071

There is a few bytes out-of-bounds read vulnerability in some Huawei products. The software reads data past the end of the intended buffer when parsing certain message, an authenticated attacker could exploit this vulnerability by sending crafted messages to the device. Successful exploit may cause service abnormal in specific scenario.Affected product versions include:AR120-S versions V200R007C00SPC900,V200R007C00SPCa00

Published: 2020-06-01 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-9071 is rated Moderate Risk (42.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.63%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2020-9071

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.17% 0.63% +0.47%
2 2025-03-17 0.08% 0.17% +0.09%
3 2023-03-07 — 0.08% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-9071

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.0 2.9 [email protected]

Weakness enumeration for CVE-2020-9071

Affected software / configurations for CVE-2020-9071

Vendor Product Version Raw CPE
huawei ar120-s_firmware v200r007c00spc900 cpe:2.3:o:huawei:ar120-s_firmware:v200r007c00spc900:*:*:*:*:*:*:*
huawei ar120-s_firmware v200r007c00spca00 cpe:2.3:o:huawei:ar120-s_firmware:v200r007c00spca00:*:*:*:*:*:*:*
huawei ar120-s_firmware v200r007c00spcb00 cpe:2.3:o:huawei:ar120-s_firmware:v200r007c00spcb00:*:*:*:*:*:*:*
huawei ar120-s_firmware v200r007c00spcc00 cpe:2.3:o:huawei:ar120-s_firmware:v200r007c00spcc00:*:*:*:*:*:*:*
huawei ar1200_firmware v200r007c00spc900 cpe:2.3:o:huawei:ar1200_firmware:v200r007c00spc900:*:*:*:*:*:*:*
huawei ar1200_firmware v200r007c00spc900pwe cpe:2.3:o:huawei:ar1200_firmware:v200r007c00spc900pwe:*:*:*:*:*:*:*
huawei ar1200_firmware v200r007c00spca00 cpe:2.3:o:huawei:ar1200_firmware:v200r007c00spca00:*:*:*:*:*:*:*
huawei ar1200_firmware v200r007c00spcb00 cpe:2.3:o:huawei:ar1200_firmware:v200r007c00spcb00:*:*:*:*:*:*:*
huawei ar1200_firmware v200r007c00spcb00pwe cpe:2.3:o:huawei:ar1200_firmware:v200r007c00spcb00pwe:*:*:*:*:*:*:*
huawei ar1200_firmware v200r007c00spcc00 cpe:2.3:o:huawei:ar1200_firmware:v200r007c00spcc00:*:*:*:*:*:*:*
huawei ar1200-s_firmware v200r007c00spc900 cpe:2.3:o:huawei:ar1200-s_firmware:v200r007c00spc900:*:*:*:*:*:*:*
huawei ar1200-s_firmware v200r007c00spcb00 cpe:2.3:o:huawei:ar1200-s_firmware:v200r007c00spcb00:*:*:*:*:*:*:*
huawei ar1200-s_firmware v200r007c00spcc00 cpe:2.3:o:huawei:ar1200-s_firmware:v200r007c00spcc00:*:*:*:*:*:*:*
huawei ar150_firmware v200r007c00spc900 cpe:2.3:o:huawei:ar150_firmware:v200r007c00spc900:*:*:*:*:*:*:*
huawei ar150_firmware v200r007c00spc900pwe cpe:2.3:o:huawei:ar150_firmware:v200r007c00spc900pwe:*:*:*:*:*:*:*
huawei ar150_firmware v200r007c00spcb00 cpe:2.3:o:huawei:ar150_firmware:v200r007c00spcb00:*:*:*:*:*:*:*
huawei ar150_firmware v200r007c00spcb00pwe cpe:2.3:o:huawei:ar150_firmware:v200r007c00spcb00pwe:*:*:*:*:*:*:*
huawei ar150_firmware v200r007c00spcc00 cpe:2.3:o:huawei:ar150_firmware:v200r007c00spcc00:*:*:*:*:*:*:*
huawei ar150-s_firmware v200r007c00spc900 cpe:2.3:o:huawei:ar150-s_firmware:v200r007c00spc900:*:*:*:*:*:*:*
huawei ar150-s_firmware v200r007c00spcb00 cpe:2.3:o:huawei:ar150-s_firmware:v200r007c00spcb00:*:*:*:*:*:*:*
huawei ar150-s_firmware v200r007c00spcc00 cpe:2.3:o:huawei:ar150-s_firmware:v200r007c00spcc00:*:*:*:*:*:*:*
huawei ar160_firmware v200r007c00spc900 cpe:2.3:o:huawei:ar160_firmware:v200r007c00spc900:*:*:*:*:*:*:*
huawei ar160_firmware v200r007c00spc900pwe cpe:2.3:o:huawei:ar160_firmware:v200r007c00spc900pwe:*:*:*:*:*:*:*
huawei ar160_firmware v200r007c00spcb00 cpe:2.3:o:huawei:ar160_firmware:v200r007c00spcb00:*:*:*:*:*:*:*
huawei ar160_firmware v200r007c00spcb00pwe cpe:2.3:o:huawei:ar160_firmware:v200r007c00spcb00pwe:*:*:*:*:*:*:*
huawei ar160_firmware v200r007c00spcc00 cpe:2.3:o:huawei:ar160_firmware:v200r007c00spcc00:*:*:*:*:*:*:*
huawei ar200_firmware v200r007c00spc900 cpe:2.3:o:huawei:ar200_firmware:v200r007c00spc900:*:*:*:*:*:*:*
huawei ar200_firmware v200r007c00spc900pwe cpe:2.3:o:huawei:ar200_firmware:v200r007c00spc900pwe:*:*:*:*:*:*:*
huawei ar200_firmware v200r007c00spcb00 cpe:2.3:o:huawei:ar200_firmware:v200r007c00spcb00:*:*:*:*:*:*:*
huawei ar200_firmware v200r007c00spcb00pwe cpe:2.3:o:huawei:ar200_firmware:v200r007c00spcb00pwe:*:*:*:*:*:*:*
huawei ar200_firmware v200r007c00spcc00 cpe:2.3:o:huawei:ar200_firmware:v200r007c00spcc00:*:*:*:*:*:*:*
huawei ar200-s_firmware v200r007c00spc900 cpe:2.3:o:huawei:ar200-s_firmware:v200r007c00spc900:*:*:*:*:*:*:*
huawei ar200-s_firmware v200r007c00spcb00 cpe:2.3:o:huawei:ar200-s_firmware:v200r007c00spcb00:*:*:*:*:*:*:*
huawei ar200-s_firmware v200r007c00spcc00 cpe:2.3:o:huawei:ar200-s_firmware:v200r007c00spcc00:*:*:*:*:*:*:*
huawei ar2200_firmware v200r007c00spc900 cpe:2.3:o:huawei:ar2200_firmware:v200r007c00spc900:*:*:*:*:*:*:*
huawei ar2200_firmware v200r007c00spc900pwe cpe:2.3:o:huawei:ar2200_firmware:v200r007c00spc900pwe:*:*:*:*:*:*:*
huawei ar2200_firmware v200r007c00spca00 cpe:2.3:o:huawei:ar2200_firmware:v200r007c00spca00:*:*:*:*:*:*:*
huawei ar2200_firmware v200r007c00spcb00 cpe:2.3:o:huawei:ar2200_firmware:v200r007c00spcb00:*:*:*:*:*:*:*
huawei ar2200_firmware v200r007c00spcb00pwe cpe:2.3:o:huawei:ar2200_firmware:v200r007c00spcb00pwe:*:*:*:*:*:*:*
huawei ar2200_firmware v200r007c00spcc00 cpe:2.3:o:huawei:ar2200_firmware:v200r007c00spcc00:*:*:*:*:*:*:*
huawei ar2200-s_firmware v200r007c00spc900 cpe:2.3:o:huawei:ar2200-s_firmware:v200r007c00spc900:*:*:*:*:*:*:*
huawei ar2200-s_firmware v200r007c00spcb00 cpe:2.3:o:huawei:ar2200-s_firmware:v200r007c00spcb00:*:*:*:*:*:*:*
huawei ar2200-s_firmware v200r007c00spcc00 cpe:2.3:o:huawei:ar2200-s_firmware:v200r007c00spcc00:*:*:*:*:*:*:*
huawei ar3200_firmware v200r007c00 cpe:2.3:o:huawei:ar3200_firmware:v200r007c00:*:*:*:*:*:*:*
huawei ar3200_firmware v200r007c00spc900 cpe:2.3:o:huawei:ar3200_firmware:v200r007c00spc900:*:*:*:*:*:*:*
huawei ar3200_firmware v200r007c00spc900pwe cpe:2.3:o:huawei:ar3200_firmware:v200r007c00spc900pwe:*:*:*:*:*:*:*
huawei ar3200_firmware v200r007c00spca00 cpe:2.3:o:huawei:ar3200_firmware:v200r007c00spca00:*:*:*:*:*:*:*
huawei ar3200_firmware v200r007c00spcb00 cpe:2.3:o:huawei:ar3200_firmware:v200r007c00spcb00:*:*:*:*:*:*:*
huawei ar3200_firmware v200r007c00spcb00pwe cpe:2.3:o:huawei:ar3200_firmware:v200r007c00spcb00pwe:*:*:*:*:*:*:*
huawei ar3200_firmware v200r007c00spcc00 cpe:2.3:o:huawei:ar3200_firmware:v200r007c00spcc00:*:*:*:*:*:*:*
huawei ar3600_firmware v200r007c00spc900 cpe:2.3:o:huawei:ar3600_firmware:v200r007c00spc900:*:*:*:*:*:*:*
huawei ar3600_firmware v200r007c00spc900pwe cpe:2.3:o:huawei:ar3600_firmware:v200r007c00spc900pwe:*:*:*:*:*:*:*
huawei ar3600_firmware v200r007c00spcb00 cpe:2.3:o:huawei:ar3600_firmware:v200r007c00spcb00:*:*:*:*:*:*:*
huawei ar3600_firmware v200r007c00spcb00pwe cpe:2.3:o:huawei:ar3600_firmware:v200r007c00spcb00pwe:*:*:*:*:*:*:*
huawei ar3600_firmware v200r007c00spcc00 cpe:2.3:o:huawei:ar3600_firmware:v200r007c00spcc00:*:*:*:*:*:*:*
huawei ar510_firmware v200r007c00spc900 cpe:2.3:o:huawei:ar510_firmware:v200r007c00spc900:*:*:*:*:*:*:*
huawei netengine16ex_firmware v200r007c00spc900 cpe:2.3:o:huawei:netengine16ex_firmware:v200r007c00spc900:*:*:*:*:*:*:*
huawei netengine16ex_firmware v200r007c00spcb00 cpe:2.3:o:huawei:netengine16ex_firmware:v200r007c00spcb00:*:*:*:*:*:*:*
huawei netengine16ex_firmware v200r007c00spcc00 cpe:2.3:o:huawei:netengine16ex_firmware:v200r007c00spcc00:*:*:*:*:*:*:*
huawei srg1300_firmware v200r007c00spc900 cpe:2.3:o:huawei:srg1300_firmware:v200r007c00spc900:*:*:*:*:*:*:*
huawei srg1300_firmware v200r007c00spcb00 cpe:2.3:o:huawei:srg1300_firmware:v200r007c00spcb00:*:*:*:*:*:*:*
huawei srg1300_firmware v200r007c00spcc00 cpe:2.3:o:huawei:srg1300_firmware:v200r007c00spcc00:*:*:*:*:*:*:*
huawei srg2300_firmware v200r007c00spc900 cpe:2.3:o:huawei:srg2300_firmware:v200r007c00spc900:*:*:*:*:*:*:*
huawei srg2300_firmware v200r007c00spcb00 cpe:2.3:o:huawei:srg2300_firmware:v200r007c00spcb00:*:*:*:*:*:*:*
huawei srg2300_firmware v200r007c00spcc00 cpe:2.3:o:huawei:srg2300_firmware:v200r007c00spcc00:*:*:*:*:*:*:*
huawei srg3300_firmware v200r007c00spc900 cpe:2.3:o:huawei:srg3300_firmware:v200r007c00spc900:*:*:*:*:*:*:*
huawei srg3300_firmware v200r007c00spcb00 cpe:2.3:o:huawei:srg3300_firmware:v200r007c00spcb00:*:*:*:*:*:*:*
huawei srg3300_firmware v200r007c00spcc00 cpe:2.3:o:huawei:srg3300_firmware:v200r007c00spcc00:*:*:*:*:*:*:*

References for CVE-2020-9071

cvelogic Threat Intelligence