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CVE-2020-9117

HIGH
7.8
CVSS Score
Published: December 1, 2020 at 12:02 AM UTC
Updated: June 17, 2026 at 03:27 AM UTC
4 products affected across 1 vendorSydneym AL00 FirmwareNova 4 FirmwareSydneyM-AL00

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%

Description

HUAWEI nova 4 versions earlier than 10.0.0.165(C01E34R2P4) and SydneyM-AL00 versions earlier than 10.0.0.165(C00E66R1P5) have an out-of-bounds read and write vulnerability. An attacker with specific permissions crafts malformed packet with specific parameter and sends the packet to the affected products. Due to insufficient validation of packet, which may be exploited to cause the information leakage or arbitrary code execution.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Nova 4 Firmware· Huawei
95%
v < 10.0.0.165(c01e34r2p4)
Affected range stops below 10.0.0.165(c01e34r2p4), so it looks safe — our inference, not a vendor statement
huawei-nova-4 (same device)
Sydneym AL00 Firmware· Huawei
95%
v < 10.0.0.165(c00e66r1p5)
Affected range stops below 10.0.0.165(c00e66r1p5), so it looks safe — our inference, not a vendor statement
huawei-sydneym-al00 (same device)
Nova 4· Huawei
60%
v < 10.0.0.165
Affected range stops below 10.0.0.165, so it looks safe — our inference, not a vendor statement
SydneyM-AL00· Huawei
60%
v < 10.0.0.165
Affected range stops below 10.0.0.165, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20201125-01-outofboundread-en

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125CWE-787

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