CVE-2020-1802

Crafted file loading via insufficient USB integrity checks

Published Apr 10, 2020 · Updated Aug 4, 2024

Insufficient integrity validation in Huawei OSCA-550 products 1.0.1.23(SP2) allows physically proximate attackers to load a crafted file via USB. During certain loading processes, the device accepts a USB-supplied file without adequately validating its integrity; Huawei has not identified the file type or validation routine. Physical USB access and a crafted file are required, and the disclosed outcome is limited to loading that file onto the device.

CVSS severity5.7
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient integrity validation in Huawei OSCA-550 products 1.0.1.23(SP2) allows physically proximate attackers to load a crafted file via USB. During certain loading processes, the device accepts a USB-supplied file without adequately validating its integrity; Huawei has not identified the file type or validation routine. Physical USB access and a crafted file are required, and the disclosed outcome is limited to loading that file onto the device.

The record

CVE
CVE-2020-1802
Published
Apr 10, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-354
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 10, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

2.1NIST NVDAV:L/AC:L/Au:N/C:N/I:P/A:N
4.6NIST NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
5.7Huawei PSIRTCVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
5.3Huawei PSIRTCVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H/E:F/RL:O/RC:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-354Improper Validation of Integrity Check Value

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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