CVE-2020-1843

Physical-access illegal operations via insufficient verification

Published Feb 18, 2020 · Updated Aug 4, 2024

Insufficient verification in Huawei smart-screen firmware allows physically proximate attackers to perform illegal operations. Huawei has not disclosed the verification locus, the operations accepted without sufficient validation, or the resulting device-state changes. Physical access to an affected television is required, and the documented consequence is limited to an unspecified illegal operation.

CVSS severity6.8
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient verification in Huawei smart-screen firmware allows physically proximate attackers to perform illegal operations. Huawei has not disclosed the verification locus, the operations accepted without sufficient validation, or the resulting device-state changes. Physical access to an affected television is required, and the documented consequence is limited to an unspecified illegal operation.

The record

CVE
CVE-2020-1843
Published
Feb 18, 2020
Updated
Aug 4, 2024
Vendor
Huawei
Product
Huawei OSCA-550X Smart Screen
Classifications
Unavailable
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 18, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.0.71(SP2)

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Huawei · Huawei OSCA-550X Smart Screenversion=1.0.0.71(SP2)
Huawei · Huawei Smart Screen V65version=1.0.1.20(SP2)
Huawei · Huawei OSCA-550A Smart Screenversion=1.0.0.71(SP1)
Huawei · Huawei OSCA-550 Smart Screenversion=1.0.0.71(SP1)
Huawei · Huawei OSCA-550AX Smart Screenversion=1.0.0.71(SP2)

Published CVSS scores

6.3HuaweiCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
6.8NIST NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8HuaweiCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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