CVE-2020-1855

Device-information tampering via undisclosed verification failure

Published Feb 18, 2020 · Updated Aug 4, 2024

Insufficient verification in Huawei Smart Screen V75 firmware 1.0.1.22(SP3) allows physically proximate attackers to tamper with device information. Huawei has not published the affected component, input, or verification operation, so the concrete validation failure is undisclosed. Exploitation requires physical access to the appliance and can alter device information and disrupt service, with no reported confidentiality impact.

CVSS severity6.1
Medium
EPSS probability0.21%
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 V75 firmware 1.0.1.22(SP3) allows physically proximate attackers to tamper with device information. Huawei has not published the affected component, input, or verification operation, so the concrete validation failure is undisclosed. Exploitation requires physical access to the appliance and can alter device information and disrupt service, with no reported confidentiality impact.

The record

CVE
CVE-2020-1855
Published
Feb 18, 2020
Updated
Aug 4, 2024
Vendor
Huawei
Product
Huawei Smart Screen V75
Classifications
T1565.001
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

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Is a vulnerable build present?

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

  1. Affected versionversion=1.0.1.22(SP3)

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Huawei · Huawei Smart Screen V75version=1.0.1.22(SP3)

Published CVSS scores

6.1NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
5.7HuaweiCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H/E:F/RL:O/RC:C
6.1HuaweiCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
3.6NVDAV:L/AC:L/Au:N/C:N/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

T1565.001Stored Data Manipulation

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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