CVE-2020-1871Network attack vector

Information disclosure and modification via mishandled credentials

Published Jan 3, 2020 · Updated Aug 4, 2024

Improper credential management in Huawei USG9500 firmware allows remote attackers with device access to disclose or alter protected information. Huawei identifies only unspecified credentials and has not disclosed the affected component or the operation that mishandles them. The issue affects V500R001C30SPC100, V500R001C30SPC200, V500R001C30SPC600, V500R001C60SPC500, V500R005C00SPC100, and V500R005C00SPC200, with no reported availability impact.

CVSS severity6.5
Medium
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper credential management in Huawei USG9500 firmware allows remote attackers with device access to disclose or alter protected information. Huawei identifies only unspecified credentials and has not disclosed the affected component or the operation that mishandles them. The issue affects V500R001C30SPC100, V500R001C30SPC200, V500R001C30SPC600, V500R001C60SPC500, V500R005C00SPC100, and V500R005C00SPC200, with no reported availability impact.

The record

CVE
CVE-2020-1871
Published
Jan 3, 2020
Updated
Aug 4, 2024
Vendor
Huawei Technologies Co., Ltd.
Product
USG9500
Classifications
Unavailable
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 3, 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=V500R001C30SPC100
  2. Affected versionversion=V500R001C30SPC200
  3. Affected versionversion=V500R001C30SPC600
  4. Affected versionversion=V500R001C60SPC500
  5. Affected versionversion=V500R005C00SPC100
  6. Affected versionversion=V500R005C00SPC200

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Huawei Technologies Co., Ltd. · USG9500version=V500R001C30SPC100; version=V500R001C30SPC200; version=V500R001C30SPC600; version=V500R001C60SPC500; version=V500R005C00SPC100; version=V500R005C00SPC200

Published CVSS scores

6.0HuaweiCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:F/RL:O/RC:C
6.5HuaweiCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

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)
Vectornetwork
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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