CVE-2020-1841Network attack vector

Information disclosure via repeated unauthenticated guessing

Published Feb 17, 2020 · Updated Aug 4, 2024

Information disclosure in Huawei CloudLink Board, DP300, RSE6500, and TE60 firmware allows remote attackers to guess information. Huawei states that repeated unauthenticated attempts reveal information but does not identify the affected interface, guessed value, or response oracle. The attacker must reach the device's network, and successful exploitation exposes information without reported integrity or availability impact.

CVSS severity5.9
Medium
EPSS probability0.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Information disclosure in Huawei CloudLink Board, DP300, RSE6500, and TE60 firmware allows remote attackers to guess information. Huawei states that repeated unauthenticated attempts reveal information but does not identify the affected interface, guessed value, or response oracle. The attacker must reach the device's network, and successful exploitation exposes information without reported integrity or availability impact.

The record

CVE
CVE-2020-1841
Published
Feb 17, 2020
Updated
Aug 4, 2024
Vendor
Huawei Technologies Co., Ltd.
Product
CloudLink Board
Classifications
CWE-200
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 17, 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=20.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Huawei Technologies Co., Ltd. · CloudLink Boardversion=20.0.0
Huawei Technologies Co., Ltd. · TE60version=V500R002C00; version=V600R006C00; version=V600R006C00SPC200; version=V600R006C00SPC300; version=V600R006C10; version=V600R019C00; version=V600R019C00SPC100
Huawei Technologies Co., Ltd. · RSE6500version=V100R001C00; version=V500R002C00; version=V500R002C00SPC900
Huawei Technologies Co., Ltd. · DP300version=V500R002C00

Published CVSS scores

5.5HuaweiCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C
5.9HuaweiCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo