CVE-2020-1799

Code execution via web-portal use-after-free

Published May 21, 2020 · Updated Aug 4, 2024

Use-after-free in Huawei 5G Mobile WiFi Pro E6878-370 firmware allows attackers to execute code through the device's web portal. During a crafted series of web-portal operations, the firmware references memory after freeing it under an otherwise undisclosed scenario. Adjacent-network access is required; no prior authentication or user interaction is needed, and successful exploitation executes malicious code on the device.

CVSS severity7.5
High
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Huawei 5G Mobile WiFi Pro E6878-370 firmware allows attackers to execute code through the device's web portal. During a crafted series of web-portal operations, the firmware references memory after freeing it under an otherwise undisclosed scenario. Adjacent-network access is required; no prior authentication or user interaction is needed, and successful exploitation executes malicious code on the device.

The record

CVE
CVE-2020-1799
Published
May 21, 2020
Updated
Aug 4, 2024
Vendor
Huawei
Product
HUAWEI 5G Mobile WiFi Pro
Classifications
CWE-416, T1210
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 21, 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=10.0.3.1(H557SP27C233),10.0.3.1(H563SP1C00),10.0.3.1(H563SP1C233)

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Huawei · HUAWEI 5G Mobile WiFi Proversion=10.0.3.1(H557SP27C233),10.0.3.1(H563SP1C00),10.0.3.1(H563SP1C233)

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
5.4NIST NVDAV:A/AC:M/Au:N/C:P/I:P/A:P
7.0Huawei PSIRTCVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
7.5Huawei PSIRTCVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1210Exploitation of Remote Services

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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