CVE-2023-23432

System file overwrite via improper signature verification

Published Dec 29, 2023 · Updated Nov 27, 2024

Improper signature verification in HONOR 50 firmware 7.0.0.138 through 7.0.0.156 allows local users to replace system files with forgeries. HONOR has not disclosed the affected signature-validation component or how the component accepts a forged file. Local access is required, and exploitation replaces trusted system-file content and can interrupt normal device operation.

CVSS severity7.3
High
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper signature verification in HONOR 50 firmware 7.0.0.138 through 7.0.0.156 allows local users to replace system files with forgeries. HONOR has not disclosed the affected signature-validation component or how the component accepts a forged file. Local access is required, and exploitation replaces trusted system-file content and can interrupt normal device operation.

The record

CVE
CVE-2023-23432
Published
Dec 29, 2023
Updated
Nov 27, 2024
Vendor
HONOR
Product
HONOR 50
Classifications
CWE-347, T1565.001
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 27, 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=7.0.0.138 <7.0.0.157

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

HONOR · HONOR 50version=7.0.0.138 <7.0.0.157

Published CVSS scores

7.3HONORCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-347Improper Verification of Cryptographic Signature
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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