CVE-2022-43619

Root code execution via ConfigFileUpload format string

Published Mar 29, 2023 · Updated Feb 14, 2025

Format string injection in D-Link DIR-1935 firmware 1.03 allows remote authenticated users to execute code through ConfigFileUpload. The web portal uses an unvalidated user-controlled string as a format specifier while processing ConfigFileUpload requests. An attacker must reach the adjacent-network management interface and authenticate or bypass its authentication; successful exploitation runs code as root.

CVSS severity6.8
Medium
EPSS probability0.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Format string injection in D-Link DIR-1935 firmware 1.03 allows remote authenticated users to execute code through ConfigFileUpload. The web portal uses an unvalidated user-controlled string as a format specifier while processing ConfigFileUpload requests. An attacker must reach the adjacent-network management interface and authenticate or bypass its authentication; successful exploitation runs code as root.

The record

CVE
CVE-2022-43619
Published
Mar 29, 2023
Updated
Feb 14, 2025
Vendor
D-Link Corporation
Product
DIR-1935
Classifications
CWE-134, T1210
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 14, 2025Record 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=1.03

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

D-Link Corporation · DIR-1935version=1.03

Published CVSS scores

6.8Zero Day InitiativeCVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.8NIST NVDCVSS:3.1/AV:A/AC:L/PR:H/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-134Use of Externally-Controlled Format String
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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