CVE-2019-20499Public exploit

Authenticated command execution via unsanitized restore parameters

Published Mar 5, 2020 · Updated Aug 5, 2024

OS command injection in D-Link DWL-2600AP Revision A firmware 4.2.0.15 and earlier allows local users to execute arbitrary commands. The admin.cgi config_restore handler passes the configRestore and configServerip POST values directly to a TFTP shell command without validating shell metacharacters. Valid web-interface credentials are required; successful injection executes commands on the access point and can read or modify device data.

CVSS severity7.8
High
EPSS probability95.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in D-Link DWL-2600AP Revision A firmware 4.2.0.15 and earlier allows local users to execute arbitrary commands. The admin.cgi config_restore handler passes the configRestore and configServerip POST values directly to a TFTP shell command without validating shell metacharacters. Valid web-interface credentials are required; successful injection executes commands on the access point and can read or modify device data.

The record

CVE
CVE-2019-20499
Published
Mar 5, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1059.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 5, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2NIST NVDAV:L/AC:L/Au:N/C:C/I:C/A:C

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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Unix Shell

Public exploit references

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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