CVE-2026-2193Public exploitNetwork attack vector

Authenticated command execution via unescaped NVRAM username

Published Feb 8, 2026 · Updated Feb 8, 2026

Command injection in D-Link DI-7100G C1 24.04.18D1 allows remote authenticated users to execute commands via usb_username. The set_jhttpd_info function reads usb_username from NVRAM, inserts it unescaped into an echo command, and passes the resulting string to system(). Low-privilege access that can modify the configuration is required; injected commands run when the function executes or the device starts.

CVSS severity8.8
High
EPSS probability3.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in D-Link DI-7100G C1 24.04.18D1 allows remote authenticated users to execute commands via usb_username. The set_jhttpd_info function reads usb_username from NVRAM, inserts it unescaped into an echo command, and passes the resulting string to system(). Low-privilege access that can modify the configuration is required; injected commands run when the function executes or the device starts.

The record

CVE
CVE-2026-2193
Published
Feb 8, 2026
Updated
Feb 8, 2026
Vendor
D-Link
Product
DI-7100G
Classifications
CWE-77, CWE-74, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 8, 2026Record 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=24.04.18D1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

D-Link · DI-7100Gversion=24.04.18D1

Published CVSS scores

6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1059.004Unix and Linux 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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