Cyber Posture

CVE-2026-2157

HighPublic PoCRCE

Published: 08 February 2026

Published
08 February 2026
Modified
11 February 2026
KEV Added
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Patch
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CVSS Score 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0065 71.0th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-2157 is a high-severity Command Injection (CWE-77) vulnerability in Dlink Dir-823X Firmware. Its CVSS base score is 7.2 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 29.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190) and 1 other technique.
Threat & Defense Details

Likely Mitigating ControlsAI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-27 Platform-independent Applications
addresses: CWE-78

Platform-independent apps typically execute inside a managed runtime or sandbox that restricts direct OS command execution, reducing the ability to exploit OS command injection.

SI-10 Information Input Validation
addresses: CWE-78

Validates inputs to block special elements that would alter OS command execution.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
attack.mitre.org →
Why these techniques?

OS command injection in public web form (/goform) of network device directly enables remote exploitation of public-facing application and Unix shell command execution.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD Description

A security vulnerability has been detected in D-Link DIR-823X 250416. This affects the function sub_4175CC of the file /goform/set_static_route_table. Such manipulation of the argument interface/destip/netmask/gateway/metric leads to os command injection. The attack may be performed from remote. The exploit has…

more

been disclosed publicly and may be used.

Deeper analysisAI

CVE-2026-2157 is an OS command injection vulnerability (CWE-77, CWE-78) in the D-Link DIR-823X router running firmware version 250416. The flaw affects the function sub_4175CC in the file /goform/set_static_route_table, where manipulation of arguments including interface, destip, netmask, gateway, and metric enables arbitrary command execution.

The vulnerability is remotely exploitable over the network with low complexity and no user interaction required, but demands high privileges (PR:H) from the attacker. It carries a CVSS v3.1 base score of 7.2 (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H), allowing successful exploitation to result in high impacts to confidentiality, integrity, and availability through injected OS commands.

Advisories and additional details are documented at https://github.com/master-abc/cve/issues/28, https://vuldb.com/?ctiid.344859, https://vuldb.com/?id.344859, https://vuldb.com/?submit.748376, and https://www.dlink.com/. The exploit has been publicly disclosed and may be used.

The vulnerability was published on 2026-02-08, with the proof-of-concept exploit already available in public repositories.

Details

CWE(s)
CWE-77CWE-78

Affected Products

dlink
dir-823x firmware
250416

CVEs Like This One

CVE-2026-2175Same product: Dlink Dir-823X
CVE-2026-2210Same product: Dlink Dir-823X
CVE-2026-2081Same product: Dlink Dir-823X
CVE-2026-2143Same product: Dlink Dir-823X
CVE-2026-2084Same product: Dlink Dir-823X
CVE-2026-2063Same product: Dlink Dir-823X
CVE-2026-2142Same product: Dlink Dir-823X
CVE-2026-2129Same product: Dlink Dir-823X
CVE-2026-2155Same product: Dlink Dir-823X
CVE-2026-2120Same product: Dlink Dir-823X

References