CVE-2026-0774

Unauthenticated code execution via arpstrs argument injection

Published Jan 23, 2026 · Updated Jan 23, 2026

Argument injection in aceberg WatchYourLAN 2.1.2 allows remote attackers to execute arbitrary code through the configuration page. The configuration handler passes the user-supplied arpstrs value to a system call without validating argument delimiters. Access to the network-exposed web GUI is sufficient because built-in authentication is absent, and injected arguments execute with service-account privileges.

CVSS severity8.8
High
EPSS probability0.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Argument injection in aceberg WatchYourLAN 2.1.2 allows remote attackers to execute arbitrary code through the configuration page. The configuration handler passes the user-supplied arpstrs value to a system call without validating argument delimiters. Access to the network-exposed web GUI is sufficient because built-in authentication is absent, and injected arguments execute with service-account privileges.

The record

CVE
CVE-2026-0774
Published
Jan 23, 2026
Updated
Jan 23, 2026
Vendor
aceberg
Product
WatchYourLAN
Classifications
CWE-88, T1059
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 23, 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=2.1.2

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

aceberg · WatchYourLANversion=2.1.2

Published CVSS scores

8.8Zero Day InitiativeCVSS:3.0/AV:A/AC:L/PR:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-88Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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