Summary
SICK identified multiple products affected by the Brotli vulnerability, also known as Broccoli2Shell (CVE-2026-111497). Successful exploitation of this vulnerability could impact the confidentiality, integrity, and availability of affected systems. At the time of publication, SICK is not aware of any active exploitation of this vulnerability targeting SICK products. SICK strongly recommends that customers review and implement the remediation measures provided in this advisory to reduce potential security risks.
Details
Impact
If exploited, the vulnerability could potentially allow an unauthenticated attacker to compromise the availability, integrity, and confidentiality of the product.
Mitigation
As general security measures, SICK recommends minimizing network exposure of the devices, restricting network access, and following recommended security practices in order to operate the devices in a protected IT environment.
Remediation
SICK recommends updating the product to the fixed version and ensuring that the product operates within a secure environment.
Vulnerabilities 1
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Critical 9.2
Out-of-Bounds Write in Google Brotli Decoder
A buffer overflow vulnerability in the Brotli decoder (c/dec/decode.c) in Google Brotli versions 1.0.3 through 1.2.0 on all platforms allows a remote unauthenticated attacker to corrupt adjacent decoder state memory, disclose sensitive memory contents, cause …
KEV Oct 27, 2026
Revision history
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#1
Initial version
References
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SICK PSIRT Security Advisories
https://www.sick.com/psirt
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SICK Operating Guidelines
https://www.sick.com/media/docs/9/19/719/special_information_sick_operating_guidelines_cybersecurity_by_sick_en_im0106719.pdf
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ICS-CERT recommended practices on Industrial Security
https://www.cisa.gov/resources-tools/resources/ics-recommended-practices
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CVSS v3.1 Calculator
https://www.first.org/cvss/calculator/3.1