Summary
An update is available that resolves the publicly reported vulnerabilities in the PHP and OpenSSL components in the product versions listed as affected in the advisory. An attacker who successfully exploited this vulnerability could insert and run arbitrary code. An attacker who successfully exploited the OpenSSL vulnerability (CVE-2026-35189) could cause a denial of service of the affected products.
Vulnerabilities 3
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Critical 9.2
RCE via OOM corruption
PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request. Some contexts may not properly account for this scenario and leave request memory in an uninitialized state before performing an allocation. The s…
KEV Oct 26, 2026 -
Critical 9.2
RCE via stale global state
PHP has various global state that temporarily points into request memory. In some scenarios, global state may not be correctly reset, or may be repopulated after being reset. The global state may then refer to request memory even after it has been freed. Subs…
KEV Oct 26, 2026 -
Medium 5.3
Excessive Memory Allocation in Relative CRLDP Processing
Issue summary: A certificate with many nameRelativeToCRLIssuer CRL distribution points causes disproportionate heap growth when OpenSSL caches X.509 extensions. Impact summary: Receiving a crafted certificate from a malicious peer can lead to significant memo…
Revision history
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#1
Initial version.
References
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ABB CYBERSECURITY ADVISORY - PDF Version
https://search.abb.com/library/Download.aspx?DocumentID=3KXG141033R4801&LanguageCode=en&DocumentPartId=&Action=Launch
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SMT for ACF5000 software
https://search.abb.com/library/Download.aspx?DocumentID=SW%2FACF5000_LCS-CCUS%2FAO_SMT_5_6&LanguageCode=en&DocumentPartId=&Action=Launch
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SMT user manual
https://search.abb.com/library/Download.aspx?DocumentID=UM%2FSMT&LanguageCode=en&DocumentPartId=&Action=Launch
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AO-HMI for ACF5000
https://search.abb.com/library/Download.aspx?DocumentID=SW%2FACF5000_LCS-CCUS%2FAO_HMI_P5_6&LanguageCode=en&DocumentPartId=&Action=Launch