What’s Vulnerable › Vulnerabilities

CVE-2026-55721: SQL Injection in StoneFly Storage Concentrator

• Severity: critical (CVSS 9.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-30 · updated 2026-07-01
• Weakness: CWE-89

Description

Storage Concentrator (SC & SCVM) is vulnerable to SQL injection through cookie values processed by the login.pl and debug.pl scripts. The cookie value is incorporated directly into database queries without adequate sanitization, allowing an unauthenticated remote attacker to manipulate those queries and extract sensitive information from the underlying database, including session tokens, password hashes, and stored secret keys.

Affected products

• StoneFly Storage Concentrator: before 8.0.4.22 — fixed in 8.0.4.22
• StoneFly Storage Concentrator Virtual Machine: before 8.0.4.22 — fixed in 8.0.4.22

How to fix

Upgrade to a fixed version: StoneFly Storage Concentrator 8.0.4.22; StoneFly Storage Concentrator Virtual Machine 8.0.4.22. Check the vendor advisory for mitigations.

References

• https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-181-06.json
• https://stonefly.com/contact-us/
• https://www.cisa.gov/news-events/ics-advisories/icsa-26-181-06

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