Affects a widely deployed storage product; unauthenticated SQLi with data leakage could halt or compromise multiple orgs.
CVE-2026-55721
Unauthenticated SQLi via cookies in Storage Concentrator (SC/SCVM).
Is CVE-2026-55721 being exploited?
Not confirmed. CVE-2026-55721 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.55% probability of exploitation in the next 30 days.
How severe is CVE-2026-55721?
CVE-2026-55721 is rated Critical with a CVSS score of 9.2. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-55721?
Not known from our data. No patch reference has been recorded for CVE-2026-55721, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-55721 affect?
CVE-2026-55721 affects Storage Concentrator (SC) & SCVM. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-55721?
Patch when available; restrict management UI; monitor for cookie-based queries
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated remote SQL injection via cookie values allows data exfiltration of session tokens, password hashes, and secret keys.
Immediate action required
- affected< 8.0.4.22
- affected< 8.0.4.22
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.