CVE-2026-55721: 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

criticalCVSS 9.3CVE-2026-55721

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.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: critical — CVSS 9.3
Published: 2026-06-30
Last updated: 2026-07-01
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-55721

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-557210.41% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 33% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-55721	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

criticalStoneFly Storage Concentratorcisa

Recent advisories for Storage Concentrator

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

criticalCVE-2026-56415: Storage Concentrator (SC & SCVM) contains a command injection vulnerability within the debug.p…nvd · 2026-06-30
criticalCVE-2026-56413: Storage Concentrator (SC & SCVM) contains a command injection vulnerability in the ms_service.…nvd · 2026-06-30
criticalCVE-2026-50110: Storage Concentrator (SC & SCVM) contains hardcoded credentials for numerous internal services…nvd · 2026-06-30
mediumCVE-2026-50040: Storage Concentrator (SC & SCVM) is vulnerable to reflected cross-site scripting due to unsani…nvd · 2026-06-30
criticalStoneFly Storage Concentratorcisa · 2026-06-30