How severe is CVE-2026-10880?

CVE-2026-10880 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-10880 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-10880?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-10880 have an EU (EUVD) identifier?

Yes. CVE-2026-10880 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34305.

When was CVE-2026-10880 published?

CVE-2026-10880 was published on 2026-06-04 and last updated on 2026-06-17.

CVE-2026-10880

CVE-2026-10880 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-34305
Weakness: CWE-89
Published: 2026-06-04
Last modified: 2026-06-17

Description

OSNexus QuantaStor SDS Manager is vulnerable to SQL injection in the login endpoint. The username field is not properly sanitized before being incorporated into a SQL query, allowing an unauthenticated remote attacker to bypass authentication and log in as an administrator without supplying a valid password.

Frequently asked questions

What is CVE-2026-10880?: OSNexus QuantaStor SDS Manager is vulnerable to SQL injection in the login endpoint. The username field is not properly sanitized before being incorporated into a SQL query, allowing an unauthenticated remote attacker to bypass authentication and log in as an administrator without supplying a valid password.
How severe is CVE-2026-10880?: CVE-2026-10880 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-10880 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-10880?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-10880 have an EU (EUVD) identifier?: Yes. CVE-2026-10880 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34305.
When was CVE-2026-10880 published?: CVE-2026-10880 was published on 2026-06-04 and last updated on 2026-06-17.

References

https://blog.blacklanternsecurity.com/p/cve-2026-10880-osnexus-quantastor

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