How severe is CVE-2025-9573?

CVE-2025-9573 has a CVSS 4.0 base score of 8.6, rated high severity.

Is CVE-2025-9573 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-9573?

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

Does CVE-2025-9573 have an EU (EUVD) identifier?

Yes. CVE-2025-9573 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26375.

When was CVE-2025-9573 published?

CVE-2025-9573 was published on 2025-09-02 and last updated on 2026-06-17.

CVE-2025-9573

CVE-2025-9573 is a high-severity vulnerability with a CVSS 4.0 base score of 8.6. 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-78.

Key facts

Severity: High (CVSS 4.0 base score 8.6)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-26375
Weakness: CWE-78
Published: 2025-09-02
Last modified: 2026-06-17

Description

The ns_backup extension through 13.0.2 for TYPO3 allows command injection.

Frequently asked questions

What is CVE-2025-9573?: The ns_backup extension through 13.0.2 for TYPO3 allows command injection.
How severe is CVE-2025-9573?: CVE-2025-9573 has a CVSS 4.0 base score of 8.6, rated high severity.
Is CVE-2025-9573 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-9573?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-9573 have an EU (EUVD) identifier?: Yes. CVE-2025-9573 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26375.
When was CVE-2025-9573 published?: CVE-2025-9573 was published on 2025-09-02 and last updated on 2026-06-17.

References

https://typo3.org/security/advisory/typo3-ext-sa-2025-011

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