How severe is CVE-2025-11915?

CVE-2025-11915 has a CVSS 4.0 base score of 6.9, rated medium severity.

Is CVE-2025-11915 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-11915?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-11915 have an EU (EUVD) identifier?

Yes. CVE-2025-11915 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-35358.

When was CVE-2025-11915 published?

CVE-2025-11915 was published on 2025-10-22 and last updated on 2026-06-17.

CVE-2025-11915

CVE-2025-11915 is a medium-severity vulnerability with a CVSS 4.0 base score of 6.9. 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-444.

Key facts

Severity: Medium (CVSS 4.0 base score 6.9)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-35358
Weakness: CWE-444
Published: 2025-10-22
Last modified: 2026-06-17

Description

Connection desynchronization between an HTTP proxy and the model backend. The fixes were rolled out for all proxies in front of impacted models by 2025-09-28. Users do not need to take any action.

Frequently asked questions

What is CVE-2025-11915?: Connection desynchronization between an HTTP proxy and the model backend. The fixes were rolled out for all proxies in front of impacted models by 2025-09-28. Users do not need to take any action.
How severe is CVE-2025-11915?: CVE-2025-11915 has a CVSS 4.0 base score of 6.9, rated medium severity.
Is CVE-2025-11915 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-11915?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-11915 have an EU (EUVD) identifier?: Yes. CVE-2025-11915 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-35358.
When was CVE-2025-11915 published?: CVE-2025-11915 was published on 2025-10-22 and last updated on 2026-06-17.

References

https://cloud.google.com/vertex-ai/generative-ai/docs/security-bulletins#gcp-2025-059

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