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.

VectorNETWORK

Published Byf45cbf4e-4146-4068-b7e1-655ffc2c548c

Published DateOct 22, 2025, 10:15

Weakness Type (CWE):CWE-444

CVSS Metrics

Base Score

6.9

Vector String

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:L/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Clear

Base Severity

MEDIUM

Version

4.0

Attack Vector (AV)

NETWORK

Attack Complexity (AC)

LOW

Privileges Required (PR)

NONE

User Interaction (UI)

NONE

Scope (S)

Confidentiality (C)

Integrity (I)

Availability (A)

References

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

Base Score

MEDIUM6.9

Weakness Type (CWE):CWE-444

CVSS Metrics

Base Score

6.9

Vector String

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:L/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Clear

Base Severity

MEDIUM

Version

4.0

Attack Vector (AV)

NETWORK

Attack Complexity (AC)

LOW

Privileges Required (PR)

NONE

User Interaction (UI)

NONE

Scope (S)

Confidentiality (C)

Integrity (I)

Availability (A)