Details of VAR-202505-2435

ID

VAR-202505-2435

CVE

CVE-2025-4600

TITLE

Google Cloud Classic Application Load Balancer Input Validation Error Vulnerability

Trust: 0.6

sources: CNVD: CNVD-2025-11250

DESCRIPTION

A request smuggling vulnerability existed in the Google Cloud Classic Application Load Balancer due to improper handling of chunked-encoded HTTP requests. This allowed attackers to craft requests that could be misinterpreted by backend servers. The issue was fixed by disallowing stray data after a chunk, and is no longer exploitable. No action is required as Classic Application Load Balancer service after 2025-04-26 is not vulnerable. No detailed vulnerability details are currently provided

Trust: 1.44

sources: NVD: CVE-2025-4600 // CNVD: CNVD-2025-11250

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2025-11250

AFFECTED PRODUCTS

vendor:

google

model:

cloud classic application load balancer

scope:

version:

Trust: 0.6

sources: CNVD: CNVD-2025-11250

CVSS

SEVERITY

CVSSV2

CVSSV3

cve-coordination@google.com:	CVE-2025-4600
value:	HIGH
Trust: 1.0
CNVD:	CNVD-2025-11250
value:	HIGH
Trust: 0.6

CNVD:	CNVD-2025-11250
severity:	HIGH
baseScore:	7.5
vectorString:	AV:N/AC:L/AU:N/C:P/I:P/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

sources: CNVD: CNVD-2025-11250 // NVD: CVE-2025-4600

PROBLEMTYPE DATA

problemtype:

CWE-20

Trust: 1.0

sources: NVD: CVE-2025-4600

PATCH

title:

Patch for Google Cloud Classic Application Load Balancer Input Validation Error Vulnerability

url:

https://www.cnvd.org.cn/patchInfo/show/693871

Trust: 0.6

sources: CNVD: CNVD-2025-11250

EXTERNAL IDS

db:	NVD	id:	CVE-2025-4600	Trust: 1.6
db:	CNVD	id:	CNVD-2025-11250	Trust: 0.6

sources: CNVD: CNVD-2025-11250 // NVD: CVE-2025-4600

REFERENCES

url:	https://cloud.google.com/support/bulletins#gcp-2025-027	Trust: 1.0
url:	https://cloud.google.com/support/bulletins#gcp	Trust: 0.6

sources: CNVD: CNVD-2025-11250 // NVD: CVE-2025-4600

SOURCES

db:	CNVD	id:	CNVD-2025-11250
db:	NVD	id:	CVE-2025-4600

LAST UPDATE DATE

2025-06-04T22:42:18.511000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2025-11250	date:	2025-06-03T00:00:00
db:	NVD	id:	CVE-2025-4600	date:	2025-05-16T14:42:18.700

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2025-11250	date:	2025-06-03T00:00:00
db:	NVD	id:	CVE-2025-4600	date:	2025-05-16T14:15:32.580