CVE-2023-4785

Denial of Service in gRPC Core

Published Sep 13, 2023 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
Lack of error handling in the TCP server in Google's gRPC starting version 1.23 on posix-compatible platforms (ex. Linux) allows an attacker to cause a denial of service by initiating a significant number of connections with the server. Note that gRPC C++ Python, and Ruby are affected, but gRPC Java, and Go are NOT affected.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-2551 Lack of error handling in the TCP server in Google's gRPC starting version 1.23 on posix-compatible platforms (ex. Linux) allows an attacker to cause a denial of service by initiating a significant number of connections with the server. Note that gRPC C++ Python, and Ruby are affected, but gRPC Java, and Go are NOT affected. 
Github GHSA Github GHSA GHSA-p25m-jpj4-qcrr Denial of Service Vulnerability in gRPC TCP Server (Posix-compatible platforms)
History
Type Values Removed Values Added
Description Lack of error handling in the TCP server in Google's gRPC starting version 1.23 on posix-compatible platforms (ex. Linux) allows an attacker to cause a denial of service by initiating a significant number of connections with the server. Note that gRPC C++ Python, and Ruby are affected, but gRPC Java, and Go are NOT affected.  Lack of error handling in the TCP server in Google's gRPC starting version 1.23 on posix-compatible platforms (ex. Linux) allows an attacker to cause a denial of service by initiating a significant number of connections with the server. Note that gRPC C++ Python, and Ruby are affected, but gRPC Java, and Go are NOT affected.
Title Denial of Service in gRPC Core Denial of Service in gRPC Core
Type Values Removed Values Added
CPEs cpe:2.3:a:grpc:grpc:*:*:*:*:*:*:*:*
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Google
Published
Updated
Jan 12, 2026, 3:34 PM
Reserved
Sep 6, 2023, 4:50 AM
Status
Modified
Published
Sep 13, 2023, 5:15 PM
Modified
Jun 17, 2026, 6:38 AM
Severity
Moderate
Public date
Sep 14, 2023, 12:00 AM