CVE-2023-4785

Denial of Service in gRPC Core

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. 

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.02%
Affected: Google gRPC
Published at:
Updated at:

References

Link Tags
https://github.com/grpc/grpc/pull/33656 patch issue tracking
https://github.com/grpc/grpc/pull/33667 issue tracking
https://github.com/grpc/grpc/pull/33669 issue tracking
https://github.com/grpc/grpc/pull/33670 issue tracking
https://github.com/grpc/grpc/pull/33672 issue tracking

Frequently Asked Questions

What is the severity of CVE-2023-4785?
CVE-2023-4785 has been scored as a high severity vulnerability.
How to fix CVE-2023-4785?
To fix CVE-2023-4785, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-4785 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-4785 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-4785?
CVE-2023-4785 affects Google gRPC.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.