CVE-2023-4785

Aliases:GHSA-p25m-jpj4-qcrr
Advisory lineage Upstream: 0 Downstream: 4
Modified
Published: 13 Sept 2023, 16:31
Last modified:12 Jan 2026, 15:34

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
v3.1 (cve.org)
EPSS Score
0.04% LOW
0% probability +0.02%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

13 Sept 2023, 16:31
Published
Vulnerability first disclosed
12 Jan 2026, 15:34
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.04%• Percentile: 13%

Techniques & Countermeasures

  • CWE-248•Uncaught Exception

    An exception is thrown from a function, but it is not caught.

Affected Systems

  • RubyGems•grpc

    ≥ 1.56.0, < 1.56.2 | ≥ 1.55.0, < 1.55.3 | ≥ 1.54.0, < 1.54.3 | ≥ 1.53.0, < 1.53.2

  • google•grpc

    ≥ 1.56.0, ≤ 1.56.1 | ≥ 1.55.0, ≤ 1.55.2 | ≥ 1.54.0, ≤ 1.54.2 | ≥ 1.53.0, ≤ 1.53.1

  • grpc•grpc

    ≥ 1.23.0, < 1.53.2 | ≥ 1.54.0, < 1.54.3 | ≥ 1.55.0, < 1.55.3 | 1.56.0

  • PyPI•grpcio

    ≥ 1.55.0, < 1.55.3 | ≥ 1.54.0, < 1.54.3 | ≥ 1.53.0, < 1.53.2

References (12)