CVE-2025-4565
Google Protocol Buffers Python Denial of Service
Description
Any project that uses Protobuf Pure-Python backend to parse untrusted Protocol Buffers data containing an arbitrary number of recursive groups, recursive messages or a series of SGROUP tags can be corrupted by exceeding the Python recursion limit. This can result in a Denial of service by crashing the application with a RecursionError. We recommend upgrading to version =>6.31.1 or beyond commit 17838beda2943d08b8a9d4df5b68f5f04f26d901
INFO
Published Date :
June 16, 2025, 3:15 p.m.
Last Modified :
Aug. 14, 2025, 5:05 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2025-4565
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Upgrade Google Protocol Buffers to a patched version.
- Update all affected protobuf packages.
Public PoC/Exploit Available at Github
CVE-2025-4565 has a 3 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-4565.
| URL | Resource |
|---|---|
| https://github.com/protocolbuffers/protobuf/commit/17838beda2943d08b8a9d4df5b68f5f04f26d901 | Patch |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-4565 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-4565
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
NVIDIA AI Blueprints 视频搜索与摘要AI代理 学习项目 主要学习视频数据处理和视觉 Agent&RAG 构建
Jupyter Notebook Python Shell Svelte JavaScript TypeScript Dockerfile HTML CSS Jinja
Blueprint for Ingesting massive volumes of live or archived videos and extract insights for summarization and interactive Q&A
llm rag vlm
Jupyter Notebook Python Shell Dockerfile HTML CSS Jinja Svelte JavaScript TypeScript
All Public RunWhen Helm Charts - Managed by terraform
Smarty Shell Dockerfile
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-4565 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-4565 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Reanalysis by [email protected]
Aug. 14, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Removed CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed CPE Configuration OR *cpe:2.3:a:google:protobuf:4.25.8:*:*:*:*:python:*:* *cpe:2.3:a:google:protobuf:5.29.5:*:*:*:*:python:*:* *cpe:2.3:a:google:protobuf:6.31.1:*:*:*:*:python:*:* OR *cpe:2.3:a:google:protobuf-python:*:*:*:*:*:*:*:* versions up to (excluding) 4.25.8 *cpe:2.3:a:google:protobuf-python:*:*:*:*:*:*:*:* versions from (including) 5.26.0 up to (excluding) 5.29.5 *cpe:2.3:a:google:protobuf-python:*:*:*:*:*:*:*:* versions from (including) 6.30.0 up to (excluding) 6.31.1 -
Initial Analysis by [email protected]
Aug. 07, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CPE Configuration OR *cpe:2.3:a:google:protobuf:4.25.8:*:*:*:*:python:*:* *cpe:2.3:a:google:protobuf:5.29.5:*:*:*:*:python:*:* *cpe:2.3:a:google:protobuf:6.31.1:*:*:*:*:python:*:* Added Reference Type Google Inc.: https://github.com/protocolbuffers/protobuf/commit/17838beda2943d08b8a9d4df5b68f5f04f26d901 Types: Patch -
New CVE Received by [email protected]
Jun. 16, 2025
Action Type Old Value New Value Added Description Any project that uses Protobuf Pure-Python backend to parse untrusted Protocol Buffers data containing an arbitrary number of recursive groups, recursive messages or a series of SGROUP tags can be corrupted by exceeding the Python recursion limit. This can result in a Denial of service by crashing the application with a RecursionError. We recommend upgrading to version =>6.31.1 or beyond commit 17838beda2943d08b8a9d4df5b68f5f04f26d901 Added CVSS V4.0 AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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:X Added CWE CWE-674 Added Reference https://github.com/protocolbuffers/protobuf/commit/17838beda2943d08b8a9d4df5b68f5f04f26d901