CVE-2025-3677
lm-sys fastchat apply_delta.py apply_delta_low_cpu_mem deserialization
Description
A vulnerability classified as critical was found in lm-sys fastchat up to 0.2.36. This vulnerability affects the function split_files/apply_delta_low_cpu_mem of the file fastchat/model/apply_delta.py. The manipulation leads to deserialization. An attack has to be approached locally.
INFO
Published Date :
April 16, 2025, 9:15 a.m.
Last Modified :
April 16, 2025, 1:25 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2025-3677
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.
No affected product recoded yet
CVSS Scores
Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
---|---|---|---|---|---|---|
CVSS 2.0 | MEDIUM | [email protected] | ||||
CVSS 3.1 | MEDIUM | [email protected] | ||||
CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update lm-sys fastchat to the latest version.
- Review and sanitize deserialization inputs.
- Remove the vulnerable function split_files/apply_delta_low_cpu_mem.
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-2025-3677
.
URL | Resource |
---|---|
https://github.com/lm-sys/FastChat/issues/3713 | |
https://vuldb.com/?ctiid.304966 | |
https://vuldb.com/?id.304966 | |
https://vuldb.com/?submit.552755 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-3677
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-2025-3677
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-3677
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-3677
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.
-
New CVE Received by [email protected]
Apr. 16, 2025
Action Type Old Value New Value Added Description A vulnerability classified as critical was found in lm-sys fastchat up to 0.2.36. This vulnerability affects the function split_files/apply_delta_low_cpu_mem of the file fastchat/model/apply_delta.py. The manipulation leads to deserialization. An attack has to be approached locally. Added CVSS V4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/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 CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L Added CVSS V2 (AV:L/AC:L/Au:S/C:P/I:P/A:P) Added CWE CWE-20 Added CWE CWE-502 Added Reference https://github.com/lm-sys/FastChat/issues/3713 Added Reference https://vuldb.com/?ctiid.304966 Added Reference https://vuldb.com/?id.304966 Added Reference https://vuldb.com/?submit.552755