CVE-2025-3677

MEDIUM EPSS 6.6%

Published Apr 16, 20251y ago · Modified Jun 17, 20262w ago

4.8 CVSS 4.0

Medium

Published Apr 16, 2025 1y ago

Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score

4.8

Exploitability

—

Impact

—

Vector string

CVSS:4.0/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

Attack Vector Local

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

6.6% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 2

CWE-20 Improper Input Validation Validation

CWE-502 Deserialization of Untrusted Data Validation

References 4

github.com https://github.com/lm-sys/FastChat/issues/3713
vuldb.com https://vuldb.com/?ctiid.304966
vuldb.com https://vuldb.com/?id.304966
vuldb.com https://vuldb.com/?submit.552755

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.