CVE-2025-3677 — lm-sys fastchat apply_delta.py apply_delta_low_cpu_mem deserialization

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
lm-sys / fastchat	affected 0.2.0; affected 0.2.1; affected 0.2.2; affected 0.2.3; affected 0.2.4; affected 0.2.5; affected 0.2.6; affected 0.2.7; affected 0.2.8; affected 0.2.9; affected 0.2.10; affected 0.2.11; affected 0.2.12; affected 0.2.13; affected 0.2.14; affected 0.2.15; affected 0.2.16; affected 0.2.17; affected 0.2.18; affected 0.2.19; affected 0.2.20; affected 0.2.21; affected 0.2.22; affected 0.2.23; affected 0.2.24; affected 0.2.25; affected 0.2.26; affected 0.2.27; affected 0.2.28; affected 0.2.29; affected 0.2.30; affected 0.2.31; affected 0.2.32; affected 0.2.33; affected 0.2.34; affected 0.2.35; affected 0.2.36

Vendor / product

Versions

lm-sys / fastchat

affected 0.2.0; affected 0.2.1; affected 0.2.2; affected 0.2.3; affected 0.2.4; affected 0.2.5; affected 0.2.6; affected 0.2.7; affected 0.2.8; affected 0.2.9; affected 0.2.10; affected 0.2.11; affected 0.2.12; affected 0.2.13; affected 0.2.14; affected 0.2.15; affected 0.2.16; affected 0.2.17; affected 0.2.18; affected 0.2.19; affected 0.2.20; affected 0.2.21; affected 0.2.22; affected 0.2.23; affected 0.2.24; affected 0.2.25; affected 0.2.26; affected 0.2.27; affected 0.2.28; affected 0.2.29; affected 0.2.30; affected 0.2.31; affected 0.2.32; affected 0.2.33; affected 0.2.34; affected 0.2.35; affected 0.2.36

CWE

CWE-502, CWE-20

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.