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CVE-2025-3677

lm-sys fastchat apply_delta.py apply_delta_low_cpu_mem deserialization

CVSS 4.8 MEDIUMEPSS 0.2%CWE-20CWE-502
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 4.8EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
16 Apr 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Affected products
lm-sys · fastchat

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