CVE-2025-3677
4.8
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
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| lm-sys | fastchat | 0.2.0 | affected |
| lm-sys | fastchat | 0.2.1 | affected |
| lm-sys | fastchat | 0.2.2 | affected |
| lm-sys | fastchat | 0.2.3 | affected |
| lm-sys | fastchat | 0.2.4 | affected |
| lm-sys | fastchat | 0.2.5 | affected |
| lm-sys | fastchat | 0.2.6 | affected |
| lm-sys | fastchat | 0.2.7 | affected |
| lm-sys | fastchat | 0.2.8 | affected |
| lm-sys | fastchat | 0.2.9 | affected |
| lm-sys | fastchat | 0.2.10 | affected |
| lm-sys | fastchat | 0.2.11 | affected |
| lm-sys | fastchat | 0.2.12 | affected |
| lm-sys | fastchat | 0.2.13 | affected |
| lm-sys | fastchat | 0.2.14 | affected |
| lm-sys | fastchat | 0.2.15 | affected |
| lm-sys | fastchat | 0.2.16 | affected |
| lm-sys | fastchat | 0.2.17 | affected |
| lm-sys | fastchat | 0.2.18 | affected |
| lm-sys | fastchat | 0.2.19 | affected |
| lm-sys | fastchat | 0.2.20 | affected |
| lm-sys | fastchat | 0.2.21 | affected |
| lm-sys | fastchat | 0.2.22 | affected |
| lm-sys | fastchat | 0.2.23 | affected |
| lm-sys | fastchat | 0.2.24 | affected |
| lm-sys | fastchat | 0.2.25 | affected |
| lm-sys | fastchat | 0.2.26 | affected |
| lm-sys | fastchat | 0.2.27 | affected |
| lm-sys | fastchat | 0.2.28 | affected |
| lm-sys | fastchat | 0.2.29 | affected |
| lm-sys | fastchat | 0.2.30 | affected |
| lm-sys | fastchat | 0.2.31 | affected |
| lm-sys | fastchat | 0.2.32 | affected |
| lm-sys | fastchat | 0.2.33 | affected |
| lm-sys | fastchat | 0.2.34 | affected |
| lm-sys | fastchat | 0.2.35 | affected |
| lm-sys | fastchat | 0.2.36 | affected |
Weaknesses
- CWE-502: Deserialization
- CWE-20: Improper Input Validation
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://vuldb.com/?id.304966
- https://vuldb.com/?ctiid.304966
- https://vuldb.com/?submit.552755
- https://github.com/lm-sys/FastChat/issues/3713
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