CVE-2025-3677

See a problem?
Please try reporting it to the source first.

Source

https://cve.org/CVERecord?id=CVE-2025-3677

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-3677.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2025-3677

Published

2025-04-16T08:31:04.475Z

Modified

2026-08-12T03:51:24.529728566Z

Severity

4.8 (Medium) CVSS_V4 - 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 CVSS Calculator

Summary

lm-sys fastchat apply_delta.py apply_delta_low_cpu_mem deserialization

Details

A vulnerability classified as critical was found in lm-sys fastchat up to 0.2.36. This vulnerability affects the function splitfiles/applydeltalowcpumem of the file fastchat/model/applydelta.py. The manipulation leads to deserialization. An attack has to be approached locally.

Database specific

{
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "0.2.0"
                },
                {
                    "last_affected": "0.2.0"
                },
                {
                    "introduced": "0.2.2"
                },
                {
                    "last_affected": "0.2.2"
                },
                {
                    "introduced": "0.2.4"
                },
                {
                    "last_affected": "0.2.4"
                },
                {
                    "introduced": "0.2.6"
                },
                {
                    "last_affected": "0.2.6"
                },
                {
                    "introduced": "0.2.7"
                },
                {
                    "last_affected": "0.2.7"
                },
                {
                    "introduced": "0.2.8"
                },
                {
                    "last_affected": "0.2.8"
                },
                {
                    "introduced": "0.2.10"
                },
                {
                    "last_affected": "0.2.10"
                },
                {
                    "introduced": "0.2.11"
                },
                {
                    "last_affected": "0.2.11"
                },
                {
                    "introduced": "0.2.12"
                },
                {
                    "last_affected": "0.2.12"
                },
                {
                    "introduced": "0.2.13"
                },
                {
                    "last_affected": "0.2.13"
                },
                {
                    "introduced": "0.2.15"
                },
                {
                    "last_affected": "0.2.15"
                },
                {
                    "introduced": "0.2.16"
                },
                {
                    "last_affected": "0.2.16"
                },
                {
                    "introduced": "0.2.17"
                },
                {
                    "last_affected": "0.2.17"
                },
                {
                    "introduced": "0.2.19"
                },
                {
                    "last_affected": "0.2.19"
                },
                {
                    "introduced": "0.2.20"
                },
                {
                    "last_affected": "0.2.20"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ],
    "cna_assigner": "VulDB",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/3xxx/CVE-2025-3677.json",
    "cwe_ids": [
        "CWE-20",
        "CWE-502"
    ]
}

References

Affected packages

Git / github.com/lm-sys/fastchat

Affected ranges

Type

GIT

Repo

https://github.com/lm-sys/fastchat

Events

Introduced

074f0b18155a81158dacbcba7db68807d14cb471

Last affected

b21d0f780ca4472a13714262a0790f2ee1ade659

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "0.2.1"
        },
        {
            "last_affected": "0.2.1"
        },
        {
            "introduced": "0.2.3"
        },
        {
            "last_affected": "0.2.3"
        },
        {
            "introduced": "0.2.5"
        },
        {
            "last_affected": "0.2.5"
        },
        {
            "introduced": "0.2.9"
        },
        {
            "last_affected": "0.2.9"
        },
        {
            "introduced": "0.2.14"
        },
        {
            "last_affected": "0.2.14"
        },
        {
            "introduced": "0.2.18"
        },
        {
            "last_affected": "0.2.18"
        },
        {
            "introduced": "0.2.21"
        },
        {
            "last_affected": "0.2.21"
        },
        {
            "introduced": "0.2.22"
        },
        {
            "last_affected": "0.2.22"
        },
        {
            "introduced": "0.2.23"
        },
        {
            "last_affected": "0.2.23"
        },
        {
            "introduced": "0.2.24"
        },
        {
            "last_affected": "0.2.24"
        },
        {
            "introduced": "0.2.25"
        },
        {
            "last_affected": "0.2.25"
        },
        {
            "introduced": "0.2.26"
        },
        {
            "last_affected": "0.2.26"
        },
        {
            "introduced": "0.2.27"
        },
        {
            "last_affected": "0.2.27"
        },
        {
            "introduced": "0.2.28"
        },
        {
            "last_affected": "0.2.28"
        },
        {
            "introduced": "0.2.29"
        },
        {
            "last_affected": "0.2.29"
        },
        {
            "introduced": "0.2.30"
        },
        {
            "last_affected": "0.2.30"
        },
        {
            "introduced": "0.2.31"
        },
        {
            "last_affected": "0.2.31"
        },
        {
            "introduced": "0.2.32"
        },
        {
            "last_affected": "0.2.32"
        },
        {
            "introduced": "0.2.33"
        },
        {
            "last_affected": "0.2.33"
        },
        {
            "introduced": "0.2.34"
        },
        {
            "last_affected": "0.2.34"
        },
        {
            "introduced": "0.2.35"
        },
        {
            "last_affected": "0.2.35"
        },
        {
            "introduced": "0.2.36"
        },
        {
            "last_affected": "0.2.36"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

0.*

0.2.1

0.2.14

0.2.18

0.2.21

0.2.22

0.2.23

0.2.24

0.2.25

0.2.26

0.2.27

0.2.28

0.2.29

0.2.3

0.2.30

0.2.31

0.2.32

0.2.33

0.2.34

0.2.35

0.2.36

0.2.5

0.2.9

v0.*

v0.2.1

v0.2.14

v0.2.18

v0.2.21

v0.2.22

v0.2.23

v0.2.25

v0.2.26

v0.2.27

v0.2.28

v0.2.29

v0.2.3

v0.2.30

v0.2.31

v0.2.32

v0.2.33

v0.2.34

v0.2.35

v0.2.36

v0.2.5

v0.2.9

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-3677.json"