CVE-2025-10164
lmsys sglang update_weights_from_tensor main deserialization
- State
- Published
- Severity
- 6.9 Medium
- Published
- Sep 9, 2025
- Updated
- Sep 10, 2025
- Reserved
- Sep 9, 2025
Description
A security flaw has been discovered in lmsys sglang 0.4.6. Affected by this vulnerability is the function main of the file /update_weights_from_tensor. The manipulation of the argument serialized_named_tensors results in deserialization. The attack can be launched remotely. The exploit has been released to the public and may be exploited. The vendor was contacted early about this disclosure but did not respond in any way.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 7.3 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 7.3 High | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 7.5 High | AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
sglanglmsys |
|
References
- VDB-323203 | lmsys sglang update_weights_from_tensor main deserializationvdb-entrytechnical-description
- VDB-323203 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #635919 | lmsys sglang >=0.4.6 Deserializationthird-party-advisory
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