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CVE-2025-10164

lmsys sglang update_weights_from_tensor main deserialization

HIGH
7.3
CVSS Score
Published: September 9, 2025 at 06:32 PM UTC
Updated: June 17, 2026 at 08:27 AM UTC
1 product affected across 1 vendorSglang

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Severity
HIGH7.3
Exploit prediction
EPSS 0.4%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

SignaturePermissions Required
Source: [email protected]
https://vuldb.com/?ctiid.323203
VDB EntryTechnical Description
Source: [email protected]
https://vuldb.com/?id.323203
Third Party Advisory
Source: [email protected]
https://vuldb.com/?submit.635919

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.3HIGHVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-20CWE-502

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