CVE-2026-124996— Turboderp-org ExLlamaV3 hash-MoE routing routing.cu routing_sel_norm_kernel out-of-bounds

Quick assessment

Affected

Turboderp-org ExLlamaV3

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Turboderp-org 的 ExLlamaV3 项目（版本 1.6.3 及更早版本）中发现一个安全弱点。受影响的是组件 hash-MoE routing 中文件 exllamav3/exllamav3_ext/routing.cu 内的函数 routing_sel_norm_kernel。该函数对参数 gate.tid2eid 的处理不当，会导致越界读取（out-of-bounds read）漏洞，且该漏洞可被远程利用。升级至版本 1.6.4 即可修复此问题。修复补丁提交哈希为：c9a57ae832a303

CVSS 6.3 · Medium Updated Nov 10, 2026

Possible ATT&CK Techniques 2 AI

T1068.002 T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

Turboderp-org ExLlamaV3 hash-MoE routing routing.cu routing_sel_norm_kernel out-of-bounds

Source: CVE Program / CVE List V5

Vulnerability Description

A weakness has been identified in Turboderp-org ExLlamaV3 up to 1.6.3. The impacted element is the function routing_sel_norm_kernel of the file exllamav3/exllamav3_ext/routing.cu of the component hash-MoE routing. This manipulation of the argument gate.tid2eid causes out-of-bounds read. Remote exploitation of the attack is possible. Upgrading to version 1.6.4 is sufficient to resolve this issue. Patch name: c9a57ae832a3035e264e0a412e1daf4ebb699b98. Upgrading the affected component is recommended.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

Source: CVE Program / CVE List V5

Vulnerability Type

跨界内存读

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Turboderp-org	ExLlamaV3	1.6.0	`cpe:2.3:a:turboderp-org:exllamav3::::::::`

II. Public POCs for CVE-2026-124996

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-124996

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Vendor Advisories for CVE-2026-124996 (1)

CVE-2026-124996 | Turboderp-org ExLlamaV3 up to 1.6.3 hash-MoE routing routing.cu routing_sel_norm_kernel gate.tid2eid out-of-bounds (Issue 526) vdb-entry technical-description

Other References for CVE-2026-124996 (7)

https://github.com/turboderp-org/exllamav3/releases/tag/v1.6.4 patch
https://github.com/turboderp-org/exllamav3/commit/c9a57ae832a3035e264e0a412e1daf4ebb699b98 patch
https://github.com/turboderp-org/exllamav3/ product
https://github.com/turboderp-org/exllamav3/issues/526 issue-tracking
https://vuldb.com/cve/CVE-2026-124996 third-party-advisory
https://vuldb.com/vuln/433166/cti signature permissions-required
https://vuldb.com/submit/1040627 third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-124996

IV. Related Vulnerabilities

Same product: ExLlamaV3

Same vendor: Turboderp-org

Same weakness: CWE-125