Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-7328— Unverified AXI Address in Subsystem Mode Commands Enables Denial of Service

Quick assessment

Affected
Caliptra Core Runtime Firmware
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.

CHIPS Alliance Core Runtime Firmware是CHIPS Alliance组织的一个嵌入式服务器的核心运行时固件 CHIPS Alliance Core Runtime Firmware 2.1.0版本存在授权问题漏洞，该漏洞源于对INVOKE_DPE_MLDSA87、CM_AES_GCM_DECRYPT_DMA、EXTERNAL_MAILBOX_CMD命令缺少授权检查，可能导致具有权限的本地攻击者通过包含未验证AXI地址的邮箱命令造成拒绝服务。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.13% · P3

Affected Version Matrix 2

VendorProduct Version RangeStatus
Caliptra Core Runtime Firmware 2.1.0 affected
2.1.1 unaffected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-7328

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Unverified AXI Address in Subsystem Mode Commands Enables Denial of Service
Source: CVE Program / CVE List V5
Vulnerability Description
Missing authorization in Caliptra Core Runtime Firmware (INVOKE_DPE_MLDSA87, CM_AES_GCM_DECRYPT_DMA, EXTERNAL_MAILBOX_CMD commands) in subsystem mode allows a privileged local attacker to cause a denial of service via mailbox commands containing unverified AXI addresses. The security impact beyond availability is integration-specific. This issue affects Core Runtime Firmware: 2.1.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
CHIPS Alliance Core Runtime Firmware 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CHIPS Alliance Core Runtime Firmware是CHIPS Alliance组织的一个嵌入式服务器的核心运行时固件 CHIPS Alliance Core Runtime Firmware 2.1.0版本存在授权问题漏洞，该漏洞源于对INVOKE_DPE_MLDSA87、CM_AES_GCM_DECRYPT_DMA、EXTERNAL_MAILBOX_CMD命令缺少授权检查，可能导致具有权限的本地攻击者通过包含未验证AXI地址的邮箱命令造成拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Caliptra Core Runtime Firmware 2.1.0 -

II. Public POCs for CVE-2026-7328

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-7328

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-7328 (1)

IV. Related Vulnerabilities

Same product: Core Runtime Firmware
Same vendor: Caliptra
Same weakness: CWE-862