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CVE-2025-54506

Quick assessment

Affected
AMD AMD EPYC™ 9005 Series Processors
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.

AMD SEV（安全加密虚拟化）固件中存在一个“检查与使用之间”（TOCTOU）竞态条件漏洞。拥有管理员权限的攻击者可利用该漏洞绕过对散列列表（scatter lists）的安全检查，进而可能导致虚拟机（guest）完整性受损。

CVSS 4.0 · Medium
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I. Basic Information for CVE-2025-54506

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A time-of-check to time-of-use (TOCTOU) race condition in the AMD SEV Secure Encrypted Virtualization (SEV) firmware could allow an attacker with administrative privileges to bypass security checks on scatter lists, potentially resulting in loss of guest integrity.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
AMD AMD EPYC™ 9005 Series Processors TurinPI_1.0.0.A -
AMD AMD EPYC™ Embedded 9005 Series Processors EmbeddedTurinPI_SP5_1004 -

II. Public POCs for CVE-2025-54506

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III. Intelligence Information for CVE-2025-54506

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Other References for CVE-2025-54506 (1)

Same Patch Batch · AMD · 2026-11-10 · 24 CVEs total

CVE-2025-0008 8.4 HIGH 某软件 SDU 验证不足致本地调试绕过
CVE-2025-48504 6.8 MEDIUM SEV 固件资源释放后操作漏洞致机密性完整性丧失
CVE-2025-29941 6.0 MEDIUM SEV固件伪随机数种子漏洞致密钥泄露
CVE-2026-0435 6.0 MEDIUM AMD SEV固件资源释放后操作漏洞
CVE-2026-0480 6.0 MEDIUM AMD SEV 固件认证缺失漏洞致内存机密性受损
CVE-2025-54504 5.9 MEDIUM AMD SEV 固件访问控制不足漏洞致完整性受损
CVE-2026-0003 5.9 MEDIUM AMD SEV 固件降级漏洞：静态密钥导致内存解密
CVE-2026-28248 5.9 MEDIUM AMD SEV 固件行为工作流执行不当致完整性丧失
CVE-2026-28247 5.9 MEDIUM AMD SEV 固件内存镜像访问控制漏洞致完整性丢失
CVE-2026-40670 5.9 MEDIUM AMD SEV-SNP 异常检查不当致完整性受损
CVE-2025-62621 5.9 MEDIUM AMD SEV固件违规致RMP绕过，破坏SEV-SNP内存完整性
CVE-2025-62620 5.9 MEDIUM QEMU 输入验证漏洞致内存完整性丢失
CVE-2025-29940 5.9 MEDIUM AMD SEV 固件未验证所有权漏洞致数据完整性受损
CVE-2025-52535 5.9 MEDIUM AMD SEV 固件资源重用漏洞致内存完整性丧失
CVE-2025-54503 5.9 MEDIUM SEV 固件内存重叠处理缺陷致完整性受损
CVE-2025-0027 5.9 MEDIUM AMD SEV固件访问控制漏洞致RMP保护绕过
CVE-2026-40668 4.6 MEDIUM AMD SEV 固件认证绕过漏洞
CVE-2026-28249 4.6 MEDIUM AMD SEV 固件共享状态一致性漏洞致完整性受损
CVE-2026-0454 4.6 MEDIUM AMD SEV 固件越界写入漏洞致完整性受损
CVE-2024-36309 4.6 MEDIUM AMD NBIO 锁位缺失导致重映射漏洞

Showing top 20 of 24 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: AMD EPYC™ 9005 Series Processors
Same vendor: AMD
Same weakness: CWE-367