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CVE-2025-40109— crypto: rng - Ensure set_ent is always present

Quick assessment

Affected
Linux Linux
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.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未确保set_ent始终存在，可能导致加密随机数生成问题。

EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 77ebdabe8de7c02f43c6de3357f79ff96f9f0579< 15d6f42da1bb527629d8e1067b1302d58dec9166 affected
77ebdabe8de7c02f43c6de3357f79ff96f9f0579< bd903c25b652c331831226cdf56c8179d18e43f4 affected
77ebdabe8de7c02f43c6de3357f79ff96f9f0579< 17acbcd44fe8dc17dc1072375e76df2d52da6ac8 affected
77ebdabe8de7c02f43c6de3357f79ff96f9f0579< ab172f4f42626549b02bada05f09e3f2b0cc26ec affected
77ebdabe8de7c02f43c6de3357f79ff96f9f0579< c5c703b50e91dd4748769f4c5ab50d9ad60be370 affected
77ebdabe8de7c02f43c6de3357f79ff96f9f0579< e247a7d138e514a40edda7c4d72c8bd49bb2cad3 affected
77ebdabe8de7c02f43c6de3357f79ff96f9f0579< 915cb75983bc5e8b80f8a2f25a4af463f7b18c14 affected
77ebdabe8de7c02f43c6de3357f79ff96f9f0579< c0d36727bf39bb16ef0a67ed608e279535ebf0da affected
… +10 more rows
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I. Basic Information for CVE-2025-40109

Vulnerability Information
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Vulnerability Title
crypto: rng - Ensure set_ent is always present
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: crypto: rng - Ensure set_ent is always present Ensure that set_ent is always set since only drbg provides it.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未确保set_ent始终存在，可能导致加密随机数生成问题。
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
Linux Linux 77ebdabe8de7c02f43c6de3357f79ff96f9f0579 ~ 15d6f42da1bb527629d8e1067b1302d58dec9166 -
Linux Linux 5.10 -

II. Public POCs for CVE-2025-40109

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2025-40109

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Other References for CVE-2025-40109 (2)

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-40109

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