CVE-2024-25743Public exploit

Guest execution corruption via injected virtual interrupts

Published May 15, 2024 · Updated Mar 14, 2025

Improper input validation in Linux Kernel through 6.9 allows attackers controlling the hypervisor to corrupt SEV guest execution. The x86 interrupt-entry path accepts injected virtual interrupts 0 and 14 without authenticating their source, invoking exception handlers that alter guest state and can deliver SIGFPE to userspace. Exploitation requires hypervisor control and an AMD SEV-ES or SEV-SNP Linux guest; timed injections can alter application data or control flow.

CVSS severity7.1
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Linux Kernel through 6.9 allows attackers controlling the hypervisor to corrupt SEV guest execution. The x86 interrupt-entry path accepts injected virtual interrupts 0 and 14 without authenticating their source, invoking exception handlers that alter guest state and can deliver SIGFPE to userspace. Exploitation requires hypervisor control and an AMD SEV-ES or SEV-SNP Linux guest; timed injections can alter application data or control flow.

The record

CVE
CVE-2024-25743
Published
May 15, 2024
Updated
Mar 14, 2025
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-20, T1565.003
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. May 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 14, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=6.9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linux Kernelversion=0 <=6.9

Published CVSS scores

7.1CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
T1565.003Runtime Data Manipulation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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