CVE-2025-12464Public exploit

Host process crash via short loopback frames

Published Oct 31, 2025 · Updated Oct 31, 2025

Stack-based buffer overflow in QEMU 8.1.0 through 10.1.2 allows guest OS users to crash the host process via a short e1000 loopback frame. The e1000 loopback receive path passes an unpadded short frame to e1000_receive_iov(), which reads beyond the net core's stack iovec. A guest must enable e1000 loopback and transmit the short frame; exploitation terminates its host-side QEMU process.

CVSS severity6.2
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in QEMU 8.1.0 through 10.1.2 allows guest OS users to crash the host process via a short e1000 loopback frame. The e1000 loopback receive path passes an unpadded short frame to e1000_receive_iov(), which reads beyond the net core's stack iovec. A guest must enable e1000 loopback and transmit the short frame; exploitation terminates its host-side QEMU process.

The record

CVE
CVE-2025-12464
Published
Oct 31, 2025
Updated
Oct 31, 2025
Vendor
389 Directory Server
Product
Red Hat Enterprise Linux 10
Classifications
CWE-121, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 31, 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?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

389 Directory Server · Red Hat Enterprise Linux 10Affected versions are unavailable in this record.
389 Directory Server · Red Hat Enterprise Linux 9Affected versions are unavailable in this record.
389 Directory Server · Red Hat OpenShift Container Platform 4Affected versions are unavailable in this record.

Published CVSS scores

6.2Red HatCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1499.004Application or System Exploitation

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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