CVE-2024-3567Public exploit

Guest-triggered host crash via short fragmented SCTP packet

Published Apr 10, 2024 · Updated Nov 8, 2025

Reachable assertion in QEMU 8.2.92 allows guest OS users to crash the virtualization process via a short fragmented SCTP packet. In hw/net/net_tx_pkt.c, update_sctp_checksum processes a fragment shorter than the SCTP checksum field and passes it to iov_from_buf_full, which aborts when its offset cannot be satisfied. A guest able to submit transmit descriptors through an emulated igb network device can terminate its QEMU process and interrupt the hosted virtual machine.

CVSS severity5.5
Medium
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reachable assertion in QEMU 8.2.92 allows guest OS users to crash the virtualization process via a short fragmented SCTP packet. In hw/net/net_tx_pkt.c, update_sctp_checksum processes a fragment shorter than the SCTP checksum field and passes it to iov_from_buf_full, which aborts when its offset cannot be satisfied. A guest able to submit transmit descriptors through an emulated igb network device can terminate its QEMU process and interrupt the hosted virtual machine.

The record

CVE
CVE-2024-3567
Published
Apr 10, 2024
Updated
Nov 8, 2025
Vendor
Red Hat
Product
Red Hat Enterprise Linux 9
Classifications
CWE-617, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 8, 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 privilegesauthenticated

What is affected?

Red Hat · Red Hat Enterprise Linux 9Affected versions are unavailable in this record.
QEMU Project · QEMUversion=8.2.92

Published CVSS scores

5.5Red Hat, Inc.CVSS:3.1/AV:L/AC:L/PR:L/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-617Reachable Assertion
T1499Endpoint Denial of Service

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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