CVE-2023-3019Public exploit

Guest-triggered host process crash via DMA reentrancy

Published Jul 24, 2023 · Updated May 12, 2026

Use-after-free in QEMU e1000e NIC emulation allows privileged guest OS users to crash the host QEMU process through DMA reentrancy. Reentrant MMIO during packet receive reallocates and frees the RX packet iovec while e1000e_write_packet_to_guest retains and dereferences the stale pointer. Exploitation requires control of a guest configured with the emulated e1000e NIC and interrupts that guest's virtual machine service.

CVSS severity6.0
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Use-after-free in QEMU e1000e NIC emulation allows privileged guest OS users to crash the host QEMU process through DMA reentrancy. Reentrant MMIO during packet receive reallocates and frees the RX packet iovec while e1000e_write_packet_to_guest retains and dereferences the stale pointer. Exploitation requires control of a guest configured with the emulated e1000e NIC and interrupts that guest's virtual machine service.

The record

CVE
CVE-2023-3019
Published
Jul 24, 2023
Updated
May 12, 2026
Vendor
Siemens
Product
RUGGEDCOM ROX RX1500
Classifications
CWE-416, T1499.004
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jul 24, 2023CVE publishedPublication date reported by the CVE source.
  2. May 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0 <V2.17.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Siemens · RUGGEDCOM ROX RX1500version=0 <V2.17.1
Siemens · RUGGEDCOM ROX RX5000version=0 <V2.17.1
Red Hat · Red Hat Enterprise Linux 8Affected versions are unavailable in this record.
Siemens · RUGGEDCOM ROX RX1511version=0 <V2.17.1
Siemens · RUGGEDCOM ROX MX5000REversion=0 <V2.17.1
Siemens · RUGGEDCOM ROX RX1536version=0 <V2.17.1
Red Hat · Red Hat Enterprise Linux 8 Advanced VirtualizationAffected versions are unavailable in this record.
Siemens · RUGGEDCOM ROX RX1512version=0 <V2.17.1
Red Hat · Red Hat Enterprise Linux 9Affected versions are unavailable in this record.
Siemens · RUGGEDCOM ROX RX1510version=0 <V2.17.1
Red Hat · Red Hat Enterprise Linux 8.8 Extended Update SupportAffected versions are unavailable in this record.
Siemens · RUGGEDCOM ROX RX1524version=0 <V2.17.1
Red Hat · Red Hat Enterprise Linux 8.6 Extended Update SupportAffected versions are unavailable in this record.
Siemens · RUGGEDCOM ROX RX1501version=0 <V2.17.1
Siemens · RUGGEDCOM ROX RX1400version=0 <V2.17.1
Siemens · RUGGEDCOM ROX MX5000version=0 <V2.17.1

Published CVSS scores

6.0Siemens ProductCERTCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
6.0Red HatCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
6.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-416Use After Free
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo