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CVE-2007-5729

The NE2000 emulator in QEMU 0.8.2 allows local users to execute arbitrary code by writing...

7.2 HighFix available

The NE2000 emulator in QEMU 0.8.2 allows local users to execute arbitrary code by writing Ethernet frames with a size larger than the MTU to the EN0_TCNT register, which triggers a heap-based buffer overflow in the slirp library, aka NE2000 "mtu" heap overflow. NOTE: some sources have used CVE-2007-1321 to refer to this issue as part of "NE2000 network driver and the socket code," but this is the correct identifier for the mtu overflow vulnerability.

Exploit likelihood

0.58%Down 1.6 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.2

The NE2000 emulator in QEMU 0.8.2 allows local users to execute arbitrary code by writing Ethernet frames with a size larger than the MTU to the EN0_TCNT register, which triggers a heap-based buffer overflow in the slirp library, aka NE2000 "mtu" heap overflow. NOTE: some sources have used CVE-2007-1321 to refer to this issue as part of "NE2000 network driver and the socket code," but this is the correct identifier for the mtu overflow vulnerability.

Record
CVE-2007-5729
CVSS 2.0
7.2 HighAV:L/AC:L/Au:N/C:C/I:C/A:C
Weakness
CWE-119
Updated
2026-11-02
CVE List No score

The NE2000 emulator in QEMU 0.8.2 allows local users to execute arbitrary code by writing Ethernet frames with a size larger than the MTU to the EN0_TCNT register, which triggers a heap-based buffer overflow in the slirp library, aka NE2000 "mtu" heap overflow. NOTE: some sources have used CVE-2007-1321 to refer to this issue as part of "NE2000 network driver and the socket code," but this is the correct identifier for the mtu overflow vulnerability.

Record
CVE-2007-5729
Updated
2026-11-02
EUVDEUVD-2007-5700 No score

The NE2000 emulator in QEMU 0.8.2 allows local users to execute arbitrary code by writing Ethernet frames with a size larger than the MTU to the EN0_TCNT register, which triggers a heap-based buffer overflow in the slirp library, aka NE2000 "mtu" heap overflow. NOTE: some sources have used CVE-2007-1321 to refer to this issue as part of "NE2000 network driver and the socket code," but this is the correct identifier for the mtu overflow vulnerability.

Record
EUVD-2007-5700
Updated
2026-11-03
GitHub AdvisoriesGHSA-pqgp-87m3-3238 No score

The NE2000 emulator in QEMU 0.8.2 allows local users to execute arbitrary code by writing...

The NE2000 emulator in QEMU 0.8.2 allows local users to execute arbitrary code by writing Ethernet frames with a size larger than the MTU to the EN0_TCNT register, which triggers a heap-based buffer overflow in the slirp library, aka NE2000 "mtu" heap overflow. NOTE: some sources have used CVE-2007-1321 to refer to this issue as part of "NE2000 network driver and the socket code," but this is the correct identifier for the mtu overflow vulnerability.

Record
GHSA-pqgp-87m3-3238
Weakness
CWE-119
Updated
2026-11-02
OSV No score

The NE2000 emulator in QEMU 0.8.2 allows local users to execute arbitrary code by writing Ethernet frames with a size larger than the MTU to the EN0_TCNT register, which triggers a heap-based buffer overflow in the slirp library, aka NE2000 "mtu" heap overflow. NOTE: some sources have used CVE-2007-1321 to refer to this issue as part of "NE2000 network driver and the socket code," but this is the correct identifier for the mtu overflow vulnerability.

Record
CVE-2007-5729
Updated
2026-11-02
OSVDEBIAN-CVE-2007-5729 No score

The NE2000 emulator in QEMU 0.8.2 allows local users to execute arbitrary code by writing Ethernet frames with a size larger than the MTU to the EN0_TCNT register, which triggers a heap-based buffer overflow in the slirp library, aka NE2000 "mtu" heap overflow. NOTE: some sources have used CVE-2007-1321 to refer to this issue as part of "NE2000 network driver and the socket code," but this is the correct identifier for the mtu overflow vulnerability.

Record
DEBIAN-CVE-2007-5729
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
qemu
Debian:12
before 0.9.0-2
0.9.0-2
qemu
Debian:13
before 0.9.0-2
0.9.0-2
qemu
Debian:14
before 0.9.0-2
0.9.0-2
qemu
Debian:3.1
From an advisory covering 6 CVEs
before 0.6.1+20050407-1sarge1, plus listed versions
0.6.1+20050407-1
0.6.1+20050407-1sarge1
qemu
Debian:4.0
From an advisory covering 6 CVEs
before 0.8.2-4etch1, plus listed versions
0.8.2-4
0.8.2-4etch1

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
aliases
affected, aliases, facts, published, references, titleGitHub Advisories, OSV
first indexedCVE List, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2007-5729 is a high vulnerability (CVSS 7.2) in Qemu, published May 1, 2007. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.58%, the 48th percentile. Fixed in qemu 0.9.0-2.

References

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