VIR Vulnerability Intelligence Relay

CVE-2015-7512

critical
Published 2016-01-08 · Modified 2026-05-06
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
9.0
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4 NEW
—
not yet in upstream
VIR risk
9.0

Description

Buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU, when a guest NIC has a larger MTU, allows remote attackers to cause a denial of service (guest OS crash) or execute arbitrary code via a large packet.

Predictions

Exploit likelihood
93%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact
OSVersionStatusFixed in
redhat rhel6.0affected
redhat rhel6.7affected
debian debian7.0affected
debian debian8.0affected
debian debianbookwormfixed1:2.5+dfsg-1
debian debianbullseyefixed1:2.5+dfsg-1
debian debianforkyfixed1:2.5+dfsg-1
debian debiansidfixed1:2.5+dfsg-1
debian debiantrixiefixed1:2.5+dfsg-1

Application impact
VendorProductVersionsFixed
qemuqemu{"endIncluding":"2.4.1"}
qemuqemu2.5.0
redhat redhatopenstack5.0
redhat redhatvirtualization3.0

References

CWEs

CWE-120

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.