CVE-2019-13164: n/a vulnerability

CVE-2019-13164: qemu-bridge-helper.c in QEMU 3.1 and 4.0.0 does not ensure that a network interface name (obtained from bri...

qemu-bridge-helper.c in QEMU 3.1 and 4.0.0 does not ensure that a network interface name (obtained from bridge.conf or a --br=bridge option) is limited to the IFNAMSIZ size, which can lead to an ACL bypass.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 4, 2024, 23:41 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2019-13164 is an ACL bypass in QEMU's qemu-bridge-helper. A too-long bridge interface name was not properly limited, which could allow intended bridge access controls to be bypassed. The public bundle names QEMU 3.1 and 4.0.0 and several Linux distribution security updates. Exposure is most likely on Linux virtualization hosts running affected QEMU builds where qemu-bridge-helper is installed and bridge ACL configuration is used. The bundle does not identify cloud services, appliances, or non-QEMU products as affected. Treat this as a virtualization platform hygiene issue. Prioritize patching internet-hosting or multi-user virtualization hosts first, then remaining QEMU systems through normal maintenance. No source in the bundle supports emergency active-exploitation handling. Mitigation focus: Apply QEMU security updates from the relevant operating system vendor.; Verify affected QEMU 3.1 or 4.0.0 deployments are upgraded or patched.; Review vendor advisories for fixed package versions and backports..

Prepared: Jun 6, 2026, 20:22 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jul 3, 2019, 13:56 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

11Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://lists.gnu.org/archive/html/qemu-devel/2019-07/msg00145.htmlCVE reference · x_refsource_MISC
20190825 [SECURITY] [DSA 4506-1] qemu security updateCVE reference · mailing-list, x_refsource_BUGTRAQ
DSA-4506CVE reference · vendor-advisory, x_refsource_DEBIAN
DSA-4512CVE reference · vendor-advisory, x_refsource_DEBIAN
20190902 [SECURITY] [DSA 4512-1] qemu security updateCVE reference · mailing-list, x_refsource_BUGTRAQ
[debian-lts-announce] 20190920 [SECURITY] [DLA 1927-1] qemu security updateCVE reference · mailing-list, x_refsource_MLIST
USN-4191-2CVE reference · vendor-advisory, x_refsource_UBUNTU
USN-4191-1CVE reference · vendor-advisory, x_refsource_UBUNTU
GLSA-202003-66CVE reference · vendor-advisory, x_refsource_GENTOO
https://github.com/qemu/qemu/commit/03d7712b4bcd47bfe0fe14ba2fffa87e111fa086CVE reference · x_refsource_MISC

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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