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CVE-2019-13164

25
FAUCET Score

CVE-2019-13164 is a vulnerability in qemu-bridge-helper.c within QEMU versions 3.1 and 4.0.0, as well as affected distributions like Canonical, Debian, and openSUSE. It stems from a failure to limit network interface names to the IFNAMSIZ size, potentially leading to an Access Control List (ACL) bypass. Rated with a CVSS score of 7.8 (HIGH), this vulnerability has a local attack vector, low attack complexity, and could result in high impacts to confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.1CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:3.1:*:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:4.0.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.52%
Probability of exploitation in next 30 days
EPSS Percentile
41.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0052 is in the 81st percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

github_advisorypatch availablevia nvd_reference
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: qemu-kvm
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: qemu-kvm-ma
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: qemu-kvm-rhev
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: virt:rhel/qemu-kvm
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8 Advanced VirtualizationFixed in: virt:8.0.0/qemu-kvm
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenStack Platform 10 (Newton)Fixed in: qemu-kvm-rhev
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenStack Platform 13 (Queens)Fixed in: qemu-kvm-rhev
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenStack Platform 9 (Mitaka)Fixed in: qemu-kvm-rhev

Vendor Advisories (1)

redhatCVE-2019-13164Low

Qemu: qemu-bridge-helper ACL can be bypassed when names are too long

Jun 28, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-09/msg00000.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2019-09/msg00008.html
Mailing ListThird Party Advisory
github.com / qemu/qemu/commit/03d7712b4bcd47bfe0fe14ba2fffa87e111fa086
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2019/09/msg00021.html
Mailing ListThird Party Advisory
lists.gnu.org / archive/html/qemu-devel/2019-07/msg00145.html
Mailing ListPatchVendor Advisory
seclists.org / bugtraq/2019/Aug/41
Mailing ListThird Party Advisory
seclists.org / bugtraq/2019/Sep/3
Mailing ListThird Party Advisory
security.gentoo.org / glsa/202003-66
Third Party Advisory
usn.ubuntu.com / 4191-1
Third Party Advisory
usn.ubuntu.com / 4191-2
Third Party Advisory
debian.org / security/2019/dsa-4506
Third Party Advisory
debian.org / security/2019/dsa-4512
Third Party Advisory
openwall.com / lists/oss-security/2019/07/02/2
Mailing ListThird Party Advisory
securityfocus.com / bid/109054
Broken Link