HIGH
CVE-2019-13164
NVD-CWE-noinfoPublished: July 3, 2019· Updated: Jun 17, 2026
7.8
CVSS v3.1
Official Description
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.
Technical Analysis
CVE-2019-13164 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
ADVISORYhttps://usn.ubuntu.com/4191-1/
ADVISORYhttps://usn.ubuntu.com/4191-2/
ADVISORYhttps://usn.ubuntu.com/4191-1/
ADVISORYhttps://usn.ubuntu.com/4191-2/
All References (34)
→
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00000.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00008.htmlMailing List · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2019/07/02/2Mailing List · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2019/07/02/2Mailing List · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2019/07/02/2Mailing List · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2019/07/02/2Mailing List · Third Party Advisory
→
http://www.securityfocus.com/bid/109054Broken Link
→
https://github.com/qemu/qemu/commit/03d7712b4bcd47bfe0fe14ba2fffa87e111fa086Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2019/09/msg00021.htmlMailing List · Third Party Advisory
→
https://lists.gnu.org/archive/html/qemu-devel/2019-07/msg00145.htmlMailing List · Patch · Vendor Advisory
→
https://seclists.org/bugtraq/2019/Aug/41Mailing List · Third Party Advisory
→
https://seclists.org/bugtraq/2019/Sep/3Mailing List · Third Party Advisory
→
https://security.gentoo.org/glsa/202003-66Third Party Advisory
→
https://usn.ubuntu.com/4191-1/Third Party Advisory
→
https://usn.ubuntu.com/4191-2/Third Party Advisory
Quick Facts
CVE IDCVE-2019-13164
CVSS Score7.8 / 10
SeverityHIGH
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected4 vendor(s)
PublishedJul 3, 2019
Related CVEs (NVD-CWE-noinfo)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-13164 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.