HOMEVULNERABILITIESCVE-2020-13754
MEDIUM

CVE-2020-13754

CWE-119Published: June 2, 2020· Updated: Jun 17, 2026

6.7
CVSS v3.1

Official Description

hw/pci/msix.c in QEMU 4.2.0 allows guest OS users to trigger an out-of-bounds access via a crafted address in an msi-x mmio operation.

NVD Source

Technical Analysis

CVE-2020-13754 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires high 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 6.7.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Canonical1 product(s)
ubuntu linux
Debian1 product(s)
debian linux
qemu1 product(s)
qemu
Source: NVD CPE · 6 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (16)

http://www.openwall.com/lists/oss-security/2020/06/01/6Mailing List · Patch · Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/06/15/8Mailing List · Patch · Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2020-06/msg00004.htmlIssue Tracking · Patch · Third Party Advisory
https://usn.ubuntu.com/4467-1/Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/06/01/6Mailing List · Patch · Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/06/15/8Mailing List · Patch · Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2020-06/msg00004.htmlIssue Tracking · Patch · Third Party Advisory
https://usn.ubuntu.com/4467-1/Third Party Advisory

Quick Facts

CVE IDCVE-2020-13754
CVSS Score6.7 / 10
SeverityMEDIUM
WeaknessCWE-119
CISA KEVNo
Affected3 vendor(s)
PublishedJun 2, 2020

Related CVEs (CWE-119)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2020-13754 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.