CVE-2018-15518

28

FAUCET Score

CVE-2018-15518 describes a double-free or corruption vulnerability in QXmlStream within Qt 5.x versions prior to 5.11.3, affecting various Debian and openSUSE distributions utilizing Qt. This high-severity vulnerability, rated 8.8 CVSSv3, can be triggered remotely with low complexity by a user opening a specially crafted malicious XML document, potentially leading to high impact on confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		>= 5.5.0, < 5.11.3CPE matchmatch criteria	cpe:2.3:a:qt:qt::::::::
		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:::::::*
		42.3CPE matchmatch criteria	cpe:2.3:o:opensuse:leap:42.3:::::::*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

Exploitability Score

2.8

Impact Score

5.9

CvssVersion

3.0

Exploit Intelligence

EPSS Score

2.50%

Probability of exploitation in next 30 days

EPSS Percentile

83.0%

Percentile rank of EPSS score among Peer Group

As of 2026-07-24

Model: v2026.06.15

This CVE's current EPSS score of 0.0250 is in the 82nd percentile among its peer group of 14,825 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 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (28)

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8Fixed in: qt5-qttools-0:5.11.1-9.el8

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qt3d-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtbase-0:5.9.7-2.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtcanvas3d-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtconnectivity-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtdeclarative-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtdoc-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtgraphicaleffects-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtimageformats-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtlocation-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtmultimedia-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtquickcontrols-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtquickcontrols2-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtscript-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtsensors-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtserialbus-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtserialport-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtsvg-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qttools-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qttranslations-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtwayland-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtwebchannel-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtwebsockets-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtx11extras-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt5-qtxmlpatterns-0:5.9.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: qt-1:4.8.7-8.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8Fixed in: qt5-qtbase-0:5.11.1-7.el8

susepatch availablevia nvd_reference

Vendor Advisories (1)

redhatCVE-2018-15518Moderate

qt5-qtbase: Double free in QXmlStreamReader

References

lists.opensuse.org / opensuse-security-announce/2018-12/msg00066.html

PatchThird Party Advisory

lists.opensuse.org / opensuse-security-announce/2020-09/msg00057.html

lists.opensuse.org / opensuse-security-announce/2020-09/msg00071.html

lists.opensuse.org / opensuse-security-announce/2020-09/msg00073.html

lists.opensuse.org / opensuse-security-announce/2020-09/msg00090.html

access.redhat.com / errata/RHSA-2019:2135

access.redhat.com / errata/RHSA-2019:3390

blog.qt.io / blog/2018/12/04/qt-5-11-3-released-important-security-updates

Third Party Advisory

codereview.qt-project.org

PatchThird Party Advisory

lists.debian.org / debian-lts-announce/2019/01/msg00004.html

Third Party Advisory

lists.debian.org / debian-lts-announce/2019/05/msg00014.html

lists.debian.org / debian-lts-announce/2020/09/msg00023.html

usn.ubuntu.com / 4003-1

debian.org / security/2019/dsa-4374

Third Party Advisory