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CVE-2015-9541

20
FAUCET Score

CVE-2015-9541 describes an exponential XML entity expansion vulnerability in Qt through version 5.14, specifically within the QXmlStreamReader when processing crafted SVG documents. This vulnerability, similar to CVE-2003-1564, primarily impacts Fedora and Qt products. It carries a CVSS v3.1 score of 7.5 (High), indicating a network-exploitable flaw with low attack complexity that could lead to high availability impact. There is currently no evidence of active exploitation, public exploit code (e.g., Metasploit, ExploitDB, Nuclei), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.5.0, < 5.12.8CPE matchmatch criteria
cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*
31CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
32CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.49%
Probability of exploitation in next 30 days
EPSS Percentile
83.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0249 is in the 70th percentile among its peer group of 51,553 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (12)

microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 5.12.11-3
microsoftpatch availablevia msrc
Product: 16857-16823Fixed in: 5.12.11-3
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 x64Fixed in: 5.12.11-2
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 ARMFixed in: 5.12.11-2
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 5.12.11-3
microsoftpatch availablevia msrc
Product: 16856-16820Fixed in: 5.12.11-2
microsoftpatch availablevia msrc
Product: cm1 qt5-qtbase 5.12.11-2 on CBL Mariner 1.0Fixed in: 5.12.11-2
microsoftpatch availablevia msrc
Product: cbl2 qt5-qtsvg 5.12.11-3 on CBL Mariner 2.0Fixed in: 5.12.11-3
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: qt5-qtbase-0:5.12.5-6.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: qt5-qttools-0:5.12.5-2.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: qt5-qtwebsockets-0:5.12.5-2.el8
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: qt

Vendor Advisories (3)

microsoft2021-Jul/CVE-2015-9541

CVE-2015-9541

Jul 13, 2021
microsoft2020-Jan/CVE-2015-9541Important

Qt through 5.14 allows an exponential XML entity expansion attack via a crafted SVG document that is mishandled in QXmlStreamReader a related issue to CVE-2003-1564.

Jan 14, 2020
redhatCVE-2015-9541Moderate

qt: XML entity expansion vulnerability

Jul 24, 2015

References

bugreports.qt.io / browse/QTBUG-47417
Vendor Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/2PT6327C64Q4RBFRWUSBKCG7SVGBWU5W
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/EZMMF4OEJAZRVKVXNO7IZWLEZVQGJN6G