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CVE-2013-4549
QXmlSimpleReader in Qt before 5.2 allows context-dependent attackers to cause a denial of service (memory consumption) via an XML Entity…
- 5.0MediumCVSS base score
- 3.0%Exploitation in 30 daysEPSS · top 12% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
QXmlSimpleReader in Qt before 5.2 allows context-dependent attackers to cause a denial of service (memory consumption) via an XML Entity Expansion (XEE) attack.
Timeline
ID reserved
By redhat
- 6 months later
· 6 months later
Published
- 11 years later
· 11 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 3.0% · top 12% of all CVEs (10 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Affected products
n/a
- affected n/a
References
13
- [qt-announce] 20131205 [Announce] Qt Project Security Advisory: XML Entity Expansion Denial of Service (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 56166 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- openSUSE-SU-2014:0173 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 56008 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- openSUSE-SU-2014:0125 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://codereview.qt-project.org/#change%2C71010 (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2014:0176 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2014:0067 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://blog.qt.digia.com/blog/2014/04/24/qt-4-8-6-released/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-2057-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://codereview.qt-project.org/#change%2C71368 (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2014:0070 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FEDORA-2014-5695 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2013-4408 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2013-4549)Record last updated .