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Fencer Intel
medium 6.8

CVE-2015-1859 json

Multiple buffer overflows in plugins/imageformats/ico/qicohandler.cpp in the QtBase module in Qt before 4.8.7 and 5.x before 5.4.2 allow re…

published 2015-05-12 11 y ago modified 2026-06-17 4 mo ago also EUVD-2015-1967

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.5%
EPSS 6.5% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

Multiple buffer overflows in plugins/imageformats/ico/qicohandler.cpp in the QtBase module in Qt before 4.8.7 and 5.x before 5.4.2 allow remote attackers to cause a denial of service (segmentation fault and crash) and possibly execute arbitrary code via a crafted ICO image.

Patch / fix

  • qtbase-opensource-src Debian 14, Debian 13, Debian 12 5.3.2+dfsg-5

debian advisories DEBIAN-CVE-2015-1859

  • qt4-x11 Ubuntu 14.04 LTS 4:4.8.5+git192-g085f851+dfsg-2ubuntu4.1
  • qtbase-opensource-src Ubuntu 14.04 LTS 5.2.1+dfsg-1ubuntu14.3

ubuntu advisories UBUNTU-CVE-2015-1859

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libqt5-qtbase SLES for SAP 12, SLES 12, SLED 12 +1 more 5.3.1-4.4.2
  • libqt4 SLES for SAP 12, SLES 12, SLED 12 +2 more 4.8.6-4.2
  • libqt4-sql-plugins SLES for SAP 12, SLES 12, SLED 12 +2 more 4.8.6-4.1

suse advisories SUSE-SU-2015:1383-1SUSE-SU-2015:1359-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-1859 updated cvss 5.1

qt: segmentation fault in qicohandler.cpp

  • Red Hat Enterprise Linux 5 qt4 Red Hat Enterprise Linux 6 qt, qt-x11, qt-odbc, qt-demos, qt-mysql, qt-sqlite, +3 more Red Hat Enterprise Linux 7 qt, qt-x11, qt-odbc, qt-qvfb, qt-demos, qt-mysql, +6 more
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 5 qt Red Hat Enterprise Linux 6 qt3, qt3-ODBC, qt3-MySQL, qt3-config, qt3-sqlite, qt3-designer, +1 more Red Hat Enterprise Linux 7 qt3, qt3-ODBC, qt3-MySQL, qt3-config, qt3-designer, qt3-PostgreSQL
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

6.54% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.