CVE-2018-15518

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

2.50% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 83.6% of scored records. A rank, not a probability.

NVD base score

8.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2018-12-26 20:00Z7 YR AGO

Last updated

2024-08-05 09:54Z2 YR AGO

Reserved

2018-08-18

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-415Double FreeVariant
• CWE-416Use After FreeVariant

Data version

5.1

Document digest

b61a3330dee472206c8bd93e012412e6e25bcf6fac97d7e895fb1bdab119b99b

• www.debian.orgDSA-4374https://www.debian.org/security/2019/dsa-4374vendor-advisoryx_refsource_DEBIAN
• codereview.qt-project.orghttps://codereview.qt-project.org/#/c/236691/x_refsource_CONFIRM
• lists.opensuse.orgopenSUSE-SU-2018:4261http://lists.opensuse.org/opensuse-security-announce/2018-12/msg00066.htmlvendor-advisoryx_refsource_SUSE
• lists.debian.org[debian-lts-announce] 20190103 [SECURITY] [DLA 1627-1] qtbase-opensource-src security updatehttps://lists.debian.org/debian-lts-announce/2019/01/msg00004.htmlmailing-listx_refsource_MLIST
• blog.qt.iohttps://blog.qt.io/blog/2018/12/04/qt-5-11-3-released-important-security-updates/x_refsource_CONFIRM
• lists.debian.org[debian-lts-announce] 20190514 [SECURITY] [DLA 1786-1] qt4-x11 security updatehttps://lists.debian.org/debian-lts-announce/2019/05/msg00014.htmlmailing-listx_refsource_MLIST
• usn.ubuntu.comUSN-4003-1https://usn.ubuntu.com/4003-1/vendor-advisoryx_refsource_UBUNTU
• access.redhat.comRHSA-2019:2135https://access.redhat.com/errata/RHSA-2019:2135vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2019:3390https://access.redhat.com/errata/RHSA-2019:3390vendor-advisoryx_refsource_REDHAT
• lists.opensuse.orgopenSUSE-SU-2020:1452http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00057.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2020:1500http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00071.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2020:1501http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00073.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2020:1530http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00090.htmlvendor-advisoryx_refsource_SUSE
• lists.debian.org[debian-lts-announce] 20200928 [SECURITY] [DLA 2377-1] qt4-x11 security updatehttps://lists.debian.org/debian-lts-announce/2020/09/msg00023.htmlmailing-listx_refsource_MLIST