CVE-2018-5146

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

11.90% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 95.9% 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

Critical. 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

2018-06-11 21:00Z8 YR AGO

Last updated

2024-08-05 05:26Z2 YR AGO

Reserved

2018-01-03

Assigning CNA

mozilla

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-787Out-of-bounds WriteBase
• CWE-122Heap-based Buffer OverflowVariant

Data version

5.1

Document digest

bb825895492333f4c73cf191c43bf3f61a81bcbe9fbee49788552b99c900beea

• access.redhat.comRHSA-2018:0549https://access.redhat.com/errata/RHSA-2018:0549vendor-advisoryx_refsource_REDHAT
• usn.ubuntu.comUSN-3604-1https://usn.ubuntu.com/3604-1/vendor-advisoryx_refsource_UBUNTU
• www.debian.orgDSA-4143https://www.debian.org/security/2018/dsa-4143vendor-advisoryx_refsource_DEBIAN
• security.gentoo.orgGLSA-201811-13https://security.gentoo.org/glsa/201811-13vendor-advisoryx_refsource_GENTOO
• lists.debian.org[debian-lts-announce] 20180326 [SECURITY] [DLA 1319-1] firefox-esr security updatehttps://lists.debian.org/debian-lts-announce/2018/03/msg00022.htmlmailing-listx_refsource_MLIST
• usn.ubuntu.comUSN-3545-1https://usn.ubuntu.com/3545-1/vendor-advisoryx_refsource_UBUNTU
• usn.ubuntu.comUSN-3599-1https://usn.ubuntu.com/3599-1/vendor-advisoryx_refsource_UBUNTU
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2018-09/x_refsource_CONFIRM
• lists.debian.org[debian-lts-announce] 20180329 [SECURITY] [DLA 1327-1] thunderbird security updatehttps://lists.debian.org/debian-lts-announce/2018/03/msg00029.htmlmailing-listx_refsource_MLIST
• www.debian.orgDSA-4155https://www.debian.org/security/2018/dsa-4155vendor-advisoryx_refsource_DEBIAN
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2018-08/x_refsource_CONFIRM
• access.redhat.comRHSA-2018:0648https://access.redhat.com/errata/RHSA-2018:0648vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2018:0647https://access.redhat.com/errata/RHSA-2018:0647vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2018:1058https://access.redhat.com/errata/RHSA-2018:1058vendor-advisoryx_refsource_REDHAT
• www.securitytracker.com1040544http://www.securitytracker.com/id/1040544vdb-entryx_refsource_SECTRACK
• bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1446062x_refsource_CONFIRM
• www.securityfocus.com103432http://www.securityfocus.com/bid/103432vdb-entryx_refsource_BID
• www.debian.orgDSA-4140https://www.debian.org/security/2018/dsa-4140vendor-advisoryx_refsource_DEBIAN
• lists.debian.org[debian-lts-announce] 20180430 [SECURITY] [DLA 1368-1] libvorbis security updatehttps://lists.debian.org/debian-lts-announce/2018/04/msg00033.htmlmailing-listx_refsource_MLIST
• access.redhat.comRHSA-2018:0649https://access.redhat.com/errata/RHSA-2018:0649vendor-advisoryx_refsource_REDHAT