CVE-2018-12387

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

9.59% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 95.2% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2018-10-18 13:00Z8 YR AGO

Last updated

2024-08-05 08:30Z2 YR AGO

Reserved

2018-06-14

Assigning CNA

mozilla

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-20Improper Input ValidationClass
• CWE-125Out-of-bounds ReadBase

Data version

5.1

Document digest

34dccf0453fb3c35ea4182ac93b6f0d983b8dfbde46547a3a325f5ebdeb86749

• security.gentoo.orgGLSA-201810-01https://security.gentoo.org/glsa/201810-01vendor-advisoryx_refsource_GENTOO
• www.securityfocus.com105460http://www.securityfocus.com/bid/105460vdb-entryx_refsource_BID
• usn.ubuntu.comUSN-3778-1https://usn.ubuntu.com/3778-1/vendor-advisoryx_refsource_UBUNTU
• bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1493903x_refsource_CONFIRM
• www.debian.orgDSA-4310https://www.debian.org/security/2018/dsa-4310vendor-advisoryx_refsource_DEBIAN
• access.redhat.comRHSA-2018:2884https://access.redhat.com/errata/RHSA-2018:2884vendor-advisoryx_refsource_REDHAT
• www.securitytracker.com1041770http://www.securitytracker.com/id/1041770vdb-entryx_refsource_SECTRACK
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2018-24/x_refsource_CONFIRM
• access.redhat.comRHSA-2018:2881https://access.redhat.com/errata/RHSA-2018:2881vendor-advisoryx_refsource_REDHAT