CVE-2018-6621

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

2.16% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 82.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

NVD analysis status

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

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2018-02-05 04:00Z8 YR AGO

Last updated

2024-08-05 06:10Z2 YR AGO

Reserved

2018-02-04

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.1

Document digest

e30e45f9dc794c8f2e83e67c656ef92c3297633ccef18e0abac5e7217083b241

• www.securityfocus.com102950http://www.securityfocus.com/bid/102950vdb-entryx_refsource_BID
• git.ffmpeg.orghttps://git.ffmpeg.org/gitweb/ffmpeg.git/commit/118e1b0b3370dd1c0da442901b486689efd1654bx_refsource_CONFIRM
• www.debian.orgDSA-4249https://www.debian.org/security/2018/dsa-4249vendor-advisoryx_refsource_DEBIAN
• lists.debian.org[debian-lts-announce] 20190107 [SECURITY] [DLA 1630-1] libav security updatehttps://lists.debian.org/debian-lts-announce/2019/01/msg00006.htmlmailing-listx_refsource_MLIST
• github.comhttps://github.com/FFmpeg/FFmpeg/commit/22aa37c0fedf14531783189a197542a055959b6cx_refsource_CONFIRM