CVE-2017-12803

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

2.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 81.6% 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:3.0/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

2017-11-09 19:00Z8 YR AGO

Last updated

2024-08-05 18:51Z2 YR AGO

Reserved

2017-08-11

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.1

Document digest

efff21a0969628c59ccf5aa6b03a89cbc57bd0a202b1bd0c159c559947797d9d

• packetstormsecurity.comhttp://packetstormsecurity.com/files/144902/mkvalidator-0.5.1-Denial-Of-Service.htmlx_refsource_MISC
• seclists.org20171106 mkvalidator libebml2 mkclean multiple vulnerabilitieshttp://seclists.org/fulldisclosure/2017/Nov/19mailing-listx_refsource_FULLDISC
• github.comhttps://github.com/Matroska-Org/foundation-source/issues/24x_refsource_CONFIRM