CVE-2020-19143

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

1.45% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 73.2% 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

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

2021-09-09 14:25Z5 YR AGO

Last updated

2024-08-04 14:08Z2 YR AGO

Reserved

2020-08-13

Assigning CNA

mitre

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-119Improper Restriction of Operations within the Bounds of a Memory BufferClass

Data version

5.1

Document digest

17f9e99b7d979852ebca6817553688a48edb460b2a34564ab330a168a78efded

• bugzilla.maptools.orghttp://bugzilla.maptools.org/show_bug.cgi?id=2851x_refsource_MISC
• gitlab.comhttps://gitlab.com/libtiff/libtiff/-/issues/158x_refsource_MISC
• gitlab.comhttps://gitlab.com/libtiff/libtiff/-/merge_requests/119x_refsource_MISC
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20211004-0005/x_refsource_CONFIRM
• www.debian.orgDSA-4997https://www.debian.org/security/2021/dsa-4997vendor-advisoryx_refsource_DEBIAN