CVE-2020-15889

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

2.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 81.2% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Important. 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

2020-07-21 21:35Z6 YR AGO

Last updated

2024-08-04 13:30Z2 YR AGO

Reserved

2020-07-21

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
• CWE-122Heap-based Buffer OverflowVariant

Data version

5.1

Document digest

8f1a96ff9a91c5657d5cfc5aed4df81f8146dd86c181614dc0a7fd1d7659c545

• lua-users.orghttp://lua-users.org/lists/lua-l/2020-07/msg00078.htmlx_refsource_MISC
• github.comhttps://github.com/lua/lua/commit/127e7a6c8942b362aa3c6627f44d660a4fb75312x_refsource_MISC
• lua-users.orghttp://lua-users.org/lists/lua-l/2020-12/msg00157.htmlx_refsource_MISC