CVE-2020-36400

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

1.84% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 77.1% 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

2021-07-01 02:50Z5 YR AGO

Last updated

2024-08-04 17:23Z2 YR AGO

Reserved

2021-07-01

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

Data version

5.1

Document digest

dab6275e64b745bf8537ff8f63697c7e013f629d8e905de4c1a0b1a9fe0e361e

• bugs.chromium.orghttps://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26042x_refsource_MISC
• github.comhttps://github.com/google/oss-fuzz-vulns/blob/main/vulns/libzmq/OSV-2020-1887.yamlx_refsource_MISC
• github.comhttps://github.com/zeromq/libzmq/commit/397ac80850bf8d010fae23dd215db0ee2c677306x_refsource_MISC