CVE-2020-26521

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

2.15% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 81.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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

2020-11-06 07:35Z5 YR AGO

Last updated

2024-08-04 15:56Z2 YR AGO

Reserved

2020-10-02

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

09e4d20c19dbce06977c4fea03fd5dcb1ddc9a5e90608d4c0862c3c34286ef42

• github.comhttps://github.com/nats-io/nats-server/commits/masterx_refsource_MISC
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2020/11/02/2x_refsource_CONFIRM
• lists.fedoraproject.orgFEDORA-2020-2c8851d48bhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VT67XCLIIBYRT762SVFBYFFTQFVSM3SI/vendor-advisoryx_refsource_FEDORA