CVE-2021-21371

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

0.45% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 37.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2021-03-10 21:50Z5 YR AGO

Last updated

2024-08-03 18:09Z2 YR AGO

Reserved

2020-12-22

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.0)

CNA CVSS vector

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

Weaknesses

• CWE-502Deserialization of Untrusted DataBase

Data version

5.1

Document digest

22fd0ab394c939ea704798f119470a64684bb75bbbd51ab722bf9cc1f4e082d0

• github.comhttps://github.com/tenable/integration-jira-cloud/security/advisories/GHSA-8278-88vv-x98rx_refsource_CONFIRM
• github.comhttps://github.com/tenable/integration-jira-cloud/commit/f8c2095fd529e664e7fa25403a0a4a85bb3907d0x_refsource_MISC
• pypi.orghttps://pypi.org/project/tenable-jira-cloud/x_refsource_MISC
• pyyaml.docsforge.comhttps://pyyaml.docsforge.com/master/documentation/#loading-yamlx_refsource_MISC