CVE-2021-23509

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

1.82% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 78.7% 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

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

2021-11-03 17:20Z4 YR AGO

Last updated

2024-09-16 20:32Z2 YR AGO

Reserved

2021-01-08

Assigning CNA

snyk

Record state

PUBLISHED

Severity

Medium (CVSS 5.6)

CNA CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

Weaknesses

• CWE-843Access of Resource Using Incompatible Type ('Type Confusion')Base

Data version

5.1

Document digest

e7063c6000010bb88cf78fdee40a9029879b9791fc132608f54a6694663ecc20

• snyk.iohttps://snyk.io/vuln/SNYK-JS-JSONPTR-1577291x_refsource_MISC
• snyk.iohttps://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1767165x_refsource_MISC
• github.comhttps://github.com/flitbit/json-ptr/pull/42x_refsource_MISC
• github.comhttps://github.com/flitbit/json-ptr/commit/5dc458fbad1c382a2e3ca6d62e66ede3d92849cax_refsource_MISC
• github.comhttps://github.com/flitbit/json-ptr%23security-vulnerabilities-resolvedx_refsource_MISC