CVE-2021-31684

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

2.30% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 81.8% 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

Moderate. 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

2021-06-01 00:00Z5 YR AGO

Last updated

2024-08-03 23:03Z2 YR AGO

Reserved

2021-04-23

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

cb46c935cc773bd19aa55664956e08f8455c272972e1d6ab3fe6968d9dddff2d

• github.comhttps://github.com/netplex/json-smart-v1/issues/10
• github.comhttps://github.com/netplex/json-smart-v1/pull/11
• github.comhttps://github.com/netplex/json-smart-v2/issues/67
• github.comhttps://github.com/netplex/json-smart-v2/pull/68
• www.oracle.comhttps://www.oracle.com/security-alerts/cpujan2022.html
• www.oracle.comhttps://www.oracle.com/security-alerts/cpujul2022.html
• lists.debian.org[debian-lts-announce] 20230331 [SECURITY] [DLA 3373-1] json-smart security updatehttps://lists.debian.org/debian-lts-announce/2023/03/msg00030.htmlmailing-list
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20240621-0006/