CVE-2020-12439

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

1.55% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 72.9% of scored records. A rank, not a probability.

NVD base score

5.3 (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:L

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

2020-05-05 21:19Z6 YR AGO

Last updated

2024-08-04 11:56Z2 YR AGO

Reserved

2020-04-28

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-404Improper Resource Shutdown or ReleaseClass

Data version

5.1

Document digest

07339b8ee570e4e00089091463d28ab46b6f7db9507b382b2a249c54aa7ad801

• github.comhttps://github.com/mimblewimble/grin/pull/3236x_refsource_CONFIRM
• github.comhttps://github.com/mimblewimble/grin-security/blob/master/CVEs/CVE-2020-12439.mdx_refsource_CONFIRM
• github.comhttps://github.com/mimblewimble/grin/issues/3235x_refsource_CONFIRM