CVE-2020-25221

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

0.66% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 51.7% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

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

2020-09-10 13:39Z6 YR AGO

Last updated

2024-08-04 15:33Z2 YR AGO

Reserved

2020-09-10

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-672Operation on a Resource after Expiration or ReleaseClass
• CWE-190Integer Overflow or WraparoundBase

Data version

5.1

Document digest

4ef8d40a9c39618bb0402b770e72884eae2f2e2a8214f861c68c55b2103f6af6

• www.openwall.comhttps://www.openwall.com/lists/oss-security/2020/09/08/4x_refsource_MISC
• git.kernel.orghttps://git.kernel.org/linus/9fa2dd946743ae6f30dc4830da19147bf100a7f2x_refsource_MISC
• git.kernel.orghttps://git.kernel.org/linus/8891adc61dce2a8a41fc0c23262b681c3ec4b73ax_refsource_MISC
• cdn.kernel.orghttps://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.7x_refsource_MISC
• www.openwall.com[oss-security] 20200910 Re: CVE Request: Linux kernel vsyscall page refcounting errorhttp://www.openwall.com/lists/oss-security/2020/09/10/4mailing-listx_refsource_MLIST
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20201001-0003/x_refsource_CONFIRM