CVE-2020-17528

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

3.17% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 87.6% of scored records. A rank, not a probability.

NVD base score

9.1 (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:N/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

2020-12-09 16:35Z5 YR AGO

Last updated

2025-02-13 16:27Z1 YR AGO

Reserved

2020-08-12

Assigning CNA

apache

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

04ae4a1225ed8dedb863dfc48d9b8b8243f3f39691251d2f9cc47eec2bbad626

• lists.apache.orghttps://lists.apache.org/thread.html/r7f4215aba288660b41b7e731b6262c8275fa476e91e527a74d2888ea%40%3Cdev.nuttx.apache.org%3Ex_refsource_MISC
• www.openwall.com[oss-security] 20201209 CVE-2020-17528: Apache NuttX (incubating) Out of Bound Write from invalid TCP Urgent lengthhttp://www.openwall.com/lists/oss-security/2020/12/09/4mailing-listx_refsource_MLIST