CVE-2020-17528
Apache NuttX (incubating) Out of Bound Write from invalid TCP Urgent length
- Published
- Updated
- Reserved
- Assigned by
- apache
Description
Out-of-bounds Write vulnerability in TCP stack of Apache NuttX (incubating) versions up to and including 9.1.0 and 10.0.0 allows attacker to corrupt memory by supplying arbitrary urgent data pointer offsets within TCP packets including beyond the length of the packet.
Timeline
ID reserved
By apache
- 4 months later
· 4 months later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
- EPSS (exploitation in 30 days)
- 3.2% · top 12% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.1.
Weakness
Affected products
Apache Software Foundation · Apache NuttX (incubating)
- affected unspecified – < 9.1.1
- affected 10.0.0
References (2)
- https://lists.apache.org/thread.html/r7f4215aba288660b41b7e731b6262c8275fa476e91e527a74d2888ea%40%3Cdev.nuttx.apache.org%3E (opens in a new tab)x_refsource_MISCmailing-listx_refsource_MLISTx_transferred
- [oss-security] 20201209 CVE-2020-17528: Apache NuttX (incubating) Out of Bound Write from invalid TCP Urgent length (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-17528)Record last updated .