CVE-2020-10067Integer Overflow In is_in_region Allows User Thread To Access Kernel Memory
- 7.5HighCVSS base score
- 0.45%Exploitation in 30 daysEPSS · top 61% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A malicious userspace application can cause a integer overflow and bypass security checks performed by system call handlers. The impact would depend on the underlying system call and can range from denial of service to information leak to memory corruption resulting in code execution within the kernel. See NCC-ZEP-005 This issue affects: zephyrproject-rtos zephyr version 1.14.1 and later versions. version 2.1.0 and later versions.
Timeline
ID reserved
By zephyr
- 2 months later
· 2 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 |
|---|---|---|---|
| zephyrCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.45% · top 61% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
- affected 1.14.1 – < unspecified
- affected 2.1.0 – < unspecified
References
References5
- https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-27 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/zephyrproject-rtos/zephyr/pull/23239 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/zephyrproject-rtos/zephyr/pull/23653 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/zephyrproject-rtos/zephyr/pull/23654 (opens in a new tab)x_refsource_MISCx_transferred
- https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10067 (opens in a new tab)x_refsource_MISCx_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)
- EUVD EUVD-2020-2532 (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://cveledger.app/cve/CVE-2020-10067)Record last updated .