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CVE-2021-3510

HIGHCVSS 7.5/10EPSS 0.93%

Last modified

CVE-2021-3510 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Zephyr JSON decoder incorrectly decodes array of array. Zephyr versions >= >1.14.0, >= >2.5.0 contain Attempt to Access Child of a Non-structure Pointer (CWE-588). EPSS estimates a 0.93% chance of exploitation in the next 30 days.

Description

Zephyr JSON decoder incorrectly decodes array of array. Zephyr versions >= >1.14.0, >= >2.5.0 contain Attempt to Access Child of a Non-structure Pointer (CWE-588). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-289f-7mw3-2qf4

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
0.93%

56.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
ZephyrprojectZephyr1.14.0—
ZephyrprojectZephyr1.14.1—
ZephyrprojectZephyr1.14.2—
ZephyrprojectZephyr1.14.3Rc1
ZephyrprojectZephyr2.5.0—
ZephyrprojectZephyr2.5.1Rc1
ZephyrprojectZephyr2.6.0—
ZephyrprojectZephyr2.6.1Rc1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-3510?
Zephyr JSON decoder incorrectly decodes array of array. Zephyr versions >= >1.14.0, >= >2.5.0 contain Attempt to Access Child of a Non-structure Pointer (CWE-588). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-289f-7mw3-2qf4
How severe is CVE-2021-3510?
CVE-2021-3510 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.93% probability of exploitation in the next 30 days.
How do I fix CVE-2021-3510?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-3510?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST