Zephyr · Zephyr · CVE-2021-3323
**Name of the Vulnerable Software and Affected Versions**
Zephyr versions 2.4.0 and later
**Description**
The issue is related to an integer underflow in the 6LoWPAN IPHC header uncompression in Zephyr, which contains an integer underflow (wrap or wraparound) as classified by CWE-191.
**Recommendations**
For Zephyr versions 2.4.0 and later, at the moment, there is no information about a newer version that contains a fix for this vulnerability.