What’s Vulnerable › Vulnerabilities

CVE-2022-1841: Out-of-bound write in tcp_flags

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-08-31 · updated 2026-06-17
• Weakness: CWE-787

Description

In subsys/net/ip/tcp.c , function tcp_flags , when the incoming parameter flags is ECN or CWR , the buf will out-of-bounds write a byte zero.

Affected products

• zephyrproject zephyr: through 3.0.0

References

• http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-5c3j-p8cr-2pgh
• http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-5c3j-p8cr-2pgh

Get alerted when CVE-2022-1841 or the next vulnerability affects your stack