CVE-2026-7424 Integer Underflow in DHCPv6 Sub-Option Parser in FreeRTOS-Plus-TCP

🗓️ 29 Apr 2026 18:51:28Reported by GoogleType

osv🔗 osv.dev👁 2 Views

Integer underflow in DHCPv6 parser corrupts IPv6, DNS, and leases, causing denial of service; fix in FreeRTOS Plus TCP versions four two six and four four one.

Reporter	Title	Published	Views	Family All 9
Circl	CVE-2026-7424	29 Apr 202623:02	–	circl
CNNVD	FreeRTOS-Plus-TCP 数字错误漏洞	29 Apr 202600:00	–	cnnvd
CVE	CVE-2026-7424	29 Apr 202618:51	–	cve
Cvelist	CVE-2026-7424 Integer Underflow in DHCPv6 Sub-Option Parser in FreeRTOS-Plus-TCP	29 Apr 202618:51	–	cvelist
EUVD	EUVD-2026-26277	29 Apr 202618:51	–	euvd
NVD	CVE-2026-7424	29 Apr 202619:16	–	nvd
Positive Technologies	PT-2026-35975	29 Apr 202600:00	–	ptsecurity
RedhatCVE	CVE-2026-7424	5 Jun 202619:22	–	redhatcve
Vulnrichment	CVE-2026-7424 Integer Underflow in DHCPv6 Sub-Option Parser in FreeRTOS-Plus-TCP	29 Apr 202618:51	–	vulnrichment

Source	Link
aws	www.aws.amazon.com/security/security-bulletins/2026-022-aws/
github	www.github.com/CVEProject/cvelistV5/tree/main/cves/2026/7xxx/CVE-2026-7424.json
github	www.github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-wrhm-c99p-2p8g
nvd	www.nvd.nist.gov/vuln/detail/CVE-2026-7424
github	www.github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.2.6
github	www.github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.4.1
github	www.github.com/FreeRTOS/FreeRTOS-Plus-TCP

08 Jul 2026 08:13Current

6Medium risk

Vulners AI Score6

CVSS 47.2

EPSS0.00223