CVE-2026-7424
- Source
- https://cve.org/CVERecord?id=CVE-2026-7424
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-7424.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-7424
- Aliases
-
- GHSA-wrhm-c99p-2p8g
- Published
- 2026-04-29T18:51:28Z
- Modified
- 2026-10-28T02:30:21Z
- Severity
-
- 7.2 (High) CVSS_V4 - CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Integer Underflow in DHCPv6 Sub-Option Parser in FreeRTOS-Plus-TCP
- Details
-
Integer underflow in the DHCPv6 sub-option parser in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adjacent network actor to corrupt the device's IPv6 address assignment, DNS configuration, and lease times, and to cause a denial of service (permanent IP task freeze requiring hardware reset) by sending a single crafted DHCPv6 packet.
The issue is present whenever DHCPv6 is enabled.
To mitigate this issue, users should upgrade to version V4.2.6 or V4.4.1 or newer.
- Database specific
{ "cna_assigner": "AMZN", "cwe_ids": [ "CWE-191" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/7xxx/CVE-2026-7424.json" }- References
-
- https://aws.amazon.com/security/security-bulletins/2026-022-aws/
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/7xxx/CVE-2026-7424.json
- https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-wrhm-c99p-2p8g
- https://nvd.nist.gov/vuln/detail/CVE-2026-7424
- https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.2.6
- https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.4.1
- https://github.com/FreeRTOS/FreeRTOS-Plus-TCP
Affected packages
Git / github.com/freertos/freertos-plus-tcp
Affected ranges
- Type
- GIT
- Repo
- https://github.com/freertos/freertos-plus-tcp
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:amazon:freertos-plus-tcp:*:*:*:*:*:*:*:*", "range": [ { "introduced": "4.0.0" }, { "fixed": "4.2.6" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:amazon:freertos-plus-tcp:*:*:*:*:*:*:*:*", "range": [ { "introduced": "4.3.0" }, { "fixed": "4.4.1" } ], "source": "CPE_RANGE" }, { "original_tag": "V4.2.6", "range": [ { "fixed": "5986530664073a609e634bde63dd9bff37e725f0" } ], "source": "REFERENCES_TAG" }, { "original_tag": "V4.4.1", "range": [ { "fixed": "c12361095aca68aeed858f45d14395fbffa92c0d" } ], "source": "REFERENCES_TAG" } ] }