Buffer overflow in Rt-Thread
CVE-2026-14607
A weakness has been identified in RT-Thread up to 5.0.2. This affects the function sys_getaddrinfo of the file components/lwp/lwp_syscall.c. Executing a manipulation of the argument ai_addr can lead to memory corruption. The attack can only be executed locally. The exploit has been made available to the public and could be used for attacks. The pull request to fix this issue awaits acceptance.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (5.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Rt-Thread — versions 5.0.0, 5.0.1, 5.0.2
Weakness classification (CWE)
References
- vuldb.com/vuln/376115 (technical-description, vdb-entry)
- vuldb.com/vuln/376115/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-14607 (third-party-advisory)
- vuldb.com/submit/844622 (third-party-advisory)
- github.com/RT-Thread/rt-thread/issues/11428 (issue-tracking, exploit)
- github.com/RT-Thread/rt-thread/pull/11454 (issue-tracking, patch)
- github.com/RT-Thread/rt-thread/ (product)
Frequently asked questions
- What is CVE-2026-14607?
- CVE-2026-14607 is a medium-severity vulnerability in Rt-Thread, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2026-07-03.
- How severe is CVE-2026-14607?
- Medium severity. CVSS v3 base score is 5.5 out of 10.