Apache NuttX (incubating) Out of Bound Write from invalid fragmentation offset value specified in the IP header
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
Out-of-bounds Write vulnerability in TCP Stack of Apache NuttX (incubating) versions up to and including 9.1.0 and 10.0.0 allows attacker to corrupt memory by supplying and invalid fragmentation offset value specified in the IP header. This is only impacts builds with both CONFIG_EXPERIMENTAL and CONFIG_NET_TCP_REASSEMBLY build flags enabled.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apache | Apache NuttX (incubating) | up to 9.1.0; 10.0.0 | — | No fix listed | CNA |
- Apache NuttX (incubating) VendorApache Affected up to 9.1.0; 10.0.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-17529
- 2026-10-03 Alias added: GHSA-5jrc-q622-h2ww
References
More Apache Nuttx vulnerabilities
- TI-2025-24548 Apache NuttX RTOS: NuttX Bluetooth Stack HCI and UART DoS/RCE Vulnerabilities. CVSS 3.1CRITICAL 9.8
- TI-2025-30293 Apache NuttX RTOS: examples/xmlrpc: Fix calls buffers size. CVSS 3.1CRITICAL 9.8
- TI-2025-30292 Apache NuttX RTOS: tools/bdf-converter.: tools/bdf-converter: Fix loop termination condition. CVSS 3.1CRITICAL 9.8
- TI-2021-08260 malloc, realloc and memalign implementations are vulnerable to integer wrap-arounds CVSS 3.1CRITICAL 9.8
- TI-2020-01863 NULL pointer dereference in Apache NuttX CVSS 3.1CRITICAL 9.8
- TI-2020-13276 Apache NuttX (incubating) Out of Bound Write from invalid TCP Urgent length CVSS 3.1CRITICAL 9.1
Sources
- CVE-2020-17529 · CVE Program
- CVE-2020-17529 · NVD
- FIRST EPSS
- GHSA-5jrc-q622-h2ww · GitHub Advisory Database · CC BY 4.0
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