An issue was discovered in Wind River VxWorks through 6.8.
Priority MEDIUM 48CWE-787Published · Updated
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
An issue was discovered in Wind River VxWorks through 6.8. There is a possible stack overflow in dhcp server.
Why it matters now
EPSS 0.03099 87th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:windriver:vxworks:*:*:*:*:*:*:*:* | up to 6.8 | Vulnerable | Wind River |
- cpe:2.3:o:windriver:vxworks:*:*:*:*:*:*:*:* Versions up to 6.8 Vulnerable ·Wind River
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-29999
- 2026-10-03 Alias added: GHSA-pjw5-hf2q-wg7j
References
More Wind River Vxworks vulnerabilities
- TI-2010-02837 The WDB target agent debug service in Wind River VxWorks 6.x, 5.x, and earlier, as used… CVSS 3.1CRITICAL 9.8
- TI-2019-09143 Wind River VxWorks has a Buffer Overflow in the TCP component (issue 1 of 4). CVSS 3.1CRITICAL 9.8
- TI-2019-09145 Wind River VxWorks 6.6 through 6.9 has a Buffer Overflow in the DHCP client component. CVSS 3.1HIGH 8.8
- TI-2023-19737 An issue was discovered in Wind River VxWorks 6.9 and 7. CVSS 3.1HIGH 8.8
- TI-2019-09144 Wind River VxWorks 6.9 and vx7 has a Buffer Overflow in the IPv4 component. CVSS 3.1CRITICAL 9.8
- TI-2019-09148 Wind River VxWorks 6.9 and vx7 has a Buffer Overflow in the TCP component (issue 2 of 4). CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-29999 · CVE Program
- CVE-2021-29999 · NVD
- FIRST EPSS
- GHSA-pjw5-hf2q-wg7j · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences