eCosCentric eCosPro RTOS Integer Overflow or Wraparound
Priority MEDIUM 43CWE-190Published · 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-190 and the CVSS impact.
Summary
eCosCentric eCosPro RTOS Versions 2.0.1 through 4.5.3 are vulnerable to integer wraparound in function calloc (an implementation of malloc). The unverified memory assignment can lead to arbitrary memory allocation, resulting in a heap-based buffer overflow.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.006 48th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| eCosCentric | eCosPro RTOS | 2.0.1 – 4.5.3 | — | No fix listed | CNA |
- eCosPro RTOS VendoreCosCentric Affected 2.0.1 – 4.5.3 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ecoscentric:ecospro:*:*:*:*:*:*:*:* | 2.0.1 – 4.5.3 | Vulnerable | eCosCentric |
- cpe:2.3:a:ecoscentric:ecospro:*:*:*:*:*:*:*:* Versions 2.0.1 – 4.5.3 Vulnerable ·eCosCentric
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-27417
- 2026-10-03 Alias added: GHSA-6gcq-2grw-gh92
References
Sources
- CVE-2021-27417 · CVE Program
- CVE-2021-27417 · NVD
- FIRST EPSS
- GHSA-6gcq-2grw-gh92 · 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