Unicorn Engine 1.0.2 has an out-of-bounds write in helper_wfe_arm.
Priority LOW 25CWE-787Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · 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
Unicorn Engine 1.0.2 has an out-of-bounds write in helper_wfe_arm.
Why it matters now
EPSS 0.00273 19th 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:a:unicorn-engine:unicorn_engine:1.0.2:*:*:*:*:*:*:* | 1.0.2 | Vulnerable | Unicorn-engine |
- cpe:2.3:a:unicorn-engine:unicorn_engine:1.0.2:*:*:*:*:*:*:* Versions 1.0.2 Vulnerable ·Unicorn-engine
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2020-36431
- 2026-10-03 Alias added: GHSA-6p92-xrqh-cgxx
References
More Unicorn-engine Unicorn Engine vulnerabilities
- TI-2022-12108 Unicorn Engine v2.0.0-rc7 and below was discovered to contain a NULL pointer dereference via qemu_ram_free. CVSS 3.1HIGH 7.5
- TI-2022-12106 Unicorn Engine v1.0.3 was discovered to contain a use-after-free vulnerability via the hook function. CVSS 3.1HIGH 7.8
- TI-2021-19809 An issue was discovered in split_region in uc.c in Unicorn Engine before 2.0.0-rc5. CVSS 3.1HIGH 8.1
- TI-2022-12109 Unicorn Engine v2.0.0-rc7 contains memory leaks caused by an incomplete unicorn engine initialization. CVSS 3.1HIGH 7.5
- TI-2022-12107 Unicorn Engine v2.0.0-rc7 and below was discovered to contain a memory leak via the… CVSS 3.1HIGH 7.5
- TI-2021-15054 Unicorn Engine 1.0.2 has an out-of-bounds write in tb_flush_armeb (called from… CVSS 3.1MEDIUM 5.5
Sources
- CVE-2020-36431 · CVE Program
- CVE-2020-36431 · NVD
- FIRST EPSS
- GHSA-6p92-xrqh-cgxx · GitHub Advisory Database · CC BY 4.0
- CVE-2020-36431 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences