CVE-2020-36431
CVE-2020-36431 is a medium-severity vulnerability in Unicorn-engine Unicorn Engine with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- CVSS v2: 2.1
- EPSS exploit prediction: 0% (19th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Unicorn-engine Unicorn Engine
- Published:
- Last modified:
Description
Unicorn Engine 1.0.2 has an out-of-bounds write in helper_wfe_arm.
Frequently asked questions
- What is CVE-2020-36431?
- Unicorn Engine 1.0.2 has an out-of-bounds write in helper_wfe_arm.
- How severe is CVE-2020-36431?
- CVE-2020-36431 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2020-36431 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-36431?
- CVE-2020-36431 affects Unicorn-engine Unicorn Engine. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-36431?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-36431 published?
- CVE-2020-36431 was published on 2021-07-20 and last updated on 2026-06-17.
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20245
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/unicorn/OSV-2020-837.yaml
Affected products (1)
- cpe:2.3:a:unicorn-engine:unicorn_engine:1.0.2:*:*:*:*:*:*:*
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