CVE-2020-35906
CVE-2020-35906 is a high-severity vulnerability in Rust-lang Futures-task with a CVSS 3.x base score of 7.8. 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-416.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 7.2
- EPSS exploit prediction: 0% (39th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-416
- Affected product: Rust-lang Futures-task
- Published:
- Last modified:
Description
An issue was discovered in the futures-task crate before 0.3.6 for Rust. futures_task::waker may cause a use-after-free in a non-static type situation.
Frequently asked questions
- What is CVE-2020-35906?
- An issue was discovered in the futures-task crate before 0.3.6 for Rust. futures_task::waker may cause a use-after-free in a non-static type situation.
- How severe is CVE-2020-35906?
- CVE-2020-35906 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-35906 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-35906?
- CVE-2020-35906 affects Rust-lang Futures-task. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-35906?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2020-35906 published?
- CVE-2020-35906 was published on 2020-12-31 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:rust-lang:futures-task:*:*:*:*:*:rust:*:*
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