CVE-2020-25574
CVE-2020-25574 is a high-severity vulnerability in Hyper Http with a CVSS 3.x base score of 7.5. 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-190.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 2% (82nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-190
- Affected product: Hyper Http
- Published:
- Last modified:
Description
An issue was discovered in the http crate before 0.1.20 for Rust. An integer overflow in HeaderMap::reserve() could result in denial of service (e.g., an infinite loop).
Frequently asked questions
- What is CVE-2020-25574?
- An issue was discovered in the http crate before 0.1.20 for Rust. An integer overflow in HeaderMap::reserve() could result in denial of service (e.g., an infinite loop).
- How severe is CVE-2020-25574?
- CVE-2020-25574 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2020-25574 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-25574?
- CVE-2020-25574 affects Hyper Http. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-25574?
- 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-2020-25574 published?
- CVE-2020-25574 was published on 2020-09-14 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:hyper:http:*:*:*:*:*:*:*:*
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