CVE-2017-10869
CVE-2017-10869 is a high-severity vulnerability in Dena H2o 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-119.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 3% (85th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Dena H2o
- Published:
- Last modified:
Description
Buffer overflow in H2O version 2.2.2 and earlier allows remote attackers to cause a denial-of-service in the server via unspecified vectors.
Frequently asked questions
- What is CVE-2017-10869?
- Buffer overflow in H2O version 2.2.2 and earlier allows remote attackers to cause a denial-of-service in the server via unspecified vectors.
- How severe is CVE-2017-10869?
- CVE-2017-10869 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-2017-10869 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2017-10869?
- CVE-2017-10869 affects Dena H2o. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2017-10869?
- 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-2017-10869 published?
- CVE-2017-10869 was published on 2017-12-22 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:dena:h2o:*:*:*:*:*:*:*:*
More vulnerabilities in Dena H2o
- CVE-2018-0608 — Critical (CVSS 9.8): Buffer overflow in H2O version 2.2.4 and earlier allows remote attackers to execute arbitrary code or cause a denial of…
- CVE-2016-7835 — Critical (CVSS 9.1): Use-after-free vulnerability in H2O allows remote attackers to cause a denial-of-service (DoS) or obtain server…
- CVE-2023-30847 — High (CVSS 8.2): H2O is an HTTP server. In versions 2.3.0-beta2 and prior, when the reverse proxy handler tries to processes a certain…
- CVE-2023-44487 — High (CVSS 7.5): The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset…
- CVE-2017-10908 — High (CVSS 7.5): H2O version 2.2.3 and earlier allows remote attackers to cause a denial of service in the server via specially crafted…
- CVE-2017-10868 — High (CVSS 7.5): H2O version 2.2.2 and earlier allows remote attackers to cause a denial of service in the server via specially crafted…
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