7.5high
CVE-2016-4864
H2O versions 2.0.3 and earlier and 2.1.0-beta2 and earlier allows remote attackers to cause a denial-of-service (DoS) via format string spe…
Published 9 y ago · modified 4 mo ago · JSON
CVSS
7.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.8%
percentile 79%
Public exploits
0
none known
Summary
H2O versions 2.0.3 and earlier and 2.1.0-beta2 and earlier allows remote attackers to cause a denial-of-service (DoS) via format string specifiers in a template file via fastcgi, mruby, proxy, redirect or reproxy.
Exploit prediction (EPSS)
1.80% probability of exploitation in the next 30 days, higher than 79% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Affected products
- Kazuho Oku H2O
Classification
- Weakness
- CWE-134 Use of Externally-Controlled Format String
References
- github.com /h2o/h2o/issues/1077 · x_refsource_CONFIRM, x_transferred
- jvn.jp /en/jp/JVN94779084/index.html · third-party-advisory, x_refsource_JVN, x_transferred
Sources
- CVE List: CVE-2016-4864
- NVD: CVE-2016-4864
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