SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-10868

H2O version 2.2.2 and earlier allows remote attackers to cause a denial of service in the server via specially crafted HTTP/1 header.

HIGH 7.5EPSS 3.53%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (3.53%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

H2O version 2.2.2 and earlier allows remote attackers to cause a denial of service in the server via specially crafted HTTP/1 header.

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
3.53% probability · 89th percentile
CISA KEV
Not listed
Weakness
CWE-20
Affected
dena/h2o
Source
vultures@jpcert.or.jp

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.