SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-27223

In Eclipse Jetty 9.4.6.v20170531 to 9.4.36.v20210114 (inclusive), 10.0.0, and 11.0.0 when Jetty handles a request containing multiple Accept headers with a large number of “quality” (i.e. q) parameters, the server may enter a denial of service (DoS)…

MEDIUM 5.3EPSS 78.0%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 78.0%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.

Description

In Eclipse Jetty 9.4.6.v20170531 to 9.4.36.v20210114 (inclusive), 10.0.0, and 11.0.0 when Jetty handles a request containing multiple Accept headers with a large number of “quality” (i.e. q) parameters, the server may enter a denial of service (DoS) state due to high CPU usage processing those quality values, resulting in minutes of CPU time exhausted processing those quality values.

CVSS 3.1
5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS
78.03% probability · 100th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-407, CWE-400
Affected
eclipse/jetty · apache/nifi · apache/spark · netapp/e-series santricity os controller · netapp/e-series santricity web services · netapp/element plug-in for vcenter server · netapp/hci · netapp/hci management node · netapp/management services for element software · netapp/snap creator framework · netapp/snapcenter · netapp/snapmanager · netapp/solidfire · debian/debian linux · apache/solr · oracle/rest data services
Source
emo@eclipse.org
EPSS trend
0%40%80%26 October 2026: 78.03%26 October 202626 October 2026

EPSS 78.0% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.