SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2014-8090

The REXML parser in Ruby 1.9.x before 1.9.3 patchlevel 551, 2.0.x before 2.0.0 patchlevel 598, and 2.1.x before 2.1.5 allows remote attackers to cause a denial of service (CPU and memory consumption) a crafted XML document containing an empty string in…

MEDIUM 5.0EPSS 5.71%

Does this matter?

Lower severity and a low EPSS score (5.71%). Track it; it rarely justifies an emergency change on its own.

Description

The REXML parser in Ruby 1.9.x before 1.9.3 patchlevel 551, 2.0.x before 2.0.0 patchlevel 598, and 2.1.x before 2.1.5 allows remote attackers to cause a denial of service (CPU and memory consumption) a crafted XML document containing an empty string in an entity that is used in a large number of nested entity references, aka an XML Entity Expansion (XEE) attack. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-1821 and CVE-2014-8080.

CVSS 2.0
5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS
5.71% probability · 93th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
ruby-lang/ruby
Source
secalert@redhat.com
EPSS trend
0%5%10%26 October 2026: 5.71%26 October 202626 October 2026

EPSS 5.7% 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.