SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-5950

The SingleDocParser::HandleNode function in yaml-cpp (aka LibYaml-C++) 0.5.3 allows remote attackers to cause a denial of service (stack consumption and application crash) via a crafted YAML file.

MEDIUM 5.5EPSS 2.03%

Does this matter?

Lower severity and a low EPSS score (2.03%). Track it; it rarely justifies an emergency change on its own.

Description

The SingleDocParser::HandleNode function in yaml-cpp (aka LibYaml-C++) 0.5.3 allows remote attackers to cause a denial of service (stack consumption and application crash) via a crafted YAML file.

CVSS 3.0
5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS
2.03% probability · 81th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-119
Affected
yaml-cpp project/yaml-cpp
Source
cve@mitre.org
EPSS trend
0%3%5%21 September 2026: 3.62%22 September 2026: 2.03%27 October 2026: 2.03%21 September 202627 October 2026

EPSS moved from 3.6% on 21 September 2026 to 2.0% on 27 October 2026.

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