CVE-2014-9130

Libyaml vulnerability

CVSS

5.0

EPSS

13.2%

EPSS pct

96th

Exploited

No known

scanner.c in LibYAML 0.1.5 and 0.1.6, as used in the YAML-LibYAML (aka YAML-XS) module for Perl, allows context-dependent attackers to cause a denial of service (assertion failure and crash) via vectors involving line-wrapping.

Affected vendor

Pyyaml

Affected product

Libyaml

CVSS vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Weakness type (CWE)

CWE-20 — Improper Input Validation

Published

2014-12-08

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to partial impact to availability.

Its EPSS score of 13.2% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2014-9130

Confirm whether Pyyaml Libyaml is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2014-9130.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2014-9130

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2014-9130 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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