CVE-2019-6285

Exp

The SingleDocParser::HandleFlowSequence function in yaml-cpp (aka LibYaml-C++) 0.6.2 allows remote attackers to cause a denial of service (stack consumption and application crash) via a crafted YAML file.

Published: 2019-01-14 Last update: 2025-11-03 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-6285 is rated High Exploit Risk (68.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.95%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2019-6285

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2019-6285

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-19 0.70% 0.95% +0.26%
2 2026-04-29 0.81% 0.70% -0.11%
3 2026-04-06 — 0.81% —

Full EPSS history (21 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-6285

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2019-6285

OS Trackers for CVE-2019-6285

vendor priority summary link
debian low CVE-2019-6285 low priority: Debian including 1 source packages (yaml-cpp), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2019-6285
redhat low — https://access.redhat.com/security/cve/CVE-2019-6285
suse medium CVE-2019-6285 severity moderate: SUSE including 287 source package names (0.21.0.1.8.13:libyaml-cpp0_6-0.6.1-4.5.1, 0.23.0.3.2.201:libyaml-cpp0_6-0.6.1-4.5.1, …), 354 product×package rows across 106 product lines (Container bci/bci-init, Container bci/golang, … (106 product lines)): Known Affected 181, Fixed 168, Known Not Affected 4, First Fixed 1. https://www.suse.com/security/cve/CVE-2019-6285/
ubuntu low CVE-2019-6285 low priority: Ubuntu including 2 source packages (yaml-cpp, yaml-cpp0.3), 38 status rows across 19 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 15, not-affected 11, ignored 4, needed 4, needs-triage 3, released 1. https://ubuntu.com/security/CVE-2019-6285

Affected software / configurations for CVE-2019-6285

Vendor Product Version Raw CPE
yaml-cpp_project yaml-cpp 0.6.2 cpe:2.3:a:yaml-cpp_project:yaml-cpp:0.6.2:*:*:*:*:*:*:*

References for CVE-2019-6285

cvelogic Threat Intelligence