CVE-2024-39780 | Use of unsafe yaml load in dynparam

A YAML deserialization vulnerability was found in the Robot Operating System (ROS) 'dynparam', a command-line tool for getting, setting, and deleting parameters of a dynamically configurable node, affecting ROS distributions Noetic and earlier. The issue is caused by the use of the yaml.load() function in the 'set' and 'get' verbs, and allows for the creation of arbitrary Python objects. Through this flaw, a local or remote user can craft and execute arbitrary Python code.

Published: 2025-04-02 Last update: 2025-08-26 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-39780 is rated Moderate Risk (58.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.10%). Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2024-39780

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 2026-05-13 1.04% 1.10% +0.05%
2 2026-05-11 0.73% 1.04% +0.31%
3 2026-01-27 — 0.73% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-39780

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2024-39780

OS Trackers for CVE-2024-39780

vendor priority summary link
debian not yet assigned CVE-2024-39780 not yet assigned priority: Debian including 1 source packages (ros-dynamic-reconfigure), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 3, resolved 2. https://security-tracker.debian.org/tracker/CVE-2024-39780
ubuntu medium CVE-2024-39780 medium priority: Ubuntu including 4 source packages (ros-dynamic-reconfigure, ros-kinetic-dynamic-reconfigure, ros-melodic-dynamic-reconfigure, ros-noetic-dynamic-reconfigure), 15 status rows across 9 suites (bionic, focal, jammy, noble, oracular, plucky, questing, upstream, xenial): DNE 4, ignored 4, needs-triage 4, released 3. https://ubuntu.com/security/CVE-2024-39780

Affected software / configurations for CVE-2024-39780

Vendor Product Version Raw CPE
openrobotics robot_operating_system indigo_igloo cpe:2.3:o:openrobotics:robot_operating_system:indigo_igloo:*:*:*:*:*:*:*
openrobotics robot_operating_system kinetic_kame cpe:2.3:o:openrobotics:robot_operating_system:kinetic_kame:*:*:*:*:*:*:*
openrobotics robot_operating_system melodic_morenia cpe:2.3:o:openrobotics:robot_operating_system:melodic_morenia:*:*:*:*:*:*:*
openrobotics robot_operating_system noetic_ninjemys cpe:2.3:o:openrobotics:robot_operating_system:noetic_ninjemys:*:*:*:*:*:*:*

References for CVE-2024-39780

cvelogic Threat Intelligence