CVE-2024-27459

The interactive service in OpenVPN 2.6.9 and earlier allows an attacker to send data causing a stack overflow which can be used to execute arbitrary code with more privileges.

Published: 2024-07-08 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-27459 is rated High Risk (66.8/100): CVSS High severity, with medium exploitation likelihood (EPSS 5.42%). EPSS rose +4.21% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize 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-2024-27459

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 2025-11-21 1.21% 5.42% +4.21%
2 2025-11-18 5.42% 1.21% -4.21%
3 2025-07-17 — 5.42% —

Full EPSS history (17 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-27459

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:L/UI:N/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:L)
A normal user session is enough; they don’t have to be admin.
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.
 1.8 5.9 [email protected]
7.2 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:H/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:H)
They need powerful rights—admin, root, or similar—before this pays off.
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.
 1.2 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-27459

OS Trackers for CVE-2024-27459

vendor priority summary link
debian unimportant CVE-2024-27459 unimportant priority: Debian including 1 source packages (openvpn), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2024-27459
suse medium CVE-2024-27459 severity moderate: SUSE including 4 source package names (openvpn, openvpn-auth-pam-plugin, openvpn-devel, openvpn-down-root-plugin), 73 product×package rows across 28 product lines (SUSE Enterprise Storage 7.1, SUSE Linux Enterprise High Performance Computing 12 SP5, … (28 product lines)): Known Not Affected 73. https://www.suse.com/security/cve/CVE-2024-27459/
ubuntu medium CVE-2024-27459 medium priority: Ubuntu including 1 source packages (openvpn), 8 status rows across 8 suites (bionic, focal, jammy, mantic, noble, trusty, upstream, xenial): not-affected 7, ignored 1. https://ubuntu.com/security/CVE-2024-27459

Affected software / configurations for CVE-2024-27459

Vendor Product Version Raw CPE
openvpn openvpn < 2.5.10 cpe:2.3:a:openvpn:openvpn:*:*:*:*:community:*:*:*
openvpn openvpn >= 2.6.0, < 2.6.10 cpe:2.3:a:openvpn:openvpn:*:*:*:*:community:*:*:*

References for CVE-2024-27459

cvelogic Threat Intelligence