CVE-2025-14242 | Vsftpd: vsftpd: denial of service via integer overflow in ls command parameter parsing

A flaw was found in vsftpd. This vulnerability allows a denial of service (DoS) via an integer overflow in the ls command parameter parsing, triggered by a remote, authenticated attacker sending a crafted STAT command with a specific byte sequence.

Published: 2026-01-14 Last update: 2026-06-29 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-14242 is rated Moderate Risk (43.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.74%). 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-2025-14242

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 2026-06-15 0.14% 0.74% +0.59%
2 2026-06-12 0.20% 0.14% -0.06%
3 2026-05-16 — 0.20% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-14242

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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: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: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]

Weakness enumeration for CVE-2025-14242

OS Trackers for CVE-2025-14242

vendor priority summary link
debian unimportant CVE-2025-14242 unimportant priority: Debian including 1 source packages (vsftpd), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2025-14242
redhat medium — https://access.redhat.com/security/cve/CVE-2025-14242
suse medium CVE-2025-14242 severity moderate: SUSE including 2 source package names (vsftpd-3.0.3-36.el8_10.3, vsftpd-3.0.5-6.el9_7.2), 2 product×package rows across 2 product lines (SUSE Liberty Linux 8, SUSE Liberty Linux 9): Fixed 2. https://www.suse.com/security/cve/CVE-2025-14242/
ubuntu medium CVE-2025-14242 medium priority: Ubuntu including 1 source packages (vsftpd), 9 status rows across 9 suites (bionic, focal, jammy, noble, plucky, questing, trusty, upstream, xenial): not-affected 9. https://ubuntu.com/security/CVE-2025-14242

Affected software / configurations for CVE-2025-14242

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2025-14242

cvelogic Threat Intelligence