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Fencer Intel
medium 6.5

CVE-2025-14242 json

Vsftpd: vsftpd: denial of service via integer overflow in ls command parameter parsing

published 9mo ago modified 6d ago also EUVD-2026-2461

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

Summary

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.

Patch / fix

  • Red Hat Red Hat Enterprise Linux 10 0:3.0.5-10.el10_1.1
  • Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 0:3.0.5-9.el10_0.1
  • Red Hat Red Hat Enterprise Linux 8 0:3.0.3-36.el8_10.3
  • Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support 0:3.0.3-31.el8_2.1
  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:3.0.3-33.el8_4.1
  • Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:3.0.3-33.el8_4.1
  • Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:3.0.3-35.el8_6.1
  • Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service 0:3.0.3-35.el8_6.1
  • Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:3.0.3-35.el8_6.1
  • Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:3.0.3-35.el8_8.1
  • Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:3.0.3-35.el8_8.1
  • Red Hat Red Hat Enterprise Linux 9 0:3.0.5-6.el9_7.2
  • Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions 0:3.0.3-49.el9_0.1
  • Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:3.0.5-4.el9_2.1
  • Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support 0:3.0.5-5.el9_4.1
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 0:3.0.5-6.el9_6.1
  • vsftpd RHEL 8 3.0.3-36.el8_10.3
  • vsftpd RHEL 9 3.0.5-6.el9_7.2
  • vsftpd RHEL 10.1 3.0.5-10.el10_1.1
  • vsftpd RHEL 8.8 TUS, RHEL 8.8 E4S 3.0.3-35.el8_8.1
  • vsftpd enterprise linux eus 10.0 3.0.5-9.el10_0.1
  • vsftpd RHEL 8.6 TUS, RHEL 8.6 E4S, RHEL 8.6 AUS 3.0.3-35.el8_6.1
  • vsftpd RHEL 9.0 E4S 3.0.3-49.el9_0.1
  • vsftpd RHEL 9.4 EUS 3.0.5-5.el9_4.1

red hat advisories RHSA-2026:4554RHSA-2026:4553RHSA-2026:4550RHSA-2026:4543RHSA-2026:4525RHSA-2026:4522

  • vsftpd SLE Module for Server Applications 15 SP7 3.0.5-150600.10.9.1
  • vsftpd SLES LTSS Extended Security 12 SP5 3.0.5-60.1

suse advisories SUSE-SU-2026:5156-1SUSE-SU-2026:5155-1

  • vsftpd openSUSE Tumbleweed 3.0.5-20.1

opensuse advisories openSUSE-SU-2026:12494-1

  • vsftpd AlmaLinux 9 3.0.5-6.el9_7.2
  • vsftpd AlmaLinux 10 3.0.5-10.el10_1.1
  • vsftpd AlmaLinux 8 3.0.3-36.el8_10.3

almalinux advisories ALSA-2026:0605ALSA-2026:0606ALSA-2026:0608

  • vsftpd Rocky Linux 10 3.0.5-10.el10_1.1
  • vsftpd Rocky Linux 9 3.0.5-6.el9_7.2
  • vsftpd Rocky Linux 8 3.0.3-36.el8_10.3

rocky linux advisories RLSA-2026:0606RLSA-2026:0605RLSA-2026:0608

Is CVE-2025-14242 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-14242 updated cvss 6.5

vsftpd: vsftpd: Denial of service via integer overflow in ls command parameter parsing

  • Red Hat Enterprise Linux 6 vsftpd Red Hat Enterprise Linux 7 vsftpd, vsftpd-sysvinit
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 8) vsftpd 3.0.3-36.el8_10.3
    fixed: vendor fix RHSA-2026:0608
  • Red Hat Enterprise Linux AppStream (v. 9) vsftpd 3.0.5-6.el9_7.2
    fixed: vendor fix RHSA-2026:0605
  • Red Hat Enterprise Linux AppStream (v. 10) vsftpd 3.0.5-10.el10_1.1
    fixed: vendor fix RHSA-2026:0606
  • Red Hat Enterprise Linux AppStream AUS (v. 8.2) vsftpd 3.0.3-31.el8_2.1
    fixed: vendor fix RHSA-2026:4470
  • Red Hat Enterprise Linux AppStream AUS (v.8.4) vsftpd 3.0.3-33.el8_4.1
    fixed: vendor fix RHSA-2026:4477
  • Red Hat Enterprise Linux AppStream AUS (v.8.6) vsftpd 3.0.3-35.el8_6.1 Red Hat Enterprise Linux AppStream E4S (v.8.6) vsftpd 3.0.3-35.el8_6.1
    fixed: vendor fix RHSA-2026:4550
  • Red Hat Enterprise Linux AppStream E4S (v.8.8) vsftpd 3.0.3-35.el8_8.1
    fixed: vendor fix RHSA-2026:4554
show 8 more
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) vsftpd 3.0.3-49.el9_0.1
    fixed: vendor fix RHSA-2026:4543
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) vsftpd 3.0.5-4.el9_2.1
    fixed: vendor fix RHSA-2026:4522
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) vsftpd 3.0.5-9.el10_0.1
    fixed: vendor fix RHSA-2026:4553
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) vsftpd 3.0.5-5.el9_4.1
    fixed: vendor fix RHSA-2026:4525
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) vsftpd 3.0.5-6.el9_6.1
    fixed: vendor fix RHSA-2026:4513
  • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) vsftpd 3.0.3-33.el8_4.1
    fixed: vendor fix RHSA-2026:4477
  • Red Hat Enterprise Linux AppStream TUS (v.8.6) vsftpd 3.0.3-35.el8_6.1
    fixed: vendor fix RHSA-2026:4550
  • Red Hat Enterprise Linux AppStream TUS (v.8.8) vsftpd 3.0.3-35.el8_8.1
    fixed: vendor fix RHSA-2026:4554

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
9mo ago

Exploit prediction

0.81% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support
  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  • Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
  • Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  • Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service
  • Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service
  • Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.