Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| 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 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | vsftpd | 3.0.5-10.el10_1.1 | RHSA-2026:0606 |
| RHEL 9 | vsftpd | 3.0.5-6.el9_7.2 | RHSA-2026:0605 |
| RHEL 8 | vsftpd | 3.0.3-36.el8_10.3 | RHSA-2026:0608 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | vsftpd | 3.0.5-9.el10_0.1 | RHSA-2026:4553 |
| RHEL 9.6 EUS | vsftpd | 3.0.5-6.el9_6.1 | RHSA-2026:4513 |
| RHEL 9.4 EUS | vsftpd | 3.0.5-5.el9_4.1 | RHSA-2026:4525 |
| RHEL 9.2 E4S | vsftpd | 3.0.5-4.el9_2.1 | RHSA-2026:4522 |
| RHEL 9.0 E4S | vsftpd | 3.0.3-49.el9_0.1 | RHSA-2026:4543 |
| RHEL 8.8 TUS | vsftpd | 3.0.3-35.el8_8.1 | RHSA-2026:4554 |
| RHEL 8.8 E4S | vsftpd | 3.0.3-35.el8_8.1 | RHSA-2026:4554 |
| RHEL 8.6 TUS | vsftpd | 3.0.3-35.el8_6.1 | RHSA-2026:4550 |
| RHEL 8.6 E4S | vsftpd | 3.0.3-35.el8_6.1 | RHSA-2026:4550 |
| RHEL 8.6 AUS | vsftpd | 3.0.3-35.el8_6.1 | RHSA-2026:4550 |
| RHEL 8.4 EUS Long Life | vsftpd | 3.0.3-33.el8_4.1 | RHSA-2026:4477 |
| RHEL 8.4 AUS | vsftpd | 3.0.3-33.el8_4.1 | RHSA-2026:4477 |
| RHEL 8.2 AUS | vsftpd | 3.0.3-31.el8_2.1 | RHSA-2026:4470 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | vsftpd | 3.0.5-10.el10_1.1 | ALSA-2026:0606 |
| AlmaLinux 9 | vsftpd | 3.0.5-6.el9_7.2 | ALSA-2026:0605 |
| AlmaLinux 8 | vsftpd | 3.0.3-36.el8_10.3 | ALSA-2026:0608 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | vsftpd | 3.0.5-10.el10_1.1 | RLSA-2026:0606 |
| Rocky Linux 9 | vsftpd | 3.0.5-6.el9_7.2 | RLSA-2026:0605 |
| Rocky Linux 8 | vsftpd | 3.0.3-36.el8_10.3 | RLSA-2026:0608 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | vsftpd | 3.0.5-150600.10.9.1 | SUSE-SU-2026:5155-1 |
| SLES 15 SP5 | vsftpd | 3.0.5-150400.3.19.1 | SUSE-SU-2026:5222-1 |
| SLES 15 SP4 | vsftpd | 3.0.5-150400.3.19.1 | SUSE-SU-2026:5222-1 |
| SLES 12 SP5 | vsftpd | 3.0.5-60.1 | SUSE-SU-2026:5156-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP5 | vsftpd | 3.0.5-150400.3.19.1 | SUSE-SU-2026:5222-1 |
| SLES for SAP 15 SP4 | vsftpd | 3.0.5-150400.3.19.1 | SUSE-SU-2026:5222-1 |
| SLE HPC 15 SP5 | vsftpd | 3.0.5-150400.3.19.1 | SUSE-SU-2026:5222-1 |
| SLE HPC 15 SP4 | vsftpd | 3.0.5-150400.3.19.1 | SUSE-SU-2026:5222-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | vsftpd | 3.0.5-20.1 | openSUSE-SU-2026:12494-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | vsftpd | 3.0.5-1.amzn2023.0.3 | ALAS2023-2026-1432 |
| Amazon Linux 2 | vsftpd +1 | 3.0.2-25.amzn2.0.2 | ALAS2-2026-3176 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | vsftpd | 3.0.5-10.el10_1.1 | ELSA-2026-0606 |
| Oracle Linux 9 | vsftpd | 3.0.5-6.el9_7.2 | ELSA-2026-0605 |
| Oracle Linux 8 | vsftpd | 3.0.3-36.el8_10.3 | ELSA-2026-0608 |
Advisories 29
- RHSA-2026:0608 Red Hat Security Advisory: vsftpd security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- SUSE-SU-2026:5222-1 Security update for vsftpd SUSE / openSUSE Security Updates · Nov 13, 2026
- WID-SEC-2026-0113 Red Hat Enterprise Linux (vsftpd): Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Nov 12, 2026
- SUSE-SU-2026:5156-1 Security update for vsftpd SUSE / openSUSE Security Updates · Nov 10, 2026
- SUSE-SU-2026:5155-1 Security update for vsftpd SUSE / openSUSE Security Updates · Nov 10, 2026
- openSUSE-SU-2026:12494-1 vsftpd-3.0.5-20.1 on GA media SUSE / openSUSE Security Updates · Nov 9, 2026
- ALSA-2026:0606 Moderate: vsftpd security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:0605 Moderate: vsftpd security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:0608 Moderate: vsftpd security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:4554 Red Hat Security Advisory: vsftpd security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:4553 Red Hat Security Advisory: vsftpd security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:4543 Red Hat Security Advisory: vsftpd security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:4550 Red Hat Security Advisory: vsftpd security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:4525 Red Hat Security Advisory: vsftpd security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:4513 Red Hat Security Advisory: vsftpd security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:4522 Red Hat Security Advisory: vsftpd security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:4477 Red Hat Security Advisory: vsftpd security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:4470 Red Hat Security Advisory: vsftpd security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:0606 Red Hat Security Advisory: vsftpd security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:0605 Red Hat Security Advisory: vsftpd security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- WID-SEC-2026-0783 IBM QRadar SIEM: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 17, 2026
- ALAS2-2026-3176 Moderate: vsftpd security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Mar 5, 2026
- ALAS2023-2026-1432 Moderate: vsftpd security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 18, 2026
- RLSA-2026:0605 Moderate: vsftpd security update Rocky Linux Security Advisories · Jan 17, 2026
- RLSA-2026:0606 Moderate: vsftpd security update Rocky Linux Security Advisories · Jan 17, 2026
- RLSA-2026:0608 Moderate: vsftpd security update Rocky Linux Security Advisories · Jan 15, 2026
- ELSA-2026-0606 Moderate: vsftpd security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jan 15, 2026
- ELSA-2026-0605 Moderate: vsftpd security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jan 15, 2026
- ELSA-2026-0608 Moderate: vsftpd security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jan 15, 2026
References
- RHSA-2026:0605 vendor-advisory
- RHSA-2026:0606 vendor-advisory
- RHSA-2026:0608 vendor-advisory
- RHSA-2026:4470 vendor-advisory
- RHSA-2026:4477 vendor-advisory
- RHSA-2026:4513 vendor-advisory
- RHSA-2026:4522 vendor-advisory
- RHSA-2026:4525 vendor-advisory
- RHSA-2026:4543 vendor-advisory
- RHSA-2026:4550 vendor-advisory
- RHSA-2026:4553 vendor-advisory
- RHSA-2026:4554 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2025-14242 vdb-entry
- RHBZ#2419826 issue-tracking