CVE-2025-14242: Integer Overflow or Wraparound in Red Hat Red Hat Enterprise Linux 10
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.
AI Analysis
Technical Summary
The vulnerability CVE-2025-14242 affects the vsftpd package in Red Hat Enterprise Linux 9 and 10. It is caused by an integer overflow or wraparound in the ls command parameter parsing when processing a crafted STAT command from a remote authenticated attacker. This leads to a denial of service condition. The issue has been rated with a CVSS v3.1 base score of 6.5 (medium severity) with network attack vector, low attack complexity, requiring privileges, no user interaction, and impacting availability only. Red Hat has issued official security advisories (RHSA-2026:0605 for RHEL 9 and RHSA-2026:0606 for RHEL 10) providing updated vsftpd packages that fix this vulnerability.
Potential Impact
Successful exploitation of this vulnerability allows a remote authenticated attacker to cause a denial of service by triggering an integer overflow in the ls command parameter parsing of vsftpd. There is no impact on confidentiality or integrity, only availability is affected.
Mitigation Recommendations
Red Hat has released official security updates for vsftpd that address CVE-2025-14242. Users should apply the updated packages as described in Red Hat advisories RHSA-2026:0605 (for RHEL 9) and RHSA-2026:0606 (for RHEL 10). Detailed update instructions are available at https://access.redhat.com/articles/11258. Applying these updates mitigates the vulnerability. No additional mitigation steps are indicated by the vendor.
CVE-2025-14242: Integer Overflow or Wraparound in Red Hat Red Hat Enterprise Linux 10
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.
CVSS v3.1
Score 6.5medium
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2025-14242 affects the vsftpd package in Red Hat Enterprise Linux 9 and 10. It is caused by an integer overflow or wraparound in the ls command parameter parsing when processing a crafted STAT command from a remote authenticated attacker. This leads to a denial of service condition. The issue has been rated with a CVSS v3.1 base score of 6.5 (medium severity) with network attack vector, low attack complexity, requiring privileges, no user interaction, and impacting availability only. Red Hat has issued official security advisories (RHSA-2026:0605 for RHEL 9 and RHSA-2026:0606 for RHEL 10) providing updated vsftpd packages that fix this vulnerability.
Potential Impact
Successful exploitation of this vulnerability allows a remote authenticated attacker to cause a denial of service by triggering an integer overflow in the ls command parameter parsing of vsftpd. There is no impact on confidentiality or integrity, only availability is affected.
Mitigation Recommendations
Red Hat has released official security updates for vsftpd that address CVE-2025-14242. Users should apply the updated packages as described in Red Hat advisories RHSA-2026:0605 (for RHEL 9) and RHSA-2026:0606 (for RHEL 10). Detailed update instructions are available at https://access.redhat.com/articles/11258. Applying these updates mitigates the vulnerability. No additional mitigation steps are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2025-12-08T03:42:06.011Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/errata/RHSA-2026:0605","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:0606","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:0608","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:4470","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:4477","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:4513","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:4522","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:4525","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:4543","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:4550","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:4553","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:4554","vendor":"Red Hat"},{"url":"https://access.redhat.com/security/cve/CVE-2025-14242","vendor":"Red Hat"}]
Threat ID: 6967b759d0ff220b956d62cb
Added to database: 01/14/2026, 15:33:45 UTC
Last enriched: 07/02/2026, 22:16:06 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 186
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