CVE-2026-31417

Severity CVSS v4.0:

Pending analysis

Type:

CWE-191 Integer Underflow (Wrap or Wraparound)

Publication date:

13/04/2026

Last modified:

20/05/2026

Description

In the Linux kernel, the following vulnerability has been resolved: net/x25: Fix overflow when accumulating packets Add a check to ensure that `x25_sock.fraglen` does not overflow. The `fraglen` also needs to be resetted when purging `fragment_queue` in `x25_clear_queues()`.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

7.50

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	2.6.12.1 (including)	5.10.253 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.203 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.168 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.134 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.12.81 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.13 (including)	6.18.22 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.19 (including)	6.19.12 (excluding)
cpe:2.3:o:linux:linux_kernel:2.6.12:-::::::
cpe:2.3:o:linux:linux_kernel:2.6.12:rc2::::::
cpe:2.3:o:linux:linux_kernel:2.6.12:rc3::::::
cpe:2.3:o:linux:linux_kernel:2.6.12:rc4::::::
cpe:2.3:o:linux:linux_kernel:2.6.12:rc5::::::
cpe:2.3:o:linux:linux_kernel:2.6.12:rc6::::::
cpe:2.3:o:linux:linux_kernel:7.0:rc1::::::
cpe:2.3:o:linux:linux_kernel:7.0:rc2::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2026-31417

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools