PT-2025-33789 · Linux+5 · Linux Kernel+5

Syzbot · Published 2025-07-23 · Updated 2026-05-26 · CVE-2025-38591

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: Linux kernel (affected versions not specified)

Description: The Linux kernel contains a vulnerability in the BPF (Berkeley Packet Filter) subsystem. A crafted BPF program can cause a kernel warning due to improper handling of narrower access to pointer context fields. Specifically, the verifier may allow access that should be considered invalid, leading to a kernel warning during context access conversion. This issue affects multiple fields in context structures that allow narrow access.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Weakness Enumeration

CWE-20

CWE-664

Related Identifiers

AZL-66440

AZL-71033

BDU:2026-05191

CVE-2025-38591

ECHO-FBA8-8EEA-CF48

OESA-2026-1759

OESA-2026-1760

OESA-2026-1761

OPENSUSE-SU-2025:20081-1

SUSE-SU-2025:03272-1

SUSE-SU-2025:03290-1

SUSE-SU-2025:03301-1

SUSE-SU-2025:03382-1

SUSE-SU-2025:03602-1

SUSE-SU-2025:03633-1

SUSE-SU-2025:03634-1

SUSE-SU-2025:20653-1

SUSE-SU-2025:20669-1

SUSE-SU-2025:20739-1

SUSE-SU-2025:20756-1

SUSE-SU-2025:21074-1

SUSE-SU-2025:21139-1

SUSE-SU-2025:21179-1

SUSE-SU-2025_03272-1

SUSE-SU-2025_03290-1

SUSE-SU-2025_03301-1

SUSE-SU-2025_03382-1

SUSE-SU-2026:0473-1

USN-8162-1

USN-8180-1

USN-8180-2

USN-8180-3

USN-8180-4

USN-8180-5

USN-8180-6

USN-8186-1

USN-8187-1

USN-8188-1

USN-8243-1

USN-8275-1

USN-8278-1

USN-8278-2

USN-8289-1

USN-8289-2

USN-8296-1

USN-8296-2

USN-8297-1

Affected Products

Debian

Linuxmint

Linux Kernel

Red Os

Suse

Ubuntu

References · 2770

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38591.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-68261 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-71149 · Security Note
• https://ubuntu.com/security/CVE-2025-40088 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23112 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68200 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23213 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23010 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40043 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68728 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40110 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68308 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40087 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68372 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23113 · Vendor Advisory