What is the CVSS score of CVE-2025-39876?

CVE-2025-39876 has a CVSS 3.1 base score of 5.5 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.0%.

Which versions of Debian Linux are affected by CVE-2025-39876?

CVE-2025-39876 presents moderate security risk, a null pointer dereference vulnerability rated CVSS 5.5. Exploitation could compromise the security of affected deployments.. A patch is available.

How to fix or mitigate CVE-2025-39876?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Vendor patch is available.

Debian Linux CVE-2025-39876

MEDIUM

NULL Pointer Dereference (CWE-476)

2025-09-23 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Denial Of Service Linux Null Pointer Dereference Red Hat Debian Linux Linux Kernel Suse

5.5

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:13 vuln.today

Patch released

Mar 28, 2026 - 19:13 nvd

Patch available

CVE Published

Sep 23, 2025 - 06:15 nvd

MEDIUM 5.5

DescriptionNVD

In the Linux kernel, the following vulnerability has been resolved:

net: fec: Fix possible NPD in fec_enet_phy_reset_after_clk_enable()

The function of_phy_find_device may return NULL, so we need to take care before dereferencing phy_dev.

AnalysisAI

In the Linux kernel, the following vulnerability has been resolved: net: fec: Fix possible NPD in fec_enet_phy_reset_after_clk_enable() The function of_phy_find_device may return NULL, so we need to. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.

Technical ContextAI

This vulnerability is classified as NULL Pointer Dereference (CWE-476), which allows attackers to crash the application by dereferencing a null pointer. In the Linux kernel, the following vulnerability has been resolved: net: fec: Fix possible NPD in fec_enet_phy_reset_after_clk_enable() The function of_phy_find_device may return NULL, so we need to take care before dereferencing phy_dev. Affected products include: Linux Linux Kernel, Debian Debian Linux.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Check pointers before dereferencing. Use static analysis tools to detect null pointer paths.