CVE-2025-39833: Software Security Vulnerability Vulnerability

MODERATE

Advisory Identifier: GHSA-hqfq-8fx5-m4r2

CVSS 5.5

Published 2025-09-16

Advisory Summary

CVE-2025-39833 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (CWE-908: Use of Uninitialized Resource) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product uses or accesses a resource that has not been initialized.. Remediation is available in the latest vendor maintenance releases.

CVE-2025-39833 at a Glance

CVE Identifier CVE-2025-39833

GHSA Identifier GHSA-hqfq-8fx5-m4r2

Severity MODERATE

CVSS v3.1 Base Score 5.5

CWE Classification CWE-908: Use of Uninitialized Resource

Affected Product Software

Package Ecosystem Maven

Published Date 2025-09-16

Last Updated 2026-09-02

Security Impact

CVSS: 5.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Local (AV:L)

Attack Complexity Low (AC:L)

Privileges Required Low (PR:L)

User Interaction None (UI:N)

Scope Unchanged (S:U)

Confidentiality None (C:N)

Integrity None (I:N)

Availability High (A:H)

How to Fix CVE-2025-39833

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2025-39833, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-908: Use of Uninitialized Resource, where the product uses or accesses a resource that has not been initialized. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

In the Linux kernel, the following vulnerability has been resolved: mISDN: hfcpci: Fix warning when deleting uninitialized timer With CONFIG_DEBUG_OBJECTS_TIMERS unloading hfcpci module leads to the following splat: [ 250.215892] ODEBUG: assert_init not available (active state 0) object: ffffffffc01a3dc0 object type: timer_list hint: 0x0 [ 250.217520] WARNING: CPU: 0 PID: 233 at lib/debugobjects.c:612 debug_print_object+0x1b6/0x2c0 [ 250.218775] Modules linked in: hfcpci(-) mISDN_core [ 250.219537] CPU: 0 UID: 0 PID: 233 Comm: rmmod Not tainted 6.17.0-rc2-g6f713187ac98 #2 PREEMPT(voluntary) [ 250.220940] Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 250.222377] RIP: 0010:debug_print_object+0x1b6/0x2c0 [ 250.223131] Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 4f 41 56 48 8b 14 dd a0 4e 01 9f 48 89 ee 48 c7 c7 20 46 01 9f e8 cb 84d [ 250.225805] RSP: 0018:ffff888015ea7c08 EFLAGS: 00010286 [ 250.226608] RAX: 0000000000000000 RBX: 0000000000000005 RCX: ffffffff9be93a95 [ 250.227708] RDX: 1ffff1100d945138 RSI: 0000000000000008 RDI: ffff88806ca289c0 [ 250.228993] RBP: ffffffff9f014a00 R08: 0000000000000001 R09: ffffed1002bd4f39 [ 250.230043] R10: ffff888015ea79cf R11: 0000000000000001 R12: 0000000000000001 [ 250.231185] R13: ffffffff9eea0520 R14: 0000000000000000 R15: ffff888015ea7cc8 [ 250.232454] FS: 00007f3208f01540(0000) GS:ffff8880caf5a000(0000) knlGS:0000000000000000 [ 250.233851] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 250.234856] CR2: 00007f32090a7421 CR3: 0000000004d63000 CR4: 00000000000006f0 [ 250.236117] Call Trace: [ 250.236599] <TASK> [ 250.236967] ? trace_irq_enable.constprop.0+0xd4/0x130 [ 250.237920] debug_object_assert_init+0x1f6/0x310 [ 250.238762] ? __pfx_debug_object_assert_init+0x10/0x10 [ 250.239658] ? __lock_acquire+0xdea/0x1c70 [ 250.240369] __try_to_del_timer_sync+0x69/0x140 [ 250.241172] ? __pfx___try_to_del_timer_sync+0x10/0x10 [ 250.242058] ? __timer_delete_sync+0xc6/0x120 [ 250.242842] ? lock_acquire+0x30/0x80 [ 250.243474] ? __timer_delete_sync+0xc6/0x120 [ 250.244262] __timer_delete_sync+0x98/0x120 [ 250.245015] HFC_cleanup+0x10/0x20 [hfcpci] [ 250.245704] __do_sys_delete_module+0x348/0x510 [ 250.246461] ? __pfx___do_sys_delete_module+0x10/0x10 [ 250.247338] do_syscall_64+0xc1/0x360 [ 250.247924] entry_SYSCALL_64_after_hwframe+0x77/0x7f Fix this by initializing hfc_tl timer with DEFINE_TIMER macro. Also, use mod_timer instead of manual timeout update.

References

NVD — CVE-2025-39833 NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-39833

git.kernel.org/stable/c/43fc5da813... WEB

https://git.kernel.org/stable/c/43fc5da8133badf17f5df250ba03b9d882254845

git.kernel.org/stable/c/544ffd62dd... WEB

https://git.kernel.org/stable/c/544ffd62ddd093c71150e4d4c542f98153fb8e46

git.kernel.org/stable/c/75194165e6... WEB

https://git.kernel.org/stable/c/75194165e65018c581b128379b91b0b2d64638d9

git.kernel.org/stable/c/97766512a9... WEB

https://git.kernel.org/stable/c/97766512a9951b9fd6fc97f1b93211642bb0b220

git.kernel.org/stable/c/d8be1288e3... WEB

https://git.kernel.org/stable/c/d8be1288e398ccda2dc590fdaa0551f192f6a1c6

Frequently Asked Questions

What is CVE-2025-39833?

CVE-2025-39833 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-908: Use of Uninitialized Resource.

Which Software versions are affected?

Affected versions include releases prior to current release patches.

What version fixes CVE-2025-39833?

Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.

What is the CVSS score of CVE-2025-39833?

CVE-2025-39833 has a CVSS v3.1 base score of 5.5 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

What CWE is associated with CVE-2025-39833?

CVE-2025-39833 is classified under CWE-908: Use of Uninitialized Resource (The product uses or accesses a resource that has not been initialized.).

How can I check Maven dependencies for CVE-2025-39833?

Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.

Machine-readable OSV JSON OSV v1.5 Schema

Normalized schema output

View Raw JSON

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-hqfq-8fx5-m4r2",
  "modified" : "2026-09-02T15:33:17Z",
  "published" : "2025-09-16T15:32:36Z",
  "aliases" : [ "CVE-2025-39833" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nmISDN: hfcpci: Fix warning when deleting uninitialized timer\n\nWith CONFIG_DEBUG_OBJECTS_TIMERS unloading hfcpci module leads\nto the following splat:\n\n[  250.215892] ODEBUG: assert_init not available (active state 0) object: ffffffffc01a3dc0 object type: timer_list hint: 0x0\n[  250.217520] WARNING: CPU: 0 PID: 233 at lib/debugobjects.c:612 debug_print_object+0x1b6/0x2c0\n[  250.218775] Modules linked in: hfcpci(-) mISDN_core\n[  250.219537] CPU: 0 UID: 0 PID: 233 Comm: rmmod Not tainted 6.17.0-rc2-g6f713187ac98 #2 PREEMPT(voluntary)\n[  250.220940] Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n[  250.222377] RIP: 0010:debug_print_object+0x1b6/0x2c0\n[  250.223131] Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 4f 41 56 48 8b 14 dd a0 4e 01 9f 48 89 ee 48 c7 c7 20 46 01 9f e8 cb 84d\n[  250.225805] RSP: 0018:ffff888015ea7c08 EFLAGS: 00010286\n[  250.226608] RAX: 0000000000000000 RBX: 0000000000000005 RCX: ffffffff9be93a95\n[  250.227708] RDX: 1ffff1100d945138 RSI: 0000000000000008 RDI: ffff88806ca289c0\n[  250.228993] RBP: ffffffff9f014a00 R08: 0000000000000001 R09: ffffed1002bd4f39\n[  250.230043] R10: ffff888015ea79cf R11: 0000000000000001 R12: 0000000000000001\n[  250.231185] R13: ffffffff9eea0520 R14: 0000000000000000 R15: ffff888015ea7cc8\n[  250.232454] FS:  00007f3208f01540(0000) GS:ffff8880caf5a000(0000) knlGS:0000000000000000\n[  250.233851] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  250.234856] CR2: 00007f32090a7421 CR3: 0000000004d63000 CR4: 00000000000006f0\n[  250.236117] Call Trace:\n[  250.236599]  <TASK>\n[  250.236967]  ? trace_irq_enable.constprop.0+0xd4/0x130\n[  250.237920]  debug_object_assert_init+0x1f6/0x310\n[  250.238762]  ? __pfx_debug_object_assert_init+0x10/0x10\n[  250.239658]  ? __lock_acquire+0xdea/0x1c70\n[  250.240369]  __try_to_del_timer_sync+0x69/0x140\n[  250.241172]  ? __pfx___try_to_del_timer_sync+0x10/0x10\n[  250.242058]  ? __timer_delete_sync+0xc6/0x120\n[  250.242842]  ? lock_acquire+0x30/0x80\n[  250.243474]  ? __timer_delete_sync+0xc6/0x120\n[  250.244262]  __timer_delete_sync+0x98/0x120\n[  250.245015]  HFC_cleanup+0x10/0x20 [hfcpci]\n[  250.245704]  __do_sys_delete_module+0x348/0x510\n[  250.246461]  ? __pfx___do_sys_delete_module+0x10/0x10\n[  250.247338]  do_syscall_64+0xc1/0x360\n[  250.247924]  entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nFix this by initializing hfc_tl timer with DEFINE_TIMER macro.\nAlso, use mod_timer instead of manual timeout update.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-39833"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/43fc5da8133badf17f5df250ba03b9d882254845"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/544ffd62ddd093c71150e4d4c542f98153fb8e46"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/75194165e65018c581b128379b91b0b2d64638d9"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/97766512a9951b9fd6fc97f1b93211642bb0b220"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d8be1288e398ccda2dc590fdaa0551f192f6a1c6"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-908" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2025-09-16T14:15:51Z"
  }
}

CVSS V3

5.5 MODERATE