CVE-2025-68815: Software Security Vulnerability Vulnerability
HIGHCVE-2025-68815 is a HIGH (CVSS 7.8) security vulnerability vulnerability (CWE-416: Use After Free) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product reuses or references memory after it has been freed. at some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.. Remediation is available in the latest vendor maintenance releases.
CVE-2025-68815 at a Glance
Security Impact
CVSS: 7.8
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:H/I:H/A:H).
How to Fix CVE-2025-68815
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.
Run the following command in your project directory to verify that all resolved dependencies use the patched release:
mvn dependency:treeHow to Check if You Are Affected
To determine whether your Java application is affected by CVE-2025-68815, inspect your build dependencies using the Maven Dependency Plugin:
mvn dependency:treeAnalyze 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-416: Use After Free, where the product reuses or references memory after it has been freed. at some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. 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
References
Frequently Asked Questions
What is CVE-2025-68815?
Which Software versions are affected?
What version fixes CVE-2025-68815?
What is the CVSS score of CVE-2025-68815?
What CWE is associated with CVE-2025-68815?
How can I check Maven dependencies for CVE-2025-68815?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-46xw-4v36-6pr8",
"modified" : "2026-07-30T06:32:28Z",
"published" : "2026-01-13T18:31:04Z",
"aliases" : [ "CVE-2025-68815" ],
"details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: ets: Remove drr class from the active list if it changes to strict\n\nWhenever a user issues an ets qdisc change command, transforming a\ndrr class into a strict one, the ets code isn't checking whether that\nclass was in the active list and removing it. This means that, if a\nuser changes a strict class (which was in the active list) back to a drr\none, that class will be added twice to the active list [1].\n\nDoing so with the following commands:\n\ntc qdisc add dev lo root handle 1: ets bands 2 strict 1\ntc qdisc add dev lo parent 1:2 handle 20: \\\n tbf rate 8bit burst 100b latency 1s\ntc filter add dev lo parent 1: basic classid 1:2\nping -c1 -W0.01 -s 56 127.0.0.1\ntc qdisc change dev lo root handle 1: ets bands 2 strict 2\ntc qdisc change dev lo root handle 1: ets bands 2 strict 1\nping -c1 -W0.01 -s 56 127.0.0.1\n\nWill trigger the following splat with list debug turned on:\n\n[ 59.279014][ T365] ------------[ cut here ]------------\n[ 59.279452][ T365] list_add double add: new=ffff88801d60e350, prev=ffff88801d60e350, next=ffff88801d60e2c0.\n[ 59.280153][ T365] WARNING: CPU: 3 PID: 365 at lib/list_debug.c:35 __list_add_valid_or_report+0x17f/0x220\n[ 59.280860][ T365] Modules linked in:\n[ 59.281165][ T365] CPU: 3 UID: 0 PID: 365 Comm: tc Not tainted 6.18.0-rc7-00105-g7e9f13163c13-dirty #239 PREEMPT(voluntary)\n[ 59.281977][ T365] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011\n[ 59.282391][ T365] RIP: 0010:__list_add_valid_or_report+0x17f/0x220\n[ 59.282842][ T365] Code: 89 c6 e8 d4 b7 0d ff 90 0f 0b 90 90 31 c0 e9 31 ff ff ff 90 48 c7 c7 e0 a0 22 9f 48 89 f2 48 89 c1 4c 89 c6 e8 b2 b7 0d ff 90 <0f> 0b 90 90 31 c0 e9 0f ff ff ff 48 89 f7 48 89 44 24 10 4c 89 44\n...\n[ 59.288812][ T365] Call Trace:\n[ 59.289056][ T365] <TASK>\n[ 59.289224][ T365] ? srso_alias_return_thunk+0x5/0xfbef5\n[ 59.289546][ T365] ets_qdisc_change+0xd2b/0x1e80\n[ 59.289891][ T365] ? __lock_acquire+0x7e7/0x1be0\n[ 59.290223][ T365] ? __pfx_ets_qdisc_change+0x10/0x10\n[ 59.290546][ T365] ? srso_alias_return_thunk+0x5/0xfbef5\n[ 59.290898][ T365] ? __mutex_trylock_common+0xda/0x240\n[ 59.291228][ T365] ? __pfx___mutex_trylock_common+0x10/0x10\n[ 59.291655][ T365] ? srso_alias_return_thunk+0x5/0xfbef5\n[ 59.291993][ T365] ? srso_alias_return_thunk+0x5/0xfbef5\n[ 59.292313][ T365] ? trace_contention_end+0xc8/0x110\n[ 59.292656][ T365] ? srso_alias_return_thunk+0x5/0xfbef5\n[ 59.293022][ T365] ? srso_alias_return_thunk+0x5/0xfbef5\n[ 59.293351][ T365] tc_modify_qdisc+0x63a/0x1cf0\n\nFix this by always checking and removing an ets class from the active list\nwhen changing it to strict.\n\n[1] https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/tree/net/sched/sch_ets.c?id=ce052b9402e461a9aded599f5b47e76bc727f7de#n663",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
} ],
"affected" : [ ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-68815"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/02783a37cb1c0a2bd9fcba4ff1b81e6e209c7d87"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/2f125ebe47d6369e562f3cbd9b6227cff51eaf34"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/43d9a530c8c094d137159784e7c951c65f11ec6c"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/58fdce6bc005e964f1dbc3ca716f5fe0f68839a2"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/8067db5c95aab9461d23117679338cd8869831fa"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/b1e125ae425aba9b45252e933ca8df52a843ec70"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/cca2ed931b734fe48139bc6f020e47367346630f"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-416" ],
"severity" : "HIGH",
"github_reviewed" : false,
"github_reviewed_at" : null,
"nvd_published_at" : "2026-01-13T16:16:03Z"
}
}