CVE-2025-68813: Software Security Vulnerability Vulnerability

UNKNOWN

Advisory Identifier: GHSA-r9w6-9rjj-r9c5

CWE-476

Published 2026-01-13

Advisory Summary

CVE-2025-68813 is a security vulnerability vulnerability (CWE-476: NULL Pointer Dereference) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product dereferences a pointer that it expects to be valid but is null.. Remediation is available in the latest vendor maintenance releases.

CVE-2025-68813 at a Glance

CVE Identifier CVE-2025-68813

GHSA Identifier GHSA-r9w6-9rjj-r9c5

Severity N/A

CVSS v3.1 Base Score N/A

CWE Classification CWE-476: NULL Pointer Dereference

Affected Product Software

Package Ecosystem Maven

Published Date 2026-01-13

Last Updated 2026-10-19

How to Fix CVE-2025-68813

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-2025-68813, 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-476: NULL Pointer Dereference, where the product dereferences a pointer that it expects to be valid but is null. 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: ipvs: fix ipv4 null-ptr-deref in route error path The IPv4 code path in __ip_vs_get_out_rt() calls dst_link_failure() without ensuring skb->dev is set, leading to a NULL pointer dereference in fib_compute_spec_dst() when ipv4_link_failure() attempts to send ICMP destination unreachable messages. The issue emerged after commit ed0de45a1008 ("ipv4: recompile ip options in ipv4_link_failure") started calling __ip_options_compile() from ipv4_link_failure(). This code path eventually calls fib_compute_spec_dst() which dereferences skb->dev. An attempt was made to fix the NULL skb->dev dereference in commit 0113d9c9d1cc ("ipv4: fix null-deref in ipv4_link_failure"), but it only addressed the immediate dev_net(skb->dev) dereference by using a fallback device. The fix was incomplete because fib_compute_spec_dst() later in the call chain still accesses skb->dev directly, which remains NULL when IPVS calls dst_link_failure(). The crash occurs when: 1. IPVS processes a packet in NAT mode with a misconfigured destination 2. Route lookup fails in __ip_vs_get_out_rt() before establishing a route 3. The error path calls dst_link_failure(skb) with skb->dev == NULL 4. ipv4_link_failure() → ipv4_send_dest_unreach() → __ip_options_compile() → fib_compute_spec_dst() 5. fib_compute_spec_dst() dereferences NULL skb->dev Apply the same fix used for IPv6 in commit 326bf17ea5d4 ("ipvs: fix ipv6 route unreach panic"): set skb->dev from skb_dst(skb)->dev before calling dst_link_failure(). KASAN: null-ptr-deref in range [0x0000000000000328-0x000000000000032f] CPU: 1 PID: 12732 Comm: syz.1.3469 Not tainted 6.6.114 #2 RIP: 0010:__in_dev_get_rcu include/linux/inetdevice.h:233 RIP: 0010:fib_compute_spec_dst+0x17a/0x9f0 net/ipv4/fib_frontend.c:285 Call Trace: <TASK> spec_dst_fill net/ipv4/ip_options.c:232 spec_dst_fill net/ipv4/ip_options.c:229 __ip_options_compile+0x13a1/0x17d0 net/ipv4/ip_options.c:330 ipv4_send_dest_unreach net/ipv4/route.c:1252 ipv4_link_failure+0x702/0xb80 net/ipv4/route.c:1265 dst_link_failure include/net/dst.h:437 __ip_vs_get_out_rt+0x15fd/0x19e0 net/netfilter/ipvs/ip_vs_xmit.c:412 ip_vs_nat_xmit+0x1d8/0xc80 net/netfilter/ipvs/ip_vs_xmit.c:764

References

NVD — CVE-2025-68813 NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-68813

git.kernel.org/stable/c/25ab24df31... WEB

https://git.kernel.org/stable/c/25ab24df31f7af843c96a38e0781b9165216e1a8

git.kernel.org/stable/c/312d7cd888... WEB

https://git.kernel.org/stable/c/312d7cd88882fc6cadcc08b02287497aaaf94bcd

git.kernel.org/stable/c/4729ff0581... WEB

https://git.kernel.org/stable/c/4729ff0581fbb7ad098b6153b76b6f5aac94618a

git.kernel.org/stable/c/689a627d14... WEB

https://git.kernel.org/stable/c/689a627d14788ad772e0fa24c2e57a23dbc7ce90

git.kernel.org/stable/c/ad891bb3d0... WEB

https://git.kernel.org/stable/c/ad891bb3d079a46a821bf2b8867854645191bab0

git.kernel.org/stable/c/cdeff10851... WEB

https://git.kernel.org/stable/c/cdeff10851c37a002d87a035818ebd60fdb74447

git.kernel.org/stable/c/dd72a93c80... WEB

https://git.kernel.org/stable/c/dd72a93c80408f06327dd2d956eb1a656d0b5903

Frequently Asked Questions

What is CVE-2025-68813?

CVE-2025-68813 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-476: NULL Pointer Dereference.

Which Software versions are affected?

Affected versions include releases prior to current release patches.

What version fixes CVE-2025-68813?

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

What CWE is associated with CVE-2025-68813?

CVE-2025-68813 is classified under CWE-476: NULL Pointer Dereference (The product dereferences a pointer that it expects to be valid but is NULL.).

How can I check Maven dependencies for CVE-2025-68813?

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-r9w6-9rjj-r9c5",
  "modified" : "2026-10-19T21:33:04Z",
  "published" : "2026-01-13T18:31:04Z",
  "aliases" : [ "CVE-2025-68813" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nipvs: fix ipv4 null-ptr-deref in route error path\n\nThe IPv4 code path in __ip_vs_get_out_rt() calls dst_link_failure()\nwithout ensuring skb->dev is set, leading to a NULL pointer dereference\nin fib_compute_spec_dst() when ipv4_link_failure() attempts to send\nICMP destination unreachable messages.\n\nThe issue emerged after commit ed0de45a1008 (\"ipv4: recompile ip options\nin ipv4_link_failure\") started calling __ip_options_compile() from\nipv4_link_failure(). This code path eventually calls fib_compute_spec_dst()\nwhich dereferences skb->dev. An attempt was made to fix the NULL skb->dev\ndereference in commit 0113d9c9d1cc (\"ipv4: fix null-deref in\nipv4_link_failure\"), but it only addressed the immediate dev_net(skb->dev)\ndereference by using a fallback device. The fix was incomplete because\nfib_compute_spec_dst() later in the call chain still accesses skb->dev\ndirectly, which remains NULL when IPVS calls dst_link_failure().\n\nThe crash occurs when:\n1. IPVS processes a packet in NAT mode with a misconfigured destination\n2. Route lookup fails in __ip_vs_get_out_rt() before establishing a route\n3. The error path calls dst_link_failure(skb) with skb->dev == NULL\n4. ipv4_link_failure() → ipv4_send_dest_unreach() →\n   __ip_options_compile() → fib_compute_spec_dst()\n5. fib_compute_spec_dst() dereferences NULL skb->dev\n\nApply the same fix used for IPv6 in commit 326bf17ea5d4 (\"ipvs: fix\nipv6 route unreach panic\"): set skb->dev from skb_dst(skb)->dev before\ncalling dst_link_failure().\n\nKASAN: null-ptr-deref in range [0x0000000000000328-0x000000000000032f]\nCPU: 1 PID: 12732 Comm: syz.1.3469 Not tainted 6.6.114 #2\nRIP: 0010:__in_dev_get_rcu include/linux/inetdevice.h:233\nRIP: 0010:fib_compute_spec_dst+0x17a/0x9f0 net/ipv4/fib_frontend.c:285\nCall Trace:\n  <TASK>\n  spec_dst_fill net/ipv4/ip_options.c:232\n  spec_dst_fill net/ipv4/ip_options.c:229\n  __ip_options_compile+0x13a1/0x17d0 net/ipv4/ip_options.c:330\n  ipv4_send_dest_unreach net/ipv4/route.c:1252\n  ipv4_link_failure+0x702/0xb80 net/ipv4/route.c:1265\n  dst_link_failure include/net/dst.h:437\n  __ip_vs_get_out_rt+0x15fd/0x19e0 net/netfilter/ipvs/ip_vs_xmit.c:412\n  ip_vs_nat_xmit+0x1d8/0xc80 net/netfilter/ipvs/ip_vs_xmit.c:764",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-68813"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/25ab24df31f7af843c96a38e0781b9165216e1a8"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/312d7cd88882fc6cadcc08b02287497aaaf94bcd"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/4729ff0581fbb7ad098b6153b76b6f5aac94618a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/689a627d14788ad772e0fa24c2e57a23dbc7ce90"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ad891bb3d079a46a821bf2b8867854645191bab0"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/cdeff10851c37a002d87a035818ebd60fdb74447"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/dd72a93c80408f06327dd2d956eb1a656d0b5903"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-476" ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-01-13T16:16:03Z"
  }
}

Advisory Metadata

Source ID: GHSA-r9w6-9rjj-r9c5
Schema Version: 1.4.0
Published: 2026-01-13 18:31
Last Modified: 2026-10-19 21:33
Database Record File: advisories/unreviewed/2026/01/GHSA-r9w6-9rjj-r9c5/GHSA-r9w6-9rjj-r9c5.json