CVE-2025-68785: Software Security Vulnerability Vulnerability

HIGH

Advisory Identifier: GHSA-fj9x-7f49-3p3c

CVSS 7.1

Published 2026-01-13

Advisory Summary

CVE-2025-68785 is a HIGH (CVSS 7.1) security vulnerability vulnerability (CWE-125: Out-of-bounds Read) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product reads data past the end, or before the beginning, of the intended buffer.. Remediation is available in the latest vendor maintenance releases.

CVE-2025-68785 at a Glance

CVE Identifier CVE-2025-68785

GHSA Identifier GHSA-fj9x-7f49-3p3c

Severity HIGH

CVSS v3.1 Base Score 7.1

CWE Classification CWE-125: Out-of-bounds Read

Affected Product Software

Package Ecosystem Maven

Published Date 2026-01-13

Last Updated 2026-07-30

Security Impact

CVSS: 7.1

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: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 High (C:H)

Integrity None (I:N)

Availability High (A:H)

How to Fix CVE-2025-68785

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-2025-68785, 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-125: Out-of-bounds Read, where the product reads data past the end, or before the beginning, of the intended buffer. 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: net: openvswitch: fix middle attribute validation in push_nsh() action The push_nsh() action structure looks like this: OVS_ACTION_ATTR_PUSH_NSH(OVS_KEY_ATTR_NSH(OVS_NSH_KEY_ATTR_BASE,...)) The outermost OVS_ACTION_ATTR_PUSH_NSH attribute is OK'ed by the nla_for_each_nested() inside __ovs_nla_copy_actions(). The innermost OVS_NSH_KEY_ATTR_BASE/MD1/MD2 are OK'ed by the nla_for_each_nested() inside nsh_key_put_from_nlattr(). But nothing checks if the attribute in the middle is OK. We don't even check that this attribute is the OVS_KEY_ATTR_NSH. We just do a double unwrap with a pair of nla_data() calls - first time directly while calling validate_push_nsh() and the second time as part of the nla_for_each_nested() macro, which isn't safe, potentially causing invalid memory access if the size of this attribute is incorrect. The failure may not be noticed during validation due to larger netlink buffer, but cause trouble later during action execution where the buffer is allocated exactly to the size: BUG: KASAN: slab-out-of-bounds in nsh_hdr_from_nlattr+0x1dd/0x6a0 [openvswitch] Read of size 184 at addr ffff88816459a634 by task a.out/22624 CPU: 8 UID: 0 PID: 22624 6.18.0-rc7+ #115 PREEMPT(voluntary) Call Trace: <TASK> dump_stack_lvl+0x51/0x70 print_address_description.constprop.0+0x2c/0x390 kasan_report+0xdd/0x110 kasan_check_range+0x35/0x1b0 __asan_memcpy+0x20/0x60 nsh_hdr_from_nlattr+0x1dd/0x6a0 [openvswitch] push_nsh+0x82/0x120 [openvswitch] do_execute_actions+0x1405/0x2840 [openvswitch] ovs_execute_actions+0xd5/0x3b0 [openvswitch] ovs_packet_cmd_execute+0x949/0xdb0 [openvswitch] genl_family_rcv_msg_doit+0x1d6/0x2b0 genl_family_rcv_msg+0x336/0x580 genl_rcv_msg+0x9f/0x130 netlink_rcv_skb+0x11f/0x370 genl_rcv+0x24/0x40 netlink_unicast+0x73e/0xaa0 netlink_sendmsg+0x744/0xbf0 __sys_sendto+0x3d6/0x450 do_syscall_64+0x79/0x2c0 entry_SYSCALL_64_after_hwframe+0x76/0x7e </TASK> Let's add some checks that the attribute is properly sized and it's the only one attribute inside the action. Technically, there is no real reason for OVS_KEY_ATTR_NSH to be there, as we know that we're pushing an NSH header already, it just creates extra nesting, but that's how uAPI works today. So, keeping as it is.

References

NVD — CVE-2025-68785 NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-68785

git.kernel.org/stable/c/10ffc55824... WEB

https://git.kernel.org/stable/c/10ffc558246f2c75619aedda0921906095e46702

git.kernel.org/stable/c/1b569db9c2... WEB

https://git.kernel.org/stable/c/1b569db9c2f28b599e40050524aae5f7332bc294

git.kernel.org/stable/c/2ecfc4433a... WEB

https://git.kernel.org/stable/c/2ecfc4433acdb149eafd7fb22d7fd4adf90b25e9

git.kernel.org/stable/c/3bc2efff20... WEB

https://git.kernel.org/stable/c/3bc2efff20a38b2c7ca18317649715df0dd62ced

git.kernel.org/stable/c/5ace7ef87f... WEB

https://git.kernel.org/stable/c/5ace7ef87f059d68b5f50837ef3e8a1a4870c36e

git.kernel.org/stable/c/c999153bfb... WEB

https://git.kernel.org/stable/c/c999153bfb2d1d9b295b7010d920f2a7c6d7595f

git.kernel.org/stable/c/d0c135b8bb... WEB

https://git.kernel.org/stable/c/d0c135b8bbbcf92836068fd395bebeb7ae6c7bef

Frequently Asked Questions

What is CVE-2025-68785?

CVE-2025-68785 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-125: Out-of-bounds Read.

Which Software versions are affected?

Affected versions include releases prior to current release patches.

What version fixes CVE-2025-68785?

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

What is the CVSS score of CVE-2025-68785?

CVE-2025-68785 has a CVSS v3.1 base score of 7.1 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

What CWE is associated with CVE-2025-68785?

CVE-2025-68785 is classified under CWE-125: Out-of-bounds Read (The product reads data past the end, or before the beginning, of the intended buffer.).

How can I check Maven dependencies for CVE-2025-68785?

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-fj9x-7f49-3p3c",
  "modified" : "2026-07-30T06:32:27Z",
  "published" : "2026-01-13T18:31:03Z",
  "aliases" : [ "CVE-2025-68785" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: openvswitch: fix middle attribute validation in push_nsh() action\n\nThe push_nsh() action structure looks like this:\n\n OVS_ACTION_ATTR_PUSH_NSH(OVS_KEY_ATTR_NSH(OVS_NSH_KEY_ATTR_BASE,...))\n\nThe outermost OVS_ACTION_ATTR_PUSH_NSH attribute is OK'ed by the\nnla_for_each_nested() inside __ovs_nla_copy_actions().  The innermost\nOVS_NSH_KEY_ATTR_BASE/MD1/MD2 are OK'ed by the nla_for_each_nested()\ninside nsh_key_put_from_nlattr().  But nothing checks if the attribute\nin the middle is OK.  We don't even check that this attribute is the\nOVS_KEY_ATTR_NSH.  We just do a double unwrap with a pair of nla_data()\ncalls - first time directly while calling validate_push_nsh() and the\nsecond time as part of the nla_for_each_nested() macro, which isn't\nsafe, potentially causing invalid memory access if the size of this\nattribute is incorrect.  The failure may not be noticed during\nvalidation due to larger netlink buffer, but cause trouble later during\naction execution where the buffer is allocated exactly to the size:\n\n BUG: KASAN: slab-out-of-bounds in nsh_hdr_from_nlattr+0x1dd/0x6a0 [openvswitch]\n Read of size 184 at addr ffff88816459a634 by task a.out/22624\n\n CPU: 8 UID: 0 PID: 22624 6.18.0-rc7+ #115 PREEMPT(voluntary)\n Call Trace:\n  <TASK>\n  dump_stack_lvl+0x51/0x70\n  print_address_description.constprop.0+0x2c/0x390\n  kasan_report+0xdd/0x110\n  kasan_check_range+0x35/0x1b0\n  __asan_memcpy+0x20/0x60\n  nsh_hdr_from_nlattr+0x1dd/0x6a0 [openvswitch]\n  push_nsh+0x82/0x120 [openvswitch]\n  do_execute_actions+0x1405/0x2840 [openvswitch]\n  ovs_execute_actions+0xd5/0x3b0 [openvswitch]\n  ovs_packet_cmd_execute+0x949/0xdb0 [openvswitch]\n  genl_family_rcv_msg_doit+0x1d6/0x2b0\n  genl_family_rcv_msg+0x336/0x580\n  genl_rcv_msg+0x9f/0x130\n  netlink_rcv_skb+0x11f/0x370\n  genl_rcv+0x24/0x40\n  netlink_unicast+0x73e/0xaa0\n  netlink_sendmsg+0x744/0xbf0\n  __sys_sendto+0x3d6/0x450\n  do_syscall_64+0x79/0x2c0\n  entry_SYSCALL_64_after_hwframe+0x76/0x7e\n  </TASK>\n\nLet's add some checks that the attribute is properly sized and it's\nthe only one attribute inside the action.  Technically, there is no\nreal reason for OVS_KEY_ATTR_NSH to be there, as we know that we're\npushing an NSH header already, it just creates extra nesting, but\nthat's how uAPI works today.  So, keeping as it is.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-68785"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/10ffc558246f2c75619aedda0921906095e46702"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1b569db9c2f28b599e40050524aae5f7332bc294"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2ecfc4433acdb149eafd7fb22d7fd4adf90b25e9"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3bc2efff20a38b2c7ca18317649715df0dd62ced"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5ace7ef87f059d68b5f50837ef3e8a1a4870c36e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c999153bfb2d1d9b295b7010d920f2a7c6d7595f"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d0c135b8bbbcf92836068fd395bebeb7ae6c7bef"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-125" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-01-13T16:15:58Z"
  }
}

CVSS V3

7.1 HIGH