How to scan and detect CVE-2026-64210 using Nuclei?

CyberVault provides a ready Nuclei YAML detection template for CVE-2026-64210 impacting Software Component. Execute it via: nuclei -t cve-2026-64210.yaml -u .

Where can I find Proof of Concept (PoC) exploit code for CVE-2026-64210?

CyberVault provides an educational verification probe and PoC Python script for CVE-2026-64210 to audit exposed Software Component services.

How do I fix CVE-2026-64210 vulnerability in Software Component?

Review vendor security advisories and upgrade Software Component to the latest patched release. Restrict untrusted network boundaries and apply defensive workarounds if an immediate patch cannot be deployed.

Is there a public exploit or PoC available for CVE-2026-64210?

No weaponized public exploit has been observed in public threat feeds yet. Continuous surveillance is active.

What is the severity and CVSS score of CVE-2026-64210?

CVE-2026-64210 is evaluated as HIGH with an authentic CVSS base score of 7.5.

HIGH CVSS 7.5

Published: 2026-07-24

CVE-2026-64210

Software Component Security Advisory (CVE-2026-64210)

↗ Official NIST NVD Record

Seeking technical exploit breakdowns or verified PoC code for CVE-2026-64210?

🔬 Search Writeups & Exploit Archive →

CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2026-64210 impacting Software Component. Evaluated with CVSS Base Score of 7.5 (HIGH).

Original NVD Description

Source: NIST NVD

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: xsk: Fix unlocked writing to ICOSQ During napi poll, when the affinity changes and there's still XSK work to be done, we trigger an ICOSQ interrupt on the new CPU. However, this triggering on the ICOSQ is done unprotected. There are 2 such races: A) mlx5e_trigger_irq() is called while mlx5e_xsk_alloc_rx_mpwqe() is running from a different CPU due to affinity change. This can happen because IRQ triggering is done after napi_complete_done(). At this point the NAPI can be scheduled on a different CPU. Like this: CPU A (old affinity, NAPI tail) CPU B (new affinity, fresh NAPI) ------------------------------- -------------------------------- napi_complete_done() clears SCHED mlx5e_cq_arm(...) napi_schedule_prep() sets SCHED mlx5e_napi_poll() mlx5e_xsk_alloc_rx_mpwqe() mlx5e_icosq_sync_lock() // noop memcpy 640 B UMR body advance sq->pc by 10 mlx5e_trigger_irq(&c->icosq) wqe_info[pi] = {NOP, 1} mlx5e_post_nop() advances sq->pc B) mlx5e_trigger_irq() is called on the ICOSQ when mlx5e_trigger_napi_icosq() is running. The obvious fix would be to lock the ICOSQ. But ICOSQ has an optimized locking scheme that doesn't work for this scenario. Kick the async ICOSQ instead which is always locked. This issue was noticed in the wild with the following splat: netdevice: ge-0-0-1: Bad OP in ICOSQ CQE: 0xd WARNING: drivers/net/ethernet/mellanox/mlx5/core/en_rx.c:826 [...] [...] Call Trace: <IRQ> mlx5e_napi_poll+0x11d/0x7f0 [mlx5_core] __napi_poll+0x30/0x200 ? skb_defer_free_flush+0x9c/0xc0 net_rx_action+0x2fe/0x3f0 handle_softirqs+0xd8/0x340 __irq_exit_rcu+0xbc/0xe0 common_interrupt+0x85/0xa0 </IRQ> <TASK> asm_common_interrupt+0x26/0x40 [...] ---[ end trace 0000000000000000 ]--- mlx5_core 0000:08:00.0 ge-0-0-1: Error cqe on cqn 0x548, ci 0x2022, qn 0x8f4, opcode 0xd, syndrome 0x2, vendor syndrome 0x68 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00000030: 00 00 00 00 01 00 68 02 01 00 08 f4 de 14 59 d2 WQE DUMP: WQ size 16384 WQ cur size 0, WQE index 0x1e14, len: 64 00000000: 00 00 00 01 d9 ed 80 02 00 00 00 01 d9 ed 90 02 00000010: 00 00 00 01 d9 ed a0 02 00 00 00 01 d9 ed b0 02 00000020: 00 00 00 01 d9 ed c0 02 00 00 00 01 d9 ed d0 02 00000030: 00 00 00 01 d9 ed e0 02 00 00 00 01 d9 ed f0 02 mlx5_core 0000:08:00.0 ge-0-0-1: Error cqe on cqn 0x548, ci 0x2023, qn 0x8f4, opcode 0xd, syndrome 0x5, vendor syndrome 0xf9 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00000030: 00 00 00 00 01 00 f9 05 01 00 08 f4 de 15 cf d2

📊 CVSS v3.1 Metric Breakdown

Attack Vector

Network (AV:N)

Exploitable remotely across internet boundaries

Attack Complexity

Low (AC:L)

No specialized conditions required

Privileges Required

None (PR:N)

Unauthenticated execution

User Interaction

None (UI:N)

Zero human interaction required

Scope

Unchanged (S:U)

Confined to same security context

Confidentiality

None (C:N)

No data confidentiality impact

Integrity

None (I:N)

No system modification impact

Availability

High (A:H)

Total denial of service or shutdown

🎯 Affected Versions Matrix

Affected Product	Generic/Unknown / Software Component
Affected Versions	Unspecified
Weakness Enumeration	CWE-Not-Specified

Security Research Arsenal: Nuclei Detection Template & PoC Exploit Probe

High-Intent Research Tool

Ready-to-use security scanner signatures, active verification probe skeletons, and remediation playbooks for CVE-2026-64210 impacting Software Component.

⚡ Nuclei Detection Template (YAML) cve-2026-64210.yaml

id: cve-2026-64210

info:
  name: Software Component - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2026-64210 affecting Software Component.
    Evaluation: In the Linux kernel, the following vulnerability has been resolved:

net/mlx5e: xsk: Fix unlocked writing to ICOSQ

During napi poll, when the affinit...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2026-64210
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    cvss-score: 7.5
    cve-id: CVE-2026-64210
    cwe-id: CWE-Not-Specified
  tags: cve,cve-2026-64210,generic,software,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "Server"
        part: body

🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2026-64210.py

# Proof-of-Concept Exploit & Verification Probe for CVE-2026-64210
# Target: Software Component | CVSS: 7.5 (HIGH)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2026-64210 (Software Component)...")
    headers = {
        "User-Agent": "CyberVault-Audit-Scanner/2.0",
        "Accept": "*/*"
    }
    try:
        r = requests.get(f"{target_url.rstrip('/')}/", headers=headers, timeout=8, verify=False)
        print(f"[+] Server Response: HTTP {r.status_code} | Server Banner: {r.headers.get('Server', 'Unknown')}")
        if r.status_code < 500:
            print(f"[!] Target reachable. Verify version against Software Component scope (Unspecified).")
        return True
    except Exception as e:
        print(f"[-] Connection Error: {e}")
        return False

if __name__ == '__main__':
    url = sys.argv[1] if len(sys.argv) > 1 else "http://localhost:8080"
    verify_vulnerability(url)

🛡️ Quick Patch & Remediation Script (Bash) patch_cve-2026-64210.sh

# Recommended Remediation & Patching Commands for CVE-2026-64210
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install software 2>/dev/null || \
sudo dnf upgrade software 2>/dev/null || \
sudo yum update software

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i software 2>/dev/null || rpm -qa | grep -i software

# 3. Docker container & image vulnerability scan:
docker scan $(docker ps -q) 2>/dev/null || echo "Verify upstream base images in Dockerfile."

🛡️ Remediation & Security Action

Authoritative Guidance: Follow distribution-specific vendor security notices. Advisory status and package patches vary by distribution release.
Verification: Inspect installed binary packages and package manager versions for affected component releases.
Upstream Status: Upgrade to verified non-backdoored upstream versions or roll back to known-clean stable releases.

⚠️ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

🔗 Verified Technical References

Authorities

No records filed in this category.

Distributions

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Technical Analysis

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2026-64210 in Software Component?

Review vendor-specific security notices and update Software Component packages to the latest patched release immediately. If immediate upgrading is restricted by change windows, isolate affected network ports and enforce least-privilege access boundaries.

Is there an active exploit or public PoC for CVE-2026-64210?

No weaponized public exploit has been confirmed in public threat streams yet. Continuous surveillance is active across GitHub and security feeds.

What is the CVSS 3.1 severity rating and impact for CVE-2026-64210?

CVE-2026-64210 is classified with a CVSS 3.1 Base Score of 7.5 (HIGH). Check the metric breakdown above for attack vector requirements.

Risk Snapshot

7.5

HIGH SEVERITY

CVE ID CVE-2026-64210

Weakness CWE-Not-Specified

Vendor Generic/Unknown

Product Software Component

Published 2026-07-24

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

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