CVE-2026-63913 - Vulnerability Details

Threat entity extracted from intelligence sources

Frequency
4
occurrences
First Seen
August 6, 2026
Last Seen
August 7, 2026

CVE-2026-63913 is a vulnerability tracked by ThreatCluster, appearing in 1 threat cluster built from 4 intelligence report mentions.

CVE-2026-63913 is a vulnerability tracked across 1 threat cluster and 4 intelligence report mentions on ThreatCluster. First observed August 6, 2026; most recent activity August 7, 2026.

Related Threat Clusters

Recent Intelligence Reports

  • CVE-2026-63913 — www.globenewswire.com · August 7, 2026
  • NatJack exploits put NAT security assumptions to the test at Black Hat — Csoonline · August 6, 2026
  • New NatJack Research Exposes Design Weaknesses Across Major NAT Implementations — Manilatimes · August 6, 2026
  • New NatJack Research Exposes Design Weaknesses Across Major NAT Implementations — Streetinsider · August 6, 2026

Related Entities

DDoS Man-in-the-Middle CVE-2021-34535 CVE-2024-0333 CVE-2026-56181 Azure Kubernetes Service Cisco IOS XE Cisco Secure Firewall Hyper-V Kubernetes Linux MacOS

Frequently asked questions

What is CVE-2026-63913?

CVE-2026-63913 is a vulnerability tracked by ThreatCluster, appearing in 1 threat cluster built from 4 intelligence report mentions.

Is CVE-2026-63913 still active?

The most recent intelligence report mentioning CVE-2026-63913 on ThreatCluster is dated August 7, 2026. Activity was first observed August 6, 2026, giving a tracked span from then to August 7, 2026.

What is CVE-2026-63913 associated with?

Across ThreatCluster reporting, CVE-2026-63913 most frequently co-occurs with DDoS, Man-in-the-Middle, CVE-2021-34535, CVE-2024-0333, CVE-2026-56181, among 12 tracked related entities.

What are the latest developments involving CVE-2026-63913?

The most significant recent cluster is “NatJack Attack Class Exposes Vulnerabilities in NAT Implementations” (10 articles · Updated August 6, 2026). CVE-2026-63913 appears across 1 threat cluster in total, listed above with sources.

How much reporting does ThreatCluster have on CVE-2026-63913?

CVE-2026-63913 appears in 4 intelligence report mentions across 1 deduplicated threat cluster, aggregated from 17,000+ monitored sources.

CVSS v3.1 Breakdown