CVE-2026-53362: ipv6: account for fraggap on the paged allocation path

highCVSS 7.3CVE-2026-53362

CSIRTS triage

Other

What: This vulnerability relates to the handling of fraggap on the paged allocation path in IPv6.
Who is affected: Systems utilizing the affected IPv6 implementation are at risk.
Urgency: This is a high severity issue with a CVSS score of 7.3, indicating urgent remediation is recommended.
Action: Apply relevant patches or updates as they become available.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: high — CVSS 7.3
Published: 2026-07-02
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-53362

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-533620.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-53362	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

medium[NEW] [medium] Linux Kernel: Multiple vulnerabilitiescert-bund
unknownMultiple vulnerabilities in Microsoft Azure Linux (July 09, 2026)cert-fr-avis
unknownDSA-6381-1 linux - security updatedebian
unknownCVE-2026-53362: In the Linux kernel, the following vulnerability has been resolved: ipv6: account for fraggap …nvd

Recent advisories for ipv6

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

highCVE-2026-49213: TypeBot is a chatbot builder tool. Prior to 3.17.2, Typebot's shared SSRF validator in package…nvd · 2026-07-10
unknownCVE-2026-0280: An IPv6 packet processing vulnerability in the dataplane of Palo Alto Networks PAN-OS® software…nvd · 2026-07-09
mediumGHSA-m5x5-28jr-gpjj: pyLoad: SSRF guard bypass via IPv6 6to4/NAT64 transition wrappers of internal IPsghsa · 2026-07-09
lowCVE-2026-0280 PAN-OS: IPv6 Firewall Policy Bypass (Severity: LOW)paloalto · 2026-07-08
highGHSA-794r-5rp2-fpg8: flyto-core has SSRF guard bypass via IPv6 transition addresses (IPv4-mapped / 6to4 / NAT6…ghsa · 2026-07-06
unknownCVE-2026-53362: In the Linux kernel, the following vulnerability has been resolved: ipv6: account for fraggap …nvd · 2026-07-04