CVE-2026-53275
CSIRTS triage
- What
- A use-after-free vulnerability exists when processing MLD queries in IPv6 multicast.
- Who is affected
- Deployments using the affected IPv6 multicast functionality are at risk.
- Urgency
- Remediation is urgent due to the high severity and potential for exploitation.
- Action
- Apply the relevant patches for the affected systems.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch CVE-2026-53275
Get an email if CVE-2026-53275 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.
Exploitation outlook
- Low exploitation risk0.25% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 16% of all EPSS-scored CVEs.
Advisory coverage (1)
- highCVE-2026-53275: ipv6: mcast: Fix use-after-free when processing MLD queriesmsrc · 2026-06-09
External references
Embed the live status
— this badge updates automatically when the KEV or exploit status changes. How to embed it →
[](https://www.csirts.com/cve/CVE-2026-53275)