Exploited vulnerabilities / CVE-2026-53362
Confirmed exploited · privilege escalation · Linux KernelCVE-2026-53362
Linux Kernel privilege escalation, confirmed exploited in the wild.
Linux Kernel contains an unspecified vulnerability that can allow for privilege escalation via IPv6 networking subsystem. This vulnerability can impact multiple products, including but not limited to Suse, Red Hat, and other products using Linux.
| CISA's name for it | Linux Kernel Unspecified Vulnerability |
|---|---|
| Vendor and product | Linux · Kernel |
| Type | privilege escalation · not stated |
| Exploited | Confirmed by CISA listed 27 August 2026 |
| Likelihood | scored lower by EPSS, but already confirmed exploited, which outranks any prediction |
| Deadline | 30 August 2026 · already passed |
| Used in ransomware | Not reported |
| Advisories | git.kernel.org ↗ · git.kernel.org ↗ · git.kernel.org ↗ · git.kernel.org ↗ |
Three steps, in this order
Install the update on every affected system, servers and workstations alike.
Escalation bugs are chained after a first foothold: check for other exposures an attacker could start from.
Review who holds administrative rights, and alert on new ones.
| CISA's required action | Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. |
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Know before someone else finds it
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CVE-2026-53362 in short
Is CVE-2026-53362 being exploited?
Yes. CISA added CVE-2026-53362 to its Known Exploited Vulnerabilities catalogue on 27 August 2026, which it does only on evidence of exploitation in the wild.
What is the CISA deadline for CVE-2026-53362?
US federal agencies must remediate it by 30 August 2026. Everyone else should treat that date as the latest safe point to patch an internet-facing system.
How likely is CVE-2026-53362 to be exploited in the next 30 days?
FIRST's Exploit Prediction Scoring System gives it 0.7%, the 54th percentile of every CVE it scores.
How do I fix CVE-2026-53362?
Install the update on every affected system, servers and workstations alike. Escalation bugs are chained after a first foothold: check for other exposures an attacker could start from. Review who holds administrative rights, and alert on new ones.
Other Linux vulnerabilities being exploited
| CVE | Product | Type | Listed |
|---|---|---|---|
| CVE-2026-46300 | Kernel | exploited vulnerability | 28 October 2026 |
| CVE-2025-39964 | Kernel | exploited vulnerability | 18 September 2026 |
| CVE-2026-53266 | Kernel | memory corruption | 18 September 2026 |
| CVE-2025-39682 | Kernel | exploited vulnerability | 18 September 2026 |
| CVE-2022-0995 | Kernel | privilege escalation | 26 August 2026 |
| CVE-2022-0492 | Kernel | authentication bypass | 2 June 2026 |
Sources: CISA Known Exploited Vulnerabilities catalogue (released 10 November 2026) and FIRST EPSS. Page compiled automatically by SAK T.L.M, the threat-intelligence tool of SAK T.E.C, on 13 November 2026.