CVE-2026-53036
CSIRTS triage
- What
- There is an off-by-one error in the signed range check in bpf for arm64.
- Who is affected
- Deployments using bpf on arm64 architecture.
- Urgency
- Remediation is critical urgency due to the critical severity rating.
- Action
- Apply the patch for bpf to fix the off-by-one error.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.
Advisory coverage (1)
- criticalCVE-2026-53036: bpf, arm64: Fix off-by-one in check_imm signed range checkmsrc · 2026-06-09
External references
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[](https://www.csirts.com/cve/CVE-2026-53036)