CVE-2026-53109: powerpc/pgtable-frag: Fix bad page state in pte_frag_destroy
CSIRTS triage
- What
- A medium severity issue related to bad page state exists in the pte_frag_destroy function of powerpc/pgtable-frag.
- Who is affected
- Deployments using the powerpc/pgtable-frag are affected.
- Urgency
- Remediation is advisable due to the medium severity of the vulnerability.
- Action
- Apply the latest patches to address this issue.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-53109
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-2026-531090.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-53109 | coverage & exploitation status | NVD · CVE.org |
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