CVE-2026-11824: SQLite before 3.53.2 Heap Buffer Overflow via FTS5 fts5ChunkIterate

highCVSS 7.8CVE-2026-11824

CSIRTS triage

vendor: SQLite product: SQLite Memory corruptionaffected: before 3.53.2

What: This vulnerability involves a heap buffer overflow via the FTS5 fts5ChunkIterate function.
Who is affected: Deployments using SQLite versions before 3.53.2 are affected.
Urgency: Remediation is high urgency due to the high severity rating and potential for exploitation.
Action: Upgrade to SQLite version 3.53.2 or later.

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

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: high — CVSS 7.8
Published: 2026-06-09
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-11824

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-2026-118240.18% 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-2026-11824	coverage & exploitation status	NVD · CVE.org

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