High 7.8Published Jun 9, 2026

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

Updated under an hour ago (Oct 27, 2026, 10:00 PM ET)

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It affects SQLite and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for SQLite

Exploited in the last 30 days

SQLite before 3.53.2 contains a heap-based buffer overflow vulnerability in the FTS5 full-text search extension that allows attackers to cause a crash or execute arbitrary code by supplying a crafted database with malicious continuation page metadata specifying a szLeaf value smaller than 4. Attackers can trigger an integer underflow in fts5ChunkIterate() causing an inflated remaining byte count during FTS5 MATCH query processing, leading to a heap buffer overflow of attacker-controlled data in applications compiled with SQLITE_ENABLE_FTS5.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-122
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Modified
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

SQLite SQLite sqlite:sqlite (from the name)	before 3.53.2	CNA record
Siemens RUGGEDCOM CROSSBOW Station Access Controller (SAC) siemens:ruggedcom_crossbow_station_access_controller_sac (from the name)	before V6.0	CISA ADP
sqlite sqlite sqlite:sqlite	before 3.53.2	NVD

References

References

https://sqlite.org/src/info/061febcf41ca	patch, issue-tracking
https://sqlite.org/src/info/4a5ad516ea93	patch, issue-tracking
https://sqlite.org/releaselog/3_53_2.html	release-notes
https://www.vulncheck.com/advisories/sqlite-before-heap-buffer-overflow-via-fts5-fts5chunkiterate	third-party-advisory
https://cert-portal.siemens.com/productcert/html/ssa-765416.html

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.