CVE-2026-11824SQLite before 3.53.2 Heap Buffer Overflow via FTS5 fts5ChunkIterate
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No exploitation reported and no EPSS estimate yet.
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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 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
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
- https://sqlite.org/src/info/061febcf41capatch, issue-tracking
- https://sqlite.org/src/info/4a5ad516ea93patch, issue-tracking
- https://sqlite.org/releaselog/3_53_2.htmlrelease-notes
- https://www.vulncheck.com/advisories/sqlite-before-heap-buffer-overflow-via-fts5-fts5chunkiteratethird-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.