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CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from Vendor (VulnCheck) · only source for this CVE.
CVSS VectorVendor: VulnCheck
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
5DescriptionCVE.org
SQLite before 3.53.2 contains memory corruption vulnerabilities in the FTS5 full-text search extension that allow attackers to cause process crashes, memory exhaustion, or arbitrary code execution by supplying a crafted database with malformed FTS5 page data. Attackers can trigger an out-of-bounds read in fts5LeafSeek() via an attacker-controlled loop bound and a heap buffer overflow write in fts5ChunkIterate() through a crafted continuation page causing an integer underflow, exploitable when an FTS5 MATCH query is executed against the malicious database.
AnalysisAI
Memory corruption in SQLite versions before 3.53.2 enables attackers to crash processes, exhaust memory, or potentially execute arbitrary code by supplying a crafted database that triggers flaws in the FTS5 full-text search extension when a MATCH query runs. The CVSS 4.0 vector indicates local attack vector with passive user interaction required, and no public exploit identified at time of analysis. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the target application to (1) link a SQLite build with FTS5 compiled in (the upstream default), (2) open an attacker-supplied or attacker-tampered database file, and (3) execute an FTS5 MATCH query against the malicious FTS5 index - typically via normal application logic that searches the opened database. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score of 8.5 reflects local attack vector (AV:L) with low complexity, no privileges, and passive user interaction (UI:P) leading to high confidentiality, integrity, and availability impact on the vulnerable component. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker crafts a malicious SQLite database file containing malformed FTS5 segment pages and delivers it via email attachment, file share, sync service, or download. When a user opens the file in an application that runs an FTS5 MATCH query against the embedded index - for example a desktop mail client, password manager, browser profile import, or forensic tool - the integer underflow in fts5ChunkIterate() corrupts the heap and may be steered toward arbitrary code execution in the application's process. … |
| Remediation | Vendor-released patch: SQLite 3.53.2; upgrade the SQLite library used by the application or operating system to 3.53.2 or later, referencing the upstream commits at https://sqlite.org/src/info/061febcf41ca and https://sqlite.org/src/info/4a5ad516ea93 and the release notes at https://sqlite.org/releaselog/3_53_2.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Audit all production systems and applications to identify SQLite deployments with FTS5 extension enabled. …
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-35794
GHSA-6qj8-gw6p-hc5p