How severe is CVE-2026-11824?

CVE-2026-11824 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-11824 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-11824?

CVE-2026-11824 affects Sqlite. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-11824?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-11824 have an EU (EUVD) identifier?

Yes. CVE-2026-11824 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35801.

When was CVE-2026-11824 published?

CVE-2026-11824 was published on 2026-06-09 and last updated on 2026-06-17.

CVE-2026-11824

CVE-2026-11824 is a high-severity vulnerability in Sqlite with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-122.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v4: 8.5
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-35801
Weakness: CWE-122
Affected product: Sqlite
Published: 2026-06-09
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-11824?: 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.
How severe is CVE-2026-11824?: CVE-2026-11824 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-11824 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-11824?: CVE-2026-11824 affects Sqlite. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-11824?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-11824 have an EU (EUVD) identifier?: Yes. CVE-2026-11824 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35801.
When was CVE-2026-11824 published?: CVE-2026-11824 was published on 2026-06-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sqlite:sqlite:*:*:*:*:*:*:*:*

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