CVE-2019-9937: sqlite NULL Pointer Dereference
Vulnerability summary
CVE-2019-9937 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in sqlite. EPSS estimates a 6.14% chance of exploitation in the next 30 days, higher than 93.4% of scored vulnerabilities.
Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 6% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 6 · Related 4Timeline
- 22-03-2019PublishedVulnerability first disclosed.
- 02-11-2026Last modifiedVulnerability information updated.
Description
In SQLite 3.27.2, interleaving reads and writes in a single transaction with an fts5 virtual table will lead to a NULL Pointer Dereference in fts5ChunkIterate in sqlite3.c. This is related to ext/fts5/fts5_hash.c and ext/fts5/fts5_index.c.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
6.14%
Chance of exploitation in the next 30 days
Percentile
93%
Versus all other CVEs
30-day change
Increase +0.13 pp
From 6.01% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- sqlite3< 3.27.2-2
Sqlite1 product
- sqlite3.27.2
Ubuntu1 product
- sqlite3< 3.11.0-1ubuntu1.2 | < 3.22.0-1ubuntu0.1
3 vendors · 3 products
References
20 linksShow all 20 references
- www.oracle.com/security-alerts/cpujan2020.htmlX Refsource MISC
