CVE-2020-13630

Incorrect FTS3 snippet output via use-after-free

Published May 27, 2020 · Updated Aug 4, 2024

Use-after-free in SQLite before 3.32.0 allows attackers to obtain incorrect FTS3 snippet() output through crafted SQL expressions. During a full-text query, fts3SnippetAdvance uses a SegReader object after sqlite3Fts3SegReaderFree releases it. Reachability requires control of SQL expressions that invoke snippet() on FTS3 tables; SQLite reports no known data exfiltration or crash.

CVSS severity7.0
High
EPSS probability1.03%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in SQLite before 3.32.0 allows attackers to obtain incorrect FTS3 snippet() output through crafted SQL expressions. During a full-text query, fts3SnippetAdvance uses a SegReader object after sqlite3Fts3SegReaderFree releases it. Reachability requires control of SQL expressions that invoke snippet() on FTS3 tables; SQLite reports no known data exfiltration or crash.

The record

CVE
CVE-2020-13630
Published
May 27, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-416
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. May 27, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.4NIST NVDAV:L/AC:M/Au:N/C:P/I:P/A:P
7.0NIST NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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