CVE-2020-35525Network attack vector

Application crash via erroneous INTERSECT continuation

Published Sep 1, 2022 · Updated Aug 4, 2024

NULL pointer dereference in SQLite 3.31.1 allows attackers to crash an application by submitting a crafted INTERSECT query. During compound SELECT handling in src/select.c, processing continues after an earlier error and later accesses a pointer left null. Reachability requires an application to let attackers execute arbitrary SQL; the established consequence is a crash of that application process.

CVSS severity7.5
High
EPSS probability1.05%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in SQLite 3.31.1 allows attackers to crash an application by submitting a crafted INTERSECT query. During compound SELECT handling in src/select.c, processing continues after an earlier error and later accesses a pointer left null. Reachability requires an application to let attackers execute arbitrary SQL; the established consequence is a crash of that application process.

The record

CVE
CVE-2020-35525
Published
Sep 1, 2022
Updated
Aug 4, 2024
Vendor
SQLite
Product
SQLite
Classifications
CWE-476, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 1, 2022CVE 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=sqlite 3.31.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SQLite · SQLiteversion=sqlite 3.31.1

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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