CVE-2020-15358Public exploit

Service interruption via query-flattener buffer over-read

Published Jun 27, 2020 · Updated Aug 4, 2024

Heap-buffer over-read in SQLite before 3.32.3 allows local users to interrupt an application with a malicious SQL statement. During query flattening in select.c, multiSelectOrderBy misuses transitive constant-propagation properties and reads beyond a heap allocation. Reachability requires an application to let the attacker execute arbitrary SQL; the known consequence is a crash or service interruption, not code execution.

CVSS severity5.5
Medium
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

Heap-buffer over-read in SQLite before 3.32.3 allows local users to interrupt an application with a malicious SQL statement. During query flattening in select.c, multiSelectOrderBy misuses transitive constant-propagation properties and reads beyond a heap allocation. Reachability requires an application to let the attacker execute arbitrary SQL; the known consequence is a crash or service interruption, not code execution.

The record

CVE
CVE-2020-15358
Published
Jun 27, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

2.1NIST NVDAV:L/AC:L/Au:N/C:N/I:N/A:P
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1499Endpoint Denial of Service

Public exploit references

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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