CVE-2025-52099Public exploit

Application crash via overflowing lookaside calculation

Published Oct 24, 2025 · Updated Oct 24, 2025

Integer overflow in SQLite 3.49.0 and earlier allows attackers controlling lookaside API arguments to crash the hosting application. In setupLookaside, the sz*nBig multiplication is evaluated without widening, so large size and count values wrap and corrupt the computed small-slot count. Reachability requires a caller to pass out-of-bounds SQLITE_DBCONFIG_LOOKASIDE arguments; this CVE record is rejected as a duplicate of CVE-2025-29088.

CVSS severityUnavailable
Unscored
EPSS probabilityUnavailable
No score available in this record
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in SQLite 3.49.0 and earlier allows attackers controlling lookaside API arguments to crash the hosting application. In setupLookaside, the sz*nBig multiplication is evaluated without widening, so large size and count values wrap and corrupt the computed small-slot count. Reachability requires a caller to pass out-of-bounds SQLITE_DBCONFIG_LOOKASIDE arguments; this CVE record is rejected as a duplicate of CVE-2025-29088.

The record

CVE
CVE-2025-52099
Published
Oct 24, 2025
Updated
Oct 24, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1499
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 24, 2025Record 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

No CVSS assessment is available in this record.

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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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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