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CVE-2025-3277

Sqlite buffer overflow

9.8 CRITICALEPSS 0.83%
  1. Published14 Apr 2025

Description

An integer overflow can be triggered in SQLite’s `concat_ws()` function. The resulting, truncated integer is then used to allocate a buffer. When SQLite then writes the resulting string to the buffer, it uses the original, untruncated size and thus a wild Heap Buffer overflow of size ~4GB can be triggered. This can result in arbitrary code execution.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Sqlite≥ 3.44.0 < 3.49.1

Remediation

Fixed in
Sqlite≥ 3.49.1

Frequently asked

Is CVE-2025-3277 being actively exploited?

CVE-2025-3277 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.83%.

How severe is CVE-2025-3277?

CVE-2025-3277 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.83% probability of exploitation.

Which products are affected by CVE-2025-3277?

Affected products include Sqlite.

How do I fix CVE-2025-3277?

Upgrade affected software to a fixed version, for example Sqlite 3.49.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-3277 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.