What’s Vulnerable › Vulnerabilities

CVE-2025-3277

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-14 · updated 2026-10-15
• Weakness: CWE-122

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.

Affected products

• SQLite: from 3.44.0 before 3.49.1 — fixed in 3.49.1

How to fix

Upgrade to a fixed version: SQLite 3.49.1. Check the vendor advisory for mitigations.

References

• https://sqlite.org/src/info/498e3f1cf57f164f
• https://cert-portal.siemens.com/productcert/html/ssa-398330.html
• https://cert-portal.siemens.com/productcert/html/ssa-994087.html

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