CVE-2025-71316
CRITICAL 9.2 ALL-YEARSSQLite 'sqldiff.exe' does not securely handle the way the Microsoft Windows C runtime converts Unicode characters to ANSI codepages. An attacker could use the '-L' option to load an arbitrary DLL with a crafted command line argument string that results in command line file arguments being misinterpreted as command line options. Fixed on or around 2025-12-26.
Severe if exploited (CVSS 9.2), but no confirmed exploitation. Patch on a normal cadence.
Exploitation likelihood
0.5%chance of exploitation in 30 days · 45th percentile
Impact if exploited
9.2CVSS 4.0 · CRITICAL · CNA
- ConfidentialityHigh
- IntegrityHigh
- AvailabilityHigh
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ✓Privileges: No account or privileges required
- ✓User interaction: No user interaction needed
- ✓Complexity: No special conditions — reliably repeatable
- ⚠Requirements: Specific conditions must be present
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
No public PoC is currently catalogued.
Search for new PoCs
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Tracked sources are checked weekly for the full archive, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.
Data snapshot:
Weakness (CWE)
- CWE-176: Improper Handling of Unicode Encoding
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References and research data (JSON)
All CVSS metrics
- CRITICAL 9.8 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CRITICAL 9.2 v4.0 · CNA Primary
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - CRITICAL 9.2 v4.0 · NVD Secondary
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CRITICAL 9.8 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
Exploit-tagged references (not proof of a PoC)
- https://i.blackhat.com/EU-24/Presentations/EU-24-Tsai-V2-WorstFit-Unveiling-Hidden-Transformers-in-Windows-ANSI.pdf CVE record · cisa-cg · Updated 2026-06-04T19:14:20.094Z
NVD · CVE-2025-71316 · Updated 2026-10-15T02:18:25.980
Patches & mitigations
- https://sqlite.org/src/file/tool/winmain.c CVE record · cisa-cg · Updated 2026-06-04T19:14:20.094Z
NVD · CVE-2025-71316 · Updated 2026-10-15T02:18:25.980 - https://learn.microsoft.com/en-us/windows/win32/api/processenv/nf-processenv-getcommandlinea#security-remarks CVE record · cisa-cg · Updated 2026-06-04T19:14:20.094Z
NVD · CVE-2025-71316 · Updated 2026-10-15T02:18:25.980
Advisories
- https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-155-01.json CVE record · cisa-cg · Updated 2026-06-04T19:14:20.094Z
NVD · CVE-2025-71316 · Updated 2026-10-15T02:18:25.980 - https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-210067 EUVD · EUVD-2025-210067
Technical & other
- https://www.cve.org/CVERecord?id=CVE-2025-71316 CVE record · cisa-cg · Updated 2026-06-04T19:14:20.094Z
NVD · CVE-2025-71316 · Updated 2026-10-15T02:18:25.980 - https://cert-portal.siemens.com/productcert/html/ssa-765416.htmlCVE record · siemens-SADP · Updated 2026-10-15T01:11:23.519Z
NVD · CVE-2025-71316 · Updated 2026-10-15T02:18:25.980
Sources: NVD · CVE.org · All sources and attribution · EPSS