Stack-based buffer overflow via unsafe sscanf in check_account()
Priority MEDIUM 49CWE-121Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
An unauthenticated remote attacker can abuse unsafe sscanf calls within the check_account() function to write arbitrary data into fixed-size stack buffers which leads to full device compromise.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00429 37th percentileScored 2026-11-07
Fix Fixed Indsutrial-Managed-Switches (WAGO): 02.64
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| WAGO | Indsutrial-Managed-Switches | 0.0.0 to before 02.64 | 02.64 | Patch available | CNA |
- Indsutrial-Managed-Switches VendorWAGO Affected 0.0.0 to before 02.64 Fixed in 02.64 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:wago:0852-1328_firmware:*:*:*:*:*:*:*:* | before 02.64 | Vulnerable | WAGO |
| cpe:2.3:h:wago:0852-1328:-:*:*:*:*:*:*:* | not specified by NVD | Running on | WAGO |
| cpe:2.3:o:wago:0852-1322_firmware:*:*:*:*:*:*:*:* | before 02.64 | Vulnerable | WAGO |
| cpe:2.3:h:wago:0852-1322:-:*:*:*:*:*:*:* | not specified by NVD | Running on | WAGO |
- cpe:2.3:o:wago:0852-1328_firmware:*:*:*:*:*:*:*:* Versions before 02.64 Vulnerable ·WAGO
- cpe:2.3:h:wago:0852-1328:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
- cpe:2.3:o:wago:0852-1322_firmware:*:*:*:*:*:*:*:* Versions before 02.64 Vulnerable ·WAGO
- cpe:2.3:h:wago:0852-1322:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·WAGO
Remediation
- Fix · CNA Indsutrial-Managed-Switches (WAGO) Fixed in 02.64
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
WAGO Indsutrial-Managed-Switches 02.64
2 records Highest priority Priority MEDIUM 2 MEDIUM
Other records, highest priority first
- TI-2025-27694 Stack-based buffer overflow via unsafe sscanf in check_cookie()Priority MEDIUM 49
Timeline
- 2026-10-02 Threatist record created from CVE-2025-41730
- 2026-10-03 Alias added: GHSA-mf5w-78vr-g8gf
References
More WAGO 0852-1322 Firmware vulnerabilities
- TI-2025-27694 Stack-based buffer overflow via unsafe sscanf in check_cookie() CVSS 3.1CRITICAL 9.8
Sources
- CVE-2025-41730 · CVE Program
- CVE-2025-41730 · NVD
- FIRST EPSS
- GHSA-mf5w-78vr-g8gf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences