Read the docs
TI-2026-41695 Aliases CVE-2026-57916GHSA-m7cq-h27p-hwp4

Arbitrary Path Execution via CPS URI in proCertum SmartSign

Priority LOW 20CWE-73Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

proCertum SmartSign opens Certificate Practice Statement (CPS) URI without schema validation. An attacker can prepare arbitrary certificate with CPS URI pointing to a local executable file or any URL, sign a document with it, and send it to the victim. When the victim opens the document in the application, the specified file will be executed (or webpage will be opened). This issue was fixed in version 9.4.3.90.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00111 1st percentileScored 2026-11-07
Fix Fixed proCertum SmartSign (Asseco): 9.4.3.90

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AssecoproCertum SmartSignbefore 9.4.3.909.4.3.90Patch availableCNA
  • proCertum SmartSign VendorAsseco Affected before 9.4.3.90 Fixed in 9.4.3.90 Patch available CNA

Remediation

  • Fix · CNA proCertum SmartSign (Asseco) Fixed in 9.4.3.90

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Asseco proCertum SmartSign 9.4.3.90

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-41696 Improper Restriction of XML External Entity Reference in proCertum SmartSignPriority LOW 21

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-57916
  2. 2026-10-03 Alias added: GHSA-m7cq-h27p-hwp4

References

  • TI-2022-10314 The Reporting module in Aseco Lietuva document management system DVS Avilys before 3.5.58… CVSS 3.1HIGH 7.5
  • TI-2025-41095 Local File Inclusion in Contact Plan, E-Mail, SMS and Fax components in Asseco SEE Live… CVSS 3.1MEDIUM 6.5
  • TI-2025-07603 Recoverable passwords in Asseco Infomedica Plus CVSS 4.0MEDIUM 5.9
  • TI-2025-04109 Information disclosure via IDOR in Asseco AMDX CVSS 4.0MEDIUM 5.3
  • TI-2025-07602 Improper Access Control in Asseco Infomedica Plus CVSS 4.0MEDIUM 5.1
  • TI-2026-41696 Improper Restriction of XML External Entity Reference in proCertum SmartSign CVSS 4.0MEDIUM 4.8

Sources