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TI-2020-15835 Aliases CVE-2020-25844GHSA-j59v-276v-qwjv

CHANGING Inc. NHIServiSignAdapter Windows Versions - Stack Overflow

Priority MEDIUM 46CWE-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
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

The digest generation function of NHIServiSignAdapter has not been verified for parameter’s length, which leads to a stack overflow loophole. Remote attackers can use the leak to execute code without privilege.

Why it matters now

EPSS 0.01978 80th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
CHANGINGNHIServiSignAdapter1.0.20.0218—No fix listedCNA
  • NHIServiSignAdapter VendorCHANGING Affected 1.0.20.0218 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:panorama:nhiservisignadapter:1.0.20.0218:*:*:*:*:windows:*:*1.0.20.0218VulnerablePanorama
  • cpe:2.3:a:panorama:nhiservisignadapter:1.0.20.0218:*:*:*:*:windows:*:* Versions 1.0.20.0218 Vulnerable ·Panorama

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-25844
  2. 2026-10-03 Alias added: GHSA-j59v-276v-qwjv

References

Advisory 1

  • TI-2022-18452 ChangingTec MegaServiSignAdapter - Improper Input Validation CVSS 3.1CRITICAL 9.8
  • TI-2022-18448 Changing Information Technology Inc. RAVA certificate validation system - SQL Injection CVSS 3.1CRITICAL 9.8
  • TI-2026-02589 Changing｜IDExpert Windows Logon Agent - Remote Code Execution CVSS 4.0CRITICAL 9.3
  • TI-2026-02588 Changing｜IDExpert Windows Logon Agent - Remote Code Execution CVSS 4.0CRITICAL 9.3
  • TI-2021-15669 CHANGING Inc. TSSServiSignAdapter Windows Versions - Improper Input Validation CVSS 3.1CRITICAL 9.8
  • TI-2020-15834 CHANGING Inc. NHIServiSignAdapter Windows Versions - Heap Overflow CVSS 3.1CRITICAL 9.8
See all 41 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences