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01 Record

CVE-2020-25843

CHANGING Inc. NHIServiSignAdapter Windows Versions - Heap Overflow

HighPUBLISHEDCNA: twcert
CNA base score8.1 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

02 Description

CHANGING Inc. NHIServiSignAdapter Windows Versions - Heap Overflow

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.97% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 80.1% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2020-12-31 07:45Z5 YR AGO
Last updated
2024-09-16 18:28Z2 YR AGO
Reserved
2020-09-23
Assigning CNA
twcert
Record state
PUBLISHED
Severity
High (CVSS 8.1)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-122Heap-based Buffer OverflowVariant
  • CWE-787Out-of-bounds WriteBase
Data version
5.1
Document digest
48e4895efb1bdfffd7353f73b0d7812b604bb12267754cce7dc39ab649f75427

05 Affected products

VendorProductVersionsPlatforms
CHANGING Inc.NHIServiSignAdapter1.0.20.0218Windows

06 References

07 Remediation

Update to version 1.0.20.1109