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01 Record

CVE-2020-25855

The function AES_UnWRAP() in the Realtek RTL8195A Wi-Fi Module prior to versions released in April 2020 (up to and excluding 2.08) does not validate the size parameter for a memcpy() operation,

UnratedPUBLISHEDCNA: VDOO
CNA base scoreUnratedNo CNA CVSS vector

02 Description

The function AES_UnWRAP() in the Realtek RTL8195A Wi-Fi Module prior to versions released in April 2020 (up to and excluding 2.08) does not validate the size parameter for a memcpy() operation,

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
2.63% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 85.2% of scored records. A rank, not a probability.
NVD base score
8.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/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
2021-02-03 16:49Z5 YR AGO
Last updated
2024-08-04 15:49Z2 YR AGO
Reserved
2020-09-23
Assigning CNA
VDOO
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-121Stack-based Buffer OverflowVariant
  • CWE-787Out-of-bounds WriteBase
Data version
5.1
Document digest
1e73377b01bb424e9eef38b1ce746d8b7403a5ca2743e1c74a9eb67d2ca71044

05 Affected products

VendorProductVersionsPlatforms
n/aRealtek RTL8195A Wi-Fi ModuleVersions before 2020-04-21 (up to and excluding 2.08)—

06 References