CVE-2020-23533

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

0.92% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 57.8% of scored records. A rank, not a probability.

NVD base score

7.5 (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:N/I:H/A:N

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.

Published

2021-04-06 15:34Z5 YR AGO

Last updated

2024-08-04 14:58Z2 YR AGO

Reserved

2020-08-13

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-347Improper Verification of Cryptographic SignatureBase

Data version

5.1

Document digest

71ba480699fc920f7ea5a0e25cd75041f1dacec97c1c5039500e0698c4363636

• www.dropbox.comhttps://www.dropbox.com/s/6smwnbrp0kgsgrc/poc_code.py?dl=0x_refsource_MISC
• www.dropbox.comhttps://www.dropbox.com/s/czbkdr73tclq2nr/UnionPay_Vulnerability_Report.txt?dl=0x_refsource_MISC
• mobitec.ie.cuhk.edu.hkhttp://mobitec.ie.cuhk.edu.hk/cve_2020/x_refsource_MISC
• cwe.mitre.orghttps://cwe.mitre.org/data/definitions/347.htmlx_refsource_MISC