CVE-2020-27211

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

0.27% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 19.6% of scored records. A rank, not a probability.

NVD base score

5.7 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/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

2021-05-21 12:04Z5 YR AGO

Last updated

2024-08-04 16:11Z2 YR AGO

Reserved

2020-10-19

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-203Observable DiscrepancyBase

Data version

5.1

Document digest

e0eca6b6cc79ca46dac84cad97641478f7bd4df533967001f7bf2399f9346e6a

• www.aisec.fraunhofer.dehttps://www.aisec.fraunhofer.de/en/FirmwareProtection.htmlx_refsource_MISC
• eprint.iacr.orghttps://eprint.iacr.org/2021/640x_refsource_MISC
• limitedresults.comhttps://limitedresults.com/2020/06/nrf52-debug-resurrection-approtect-bypass/x_refsource_MISC
• infocenter.nordicsemi.comhttps://infocenter.nordicsemi.com/pdf/in_133_v1.0.pdfx_refsource_MISC
• www.aisec.fraunhofer.dehttps://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.htmlx_refsource_MISC