CVE-2020-15636

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

8.54% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 94.6% 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.

Published

2020-08-19 20:55Z6 YR AGO

Last updated

2024-08-04 13:22Z2 YR AGO

Reserved

2020-07-07

Assigning CNA

zdi

Record state

PUBLISHED

Severity

High (CVSS 8.1)

CNA CVSS vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

• CWE-121Stack-based Buffer OverflowVariant

Data version

5.1

Document digest

2e6e0612f3151424b4bdd364b70fd0ec7bef0409b95029c4e538e926f3b3fb96

• www.zerodayinitiative.comhttps://www.zerodayinitiative.com/advisories/ZDI-20-937/x_refsource_MISC
• kb.netgear.comhttps://kb.netgear.com/000062128/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-R6700v3-PSV-2020-0224x_refsource_MISC