CVE-2020-17516

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

1.93% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 78.2% 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:H/I:N/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

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

2021-02-03 16:40Z5 YR AGO

Last updated

2024-08-04 14:00Z2 YR AGO

Reserved

2020-08-12

Assigning CNA

apache

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-290Authentication Bypass by SpoofingBase
• CWE-200Exposure of Sensitive Information to an Unauthorized ActorClass

Data version

5.1

Document digest

e4c369450061c0436514ec12b56c832d6a8e7328f6b2fdc5d7e7dc0bec2b9d04

• mail-archives.apache.orghttp://mail-archives.apache.org/mod_mbox/cassandra-user/202102.mbox/%3c6E4340A5-D7BE-4D33-9EC5-3B505A626D8D%40apache.org%3ex_refsource_CONFIRM
• lists.apache.org[cassandra-commits] 20210217 [jira] [Created] (CASSANDRA-16455) CVE-2020-17516 mitigation in 2.2.x branchhttps://lists.apache.org/thread.html/rd84bec24907617bdb72f7ec907cd7437a0fd5a8886eb55aa84dd1eb8%40%3Ccommits.cassandra.apache.org%3Emailing-listx_refsource_MLIST
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20210521-0002/x_refsource_CONFIRM
• lists.apache.org[cassandra-commits] 20210523 [jira] [Updated] (CASSANDRA-16455) CVE-2020-17516 mitigation in 2.2.x branchhttps://lists.apache.org/thread.html/rcb16f36cafa184dd159e94033f87d0fc274c4752d467f3a09f2ceae4%40%3Ccommits.cassandra.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[cassandra-commits] 20210915 [jira] [Updated] (CASSANDRA-16455) CVE-2020-17516 mitigation in 2.2.x branchhttps://lists.apache.org/thread.html/r81243a412a37a22211754936a13856af07cc68a93d728c52807486e9%40%3Ccommits.cassandra.apache.org%3Emailing-listx_refsource_MLIST