CVE-2020-4821 is a critical authentication bypass vulnerability affecting IBM InfoSphere Data Replication 11.4 and IBM InfoSphere Change Data Capture for z/OS 10.2.1 under specific configurations. With a CVSS score of 9.8, this flaw allows an unauthenticated attacker to bypass security mechanisms by using an empty password string, leading to complete compromise of confidentiality, integrity, and availability. Despite its critical severity, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
11.4CPE matchmatch criteria | cpe:2.3:a:ibm:infosphere_data_replication:11.4:*:*:*:*:*:*:* | ||
11.4.0CPE matchmatch criteria | cpe:2.3:a:ibm:infosphere_data_replication:11.4.0:*:*:*:*:*:*:* | ||
10.2.1CPE matchmatch criteria | cpe:2.3:a:ibm:infosphere_change_data_capture:10.2.1:*:*:*:*:z\/os:*:* | ||
11.3.3CPE matchmatch criteria | cpe:2.3:a:ibm:infosphere_change_data_capture:11.3.3:*:*:*:*:z\/os:*:* | ||
11.4CPE matchmatch criteria | cpe:2.3:a:ibm:infosphere_change_data_capture:11.4:*:*:*:*:z\/os:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.