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CVE-2020-4388

25
FAUCET Score

CVE-2020-4388 describes a denial-of-service vulnerability in IBM Cognos Analytics versions 11.0 and 11.1, stemming from uncaught exceptions in a servlet that also exposes debug information. Rated with a CVSS score of 8.2 (High), this vulnerability is network-exploitable with low attack complexity, requiring no user interaction or privileges, and could lead to high availability impact and low confidentiality impact. While the vulnerability is significant, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or notable community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 11.0.0, < 11.0.13CPE matchmatch criteria
cpe:2.3:a:ibm:cognos_analytics:*:*:*:*:*:*:*:*
>= 11.1.0, <= 11.1.7CPE matchmatch criteria
cpe:2.3:a:ibm:cognos_analytics:*:*:*:*:*:*:*:*
11.0.13CPE matchmatch criteria
cpe:2.3:a:ibm:cognos_analytics:11.0.13:-:*:*:*:*:*:*
11.0.13CPE matchmatch criteria
cpe:2.3:a:ibm:cognos_analytics:11.0.13:fixpack1:*:*:*:*:*:*
11.0.13CPE matchmatch criteria
cpe:2.3:a:ibm:cognos_analytics:11.0.13:fixpack2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
2.5
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.26%
Probability of exploitation in next 30 days
EPSS Percentile
66.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0126 is in the 46th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

exchange.xforce.ibmcloud.com / vulnerabilities/179270
VDB EntryVendor Advisory
ibm.com / support/pages/node/6346922
PatchVendor Advisory