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CVE-2020-4387

18
FAUCET Score

CVE-2020-4387 describes a local information disclosure vulnerability affecting IBM DB2 for Linux, UNIX, and Windows versions 9.7 through 11.5. This flaw, categorized as a race condition involving symbolic links (CWE-362), could allow an authenticated local user to gain unauthorized access to sensitive information. With a CVSS v3.1 score of 4.7 (Medium), exploitation requires high attack complexity and user privileges, but does not impact integrity or availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
9.7.0.0CPE matchmatch criteria
cpe:2.3:a:ibm:db2:9.7.0.0:*:*:*:*:*:*:*
10.1.0.0CPE matchmatch criteria
cpe:2.3:a:ibm:db2:10.1.0.0:*:*:*:*:*:*:*
10.5.0.0CPE matchmatch criteria
cpe:2.3:a:ibm:db2:10.5.0.0:*:*:*:*:*:*:*
11.1.0.0CPE matchmatch criteria
cpe:2.3:a:ibm:db2:11.1.0.0:*:*:*:*:*:*:*
11.5.0.0CPE matchmatch criteria
cpe:2.3:a:ibm:db2:11.5.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.2MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.5
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.24%
Probability of exploitation in next 30 days
EPSS Percentile
14.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0024 is in the 57th percentile among its peer group of 1,297 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 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/179269
VDB EntryVendor Advisory
ibm.com / support/pages/node/6242336
PatchVendor Advisory