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CVE-2018-1991

16
FAUCET Score

CVE-2018-1991 describes an information disclosure vulnerability in IBM API Connect versions 5.0.0.0 through 5.0.8.6. The vulnerability allows sensitive information about the underlying software stack to be exposed through CMC UI headers. Rated with a CVSSv3 score of 2.7 (LOW), this flaw has a network attack vector, low attack complexity, and requires high privileges to exploit, with a limited impact on confidentiality. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.0.0.0, <= 5.0.8.6CPE matchmatch criteria
cpe:2.3:a:ibm:api_connect:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

2.7LOW

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.2
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.98%
Probability of exploitation in next 30 days
EPSS Percentile
58.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0098 is in the 87th percentile among its peer group of 709 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 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/154284
VDB EntryVendor Advisory
ibm.com / support/docview.wss
Vendor Advisory