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CVE-2018-1801

20
FAUCET Score

CVE-2018-1801 describes an XML External Entity (XXE) injection vulnerability affecting IBM App Connect, IBM Integration Bus, and WebSphere Message Broker across multiple versions. A remote attacker could exploit this flaw by submitting specially crafted XML data, leading to a denial-of-service condition through the consumption of memory resources. The vulnerability has a CVSS v3 score of 5.3 (Medium), indicating a low attack complexity and no user interaction required, but with only low impact on availability. There is currently no evidence of active exploitation in the wild, nor are there publicly available exploit modules or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 11.0.0.0, <= 11.0.0.1CPE matchmatch criteria
cpe:2.3:a:ibm:app_connect:*:*:*:*:*:*:*:*
>= 9.0.0.0, <= 9.0.0.10CPE matchmatch criteria
cpe:2.3:a:ibm:integration_bus:*:*:*:*:*:*:*:*
>= 10.0.0.0, <= 10.0.0.13CPE matchmatch criteria
cpe:2.3:a:ibm:integration_bus:*:*:*:*:*:*:*:*
>= 8.0.0.0, <= 8.0.0.9CPE matchmatch criteria
cpe:2.3:a:ibm:websphere_message_broker:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.45%
Probability of exploitation in next 30 days
EPSS Percentile
82.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0245 is in the 74th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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/149639
VDB EntryVendor Advisory
ibm.com / support/docview.wss
PatchVendor Advisory