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CVE-2019-4728

27
FAUCET Score

CVE-2019-4728 is a critical deserialization vulnerability affecting IBM Sterling B2B Integrator versions 5.2.0.0 through 5.2.6.5_2, 6.0.0.0 through 6.0.3.2, and 6.1.0.0. This flaw allows a remote attacker to execute arbitrary code with SYSTEM privileges by sending a specially crafted request. With a CVSS score of 8.8 (High), it presents a significant risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.2.0.0, <= 5.2.6.5_2CPE matchmatch criteria
cpe:2.3:a:ibm:sterling_b2b_integrator:*:*:*:*:standard:*:*:*
>= 6.0.0.0, <= 6.0.3.2CPE matchmatch criteria
cpe:2.3:a:ibm:sterling_b2b_integrator:*:*:*:*:standard:*:*:*
6.1.0.0CPE matchmatch criteria
cpe:2.3:a:ibm:sterling_b2b_integrator:6.1.0.0:*:*:*:standard:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.95%
Probability of exploitation in next 30 days
EPSS Percentile
91.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0495 is in the 91st percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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/172452
VDB EntryVendor Advisory
ibm.com / support/pages/node/6396172
Vendor Advisory