No exploitation reported

CVE-2019-4728

No exploitation reported by the sources we read.

Published2021-01-05
WeaknessCWE-502

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

IBM Sterling B2B Integrator Standard Edition 5.2.0.0 through 5.2.6.5_2, 6.0.0.0 through 6.0.3.2, and 6.1.0.0 could allow a remote attacker to execute arbitrary code on the system, caused by the deserialization of untrusted data. By sending specially crafted request, an attacker could exploit this vulnerability to execute arbitrary code with SYSTEM privileges. IBM X-Force ID: 172452.

Timeline

dates in UTC

2021-01-0515:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-4728?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-4728?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Ibm sterling b2b integratorversion to verify

Branch	Affected	Fixed in	Source
5.2	≥ 5.2.0.0, ≤ 5.2.6.5_2	no fix published	NVD
6.0	≥ 6.0.0.0, ≤ 6.0.3.2	no fix published	NVD
6.1	= 6.1.0.0	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

exchange.xforce.ibmcloud.comVendor Advisory
www.ibm.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.18.8read 2026-10-23
CNACVSS 3.08.8read 2026-10-23
NVDCVSS 2.09read 2026-10-23
NVDweakness (CWE)CWE-502read 2026-10-23
FIRST EPSSEPSS score5.2 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: 2021-01-05
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2019-4728?

Is CVE-2019-4728 actively exploited?

Active exploitation of CVE-2019-4728 has not been confirmed. Its EPSS score was 5.2% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-4728?

CVE-2019-4728 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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