How severe is CVE-2026-3603?

CVE-2026-3603 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability low.

Is CVE-2026-3603 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-3603?

CVE-2026-3603 primarily affects Ibm Engineering Lifecycle Management. In total, 33 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-3603?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-3603 have an EU (EUVD) identifier?

Yes. CVE-2026-3603 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31952.

When was CVE-2026-3603 published?

CVE-2026-3603 was published on 2026-05-26 and last updated on 2026-06-17.

CVE-2026-3603

CVE-2026-3603 is a high-severity vulnerability in Ibm Engineering Lifecycle Management with a CVSS 3.x base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-611.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-31952
Weakness: CWE-611
Affected product: Ibm Engineering Lifecycle Management
Published: 2026-05-26
Last modified: 2026-06-17

Description

IBM Engineering Lifecycle Management 7.0.3 Interim Fix 001 through Interim Fix 021, 7.1.0 Interim Fix 001 through Interim Fix 009, and 7.2.0 and 7.2.0 Interim Fix 001 is vulnerable to an XML external entity injection (XXE) attack when processing XML data. An authenticated attacker could exploit this vulnerability to expose sensitive information or consume memory resources.

Frequently asked questions

What is CVE-2026-3603?: IBM Engineering Lifecycle Management 7.0.3 Interim Fix 001 through Interim Fix 021, 7.1.0 Interim Fix 001 through Interim Fix 009, and 7.2.0 and 7.2.0 Interim Fix 001 is vulnerable to an XML external entity injection (XXE) attack when processing XML data. An authenticated attacker could exploit this vulnerability to expose sensitive information or consume memory resources.
How severe is CVE-2026-3603?: CVE-2026-3603 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability low.
Is CVE-2026-3603 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-3603?: CVE-2026-3603 primarily affects Ibm Engineering Lifecycle Management. In total, 33 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-3603?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-3603 have an EU (EUVD) identifier?: Yes. CVE-2026-3603 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31952.
When was CVE-2026-3603 published?: CVE-2026-3603 was published on 2026-05-26 and last updated on 2026-06-17.

References

https://www.ibm.com/support/pages/node/7274078

Affected products (33)

cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:-:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:ifix002:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:ifix003:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:ifix004:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:ifix005:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:ifix006:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:ifix007:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:ifix008:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:ifix009:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:ifix010:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:ifix011:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:ifix012:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:ifix013:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:ifix014:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:ifix015:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:ifix016:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:ifix017:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:ifix018:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:ifix019:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:ifix020:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.3:ifix021:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.1.0:-:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.1.0:ifix001:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.1.0:ifix002:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.1.0:ifix003:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.1.0:ifix004:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.1.0:ifix005:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.1.0:ifix006:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.1.0:ifix007:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.1.0:ifix008:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.1.0:ifix009:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.2.0:-:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_management:7.2.0:ifix001:*:*:*:*:*:*

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CVE-2018-1000838 — Critical (CVSS 10.0): autopsy version <= 4.9.0 contains a XML External Entity (XXE) vulnerability in CaseMetadata XML Parser that can result…
CVE-2018-1000837 — Critical (CVSS 10.0): UML Designer version <= 8.0.0 contains a XML External Entity (XXE) vulnerability in XML parser for plugins that can…
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