Is CVE-2026-3603 in the CISA KEV catalog?

No. CVE-2026-3603 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-3603?

CVE-2026-3603 has a CVSS v3 base score of 7.1 (HIGH).

What is the EPSS score for CVE-2026-3603?

CVE-2026-3603 has an EPSS score of 0.35% (27th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2026-3603

HIGH

7.1

CVSS v3

NVD

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.

CWE-611XML External Entity (XXE)

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L

Exploit Intelligence

0.35%probability of exploitation in 30 days

27thpercentile

Low risk: more likely to be exploited than 27% of all known CVEs.

References

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

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-02.