What is CVE-2025-36603?

CVE-2025-36603 is a medium-severity vulnerability in Dell Appsync, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 4.2/10. Published 2025-07-21.

How severe is CVE-2025-36603?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Is CVE-2025-36603 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XXE in Dell Appsync

CVE-2025-36603

Dell AppSync, version(s) 4.6.0.0, contains an Improper Restriction of XML External Entity Reference vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Information disclosure…

Vulnerability class: XXE (XML External Entity)

EPSS: 0.000 (12.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L.

Affected products

Dell Appsync — versions NA

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

www.dell.com/support/kbdoc/en-us/000345331/dsa-2025-277-security-update-for-del… (vendor-advisory)

Frequently asked questions

What is CVE-2025-36603?: CVE-2025-36603 is a medium-severity vulnerability in Dell Appsync, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 4.2/10. Published 2025-07-21.
How severe is CVE-2025-36603?: Medium severity. CVSS v3 base score is 4.2 out of 10.
Is CVE-2025-36603 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.