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VulnerabilityPublished

CVE-2025-36603: Dell AppSync · XML External Entity (XXE)

Affects Dell AppSyncSource CVE Database V5

0

Not known to be exploited · CVSS 4.2 Medium.

Data as of 26 Oct 2026, 09:15 UTC

CVSS 3.1 base score
4.2Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 2% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Jul 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Dell AppSyncAffected
  • =4.6.0.0
Fixed in–

AI-suggested

European organizations should implement the following specific mitigation measures: 1) Restrict local access to systems running Dell AppSync to trusted personnel only, enforcing strict access controls and monitoring. 2) Educate users about the risks of interacting with untrusted XML content and enforce policies to limit the processing of XML files from unverified sources. 3) Apply application-level hardening by disabling or properly configuring XML external entity processing if configurable within Dell AppSync or underlying XML parsers. 4) Monitor system logs and application behavior for unusual XML parsing activities or errors that could indicate exploitation attempts. 5) Maintain an inventory of affected Dell AppSync versions and prepare to deploy vendor patches promptly once available. 6) Employ endpoint detection and response (EDR) solutions to detect anomalous local activities that could precede exploitation. 7) Conduct regular security audits and penetration tests focusing on local privilege escalation and XML processing components. These targeted actions go beyond generic advice by focusing on the specific attack vector and exploitation conditions of this vulnerability.

Description

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 and Information tampering.

References

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