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CVE-2025-36049VulnerabilityPublished Updated

CVE-2025-36049: IBM webMethods Integration Server · XML External Entity (XXE)

Affects IBM webMethods Integration ServerSource CVE Database V5

0

Not known to be exploited · CVSS 8.8 High.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 50% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Jun 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
IBM webMethods Integration ServerAffected
  • =10.5
  • =10.7
  • =10.11
  • =10.15
Fixed in–

AI-suggested

To mitigate this vulnerability effectively, European organizations should: 1) Immediately identify and inventory all instances of IBM webMethods Integration Server versions 10.5, 10.7, 10.11, and 10.15 within their environment. 2) Apply any available patches or updates from IBM as soon as they are released; monitor IBM security advisories closely. 3) If patches are not yet available, implement compensating controls such as disabling XML external entity processing in the server configuration or applying XML parser hardening techniques to restrict external entity resolution. 4) Restrict network access to the Integration Server management interfaces and XML processing endpoints to trusted internal networks only, using firewalls and network segmentation. 5) Enforce strong authentication and authorization policies to reduce the risk of credential compromise. 6) Monitor logs and network traffic for anomalous XML payloads or suspicious command execution attempts. 7) Conduct security awareness and training for administrators managing these servers to recognize and respond to potential exploitation attempts. 8) Consider deploying runtime application self-protection (RASP) or web application firewalls (WAF) with rules targeting XXE attack patterns as an additional layer of defense.

Description

IBM webMethods Integration Server 10.5, 10.7, 10.11, and 10.15 is vulnerable to an XML external entity injection (XXE) attack when processing XML data. A remote authenticated attacker could exploit this vulnerability to execute arbitrary commands.

References

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