CVE-2025-36419VulnerabilityPublished 20 Jan 2026

CVE-2025-36419: IBM ApplinX · Server-generated Error Message Containing Sensitive Information

Affects IBM ApplinXSource CVE Database V5

Not known to be exploited · CVSS 5.3 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score

5.3Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 15% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 20 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 2026-10-26.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
IBMApplinX	Affected =11.1	Fixed in–

CPE configurations (1)

cpe:2.3:a:ibm:applinx:11.1:*:*:*:*:*:*:*

AI-suggested

To mitigate CVE-2025-36419, European organizations should implement the following specific measures: 1) Configure IBM ApplinX 11.1 to suppress detailed error messages in production environments, ensuring that server responses do not reveal sensitive internal information. 2) Monitor IBM's security advisories closely and apply patches or updates promptly once available. 3) Employ web application firewalls (WAFs) or intrusion detection/prevention systems (IDS/IPS) to detect and block suspicious requests that may trigger error messages. 4) Conduct regular security assessments and penetration tests focusing on error handling and information leakage. 5) Limit network exposure of ApplinX servers by restricting access to trusted IP ranges and using VPNs or zero-trust network architectures. 6) Train development and operations teams on secure coding and error handling best practices to prevent similar issues in future deployments. 7) Implement comprehensive logging and alerting to detect unusual error message patterns that could indicate reconnaissance attempts.

Description

IBM ApplinX 11.1 could disclose sensitive information about server architecture that could aid in further attacks against the system.

Impact

For European organizations, the impact of CVE-2025-36419 primarily concerns the confidentiality of internal system information. Disclosure of server architecture details can facilitate more sophisticated attacks, including targeted exploitation of other vulnerabilities or social engineering campaigns. Organizations relying on IBM ApplinX 11.1 for critical business applications, especially those in sectors like finance, government, and manufacturing, may face increased risk of follow-on attacks if this information is leveraged by threat actors. While the vulnerability itself does not directly compromise system integrity or availability, the intelligence gained can reduce the effort required for attackers to breach defenses. This is particularly relevant for European entities subject to strict data protection regulations such as GDPR, where any security weakness that could lead to data breaches must be addressed promptly. The absence of known exploits reduces immediate risk but does not eliminate the potential for future attacks, emphasizing the need for proactive mitigation.

CWE-550Server-generated Error Message Containing Sensitive Information (opens in a new tab)
Variant weaknessOWASP Top 10 A10:2025: Mishandling of Exceptional Conditions (opens in a new tab)
Certain conditions, such as network failure, will cause a server error message to be displayed.
Architecture and Design · System Configuration
Recommendations include designing and adding consistent error handling mechanisms which are capable of handling any user input to your web application, providing meaningful detail to end-users, and preventing error messages that might provide information useful to an attacker from being displayed.
OWASP Cheat Sheets
Error Handling (opens in a new tab)
Logging (opens in a new tab)
OWASP ASVS 4.0.3
V8.3.4 (opens in a new tab)
V14.3.3 (opens in a new tab)
V7.3.3 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

ibm.com/support/pages/node/7257446 (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

CPE configurations (1)

Description

AI analysisMachine-generated, updated 20 Jan 2026, 16:20 UTC

WeaknessesCWE-550

Technical details

References

Community reviews

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