VulnerabilityPublished 19 Nov 2025

CVE-2025-36371: IBM · Use of HTTP Request With Sensitive Query String

Affects IBMSource CVE Database V5

Not known to be exploited · CVSS 6.5 Medium.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score

6.5Medium

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

EPSS: 0.2% chance of exploitation in 30 days – higher than 20% 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:N/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: High
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: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
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: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
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 19 Nov 2025
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 26 Oct 2026.

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 or the CVSS exploit maturity 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
IBM	Affected 7.2 – 7.6 5 affected builds	Fixed in–

AI-suggested

Organizations should implement strict access controls to limit who can access the database plan cache, ensuring only fully authorized administrators have such privileges. Monitoring and auditing access to the plan cache should be enhanced to detect unusual or unauthorized queries. Network segmentation and firewall rules should restrict access to IBM i systems to trusted hosts and users. IBM i administrators should stay alert for official patches or updates from IBM and apply them promptly once available. In the interim, consider disabling or restricting features that expose the plan cache if feasible without disrupting business operations. Employing encryption for sensitive data at rest and in transit can reduce the impact of any data exposure. Additionally, conduct regular security assessments and penetration tests focusing on IBM i environments to identify and remediate similar weaknesses proactively.

Description

IBM i 7.2, 7.3, 7.4, 7.5, and 7.6 are impacted by obtaining an information vulnerability in the database plan cache implementation. A user with access to the database plan cache could see information they do not have authority to view.

Impact

For European organizations, this vulnerability poses a risk of unauthorized disclosure of sensitive information stored or processed within IBM i database environments. Sectors such as finance, manufacturing, public administration, and utilities that rely heavily on IBM i systems for critical operations could face confidentiality breaches, leading to regulatory compliance issues under GDPR and other data protection laws. Exposure of sensitive query data or database metadata could facilitate further targeted attacks, insider threats, or data exfiltration. Although the vulnerability does not directly impact system integrity or availability, the confidentiality breach alone can result in significant reputational damage, financial penalties, and loss of customer trust. The requirement for low privileges means that insider threats or compromised low-level accounts could exploit this vulnerability, increasing the risk profile. Since IBM i systems are often used in legacy and critical infrastructure environments, the impact of data leakage can be substantial.

CWE-598Use of HTTP Request With Sensitive Query String (opens in a new tab)
Variant weaknessOWASP Top 10 A06:2025: Insecure Design (opens in a new tab)
The web application uses an HTTP method to process a request, but the request includes sensitive information in the query string.
Implementation
When sending sensitive information, only include it in the request body or request headers instead of the query string. This may require avoiding use of GET requests.
OWASP Cheat Sheets
Server Side Request Forgery Prevention (opens in a new tab)
Web Service Security (opens in a new tab)
Secure Design Principles (opens in a new tab)
OWASP ASVS 4.0.3
V3.1.1 (opens in a new tab)
V13.1.3 (opens in a new tab)
V8.3.4 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

ibm.com/support/pages/node/7251699 (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 19 Nov 2025, 20:12 UTC

WeaknessesCWE-598

Technical details

References

Community reviews

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