CVE-2025-1759VulnerabilityPublished 18 Aug 2025

CVE-2025-1759: IBM Concert Software · Heap Inspection

Affects IBM Concert SoftwareSource CVE Database V5

Not known to be exploited · CVSS 5.9 Medium.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score

5.9Medium

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

EPSS: 0.3% chance of exploitation in 30 days – higher than 25% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Network
Attack Complexity: High
Privileges Required: None
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: High: A successful attack depends on conditions beyond the attacker's control. That is, a successful attack cannot be accomplished at will, but requires the attacker to invest in some measurable amount of effort in preparation or execution against the vulnerable component before a successful attack can be expected. For example, a successful attack may require an attacker to: gather knowledge about the environment in which the vulnerable target/component exists; prepare the target environment to improve exploit reliability; or inject themselves into the logical network path between the target and the resource requested by the victim in order to read and/or modify network communications (e.g., a man in the middle attack).
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: 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 18 Aug 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 2026-10-25.

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
IBM Concert Software	Affected =1.0.0	Fixed in–

AI-suggested

Given the absence of an official patch, European organizations should implement several specific mitigations: 1) Restrict network access to IBM Concert Software instances by enforcing strict firewall rules and network segmentation to limit exposure to untrusted networks. 2) Monitor and log access to the software to detect unusual or unauthorized remote connection attempts. 3) Employ memory protection techniques at the operating system level, such as Address Space Layout Randomization (ASLR) and Data Execution Prevention (DEP), to reduce exploitation likelihood. 4) Conduct regular security audits and penetration testing focused on heap memory handling and information leakage. 5) Where possible, configure the software to run with the least privileges necessary to limit the impact of potential exploitation. 6) Prepare for patch deployment by establishing a rapid update process once IBM releases a fix. 7) Educate IT and security teams about this vulnerability to increase awareness and readiness.

Description

IBM Concert Software 1.0.0 through 1.1.0 could allow a remote attacker to obtain sensitive information from allocated memory due to improper clearing of heap memory.

Impact

For European organizations using IBM Concert Software, this vulnerability poses a risk of sensitive data leakage. Since the software is involved in managing business processes and workflows, the exposed heap memory could contain confidential business information, user credentials, or session tokens. Unauthorized disclosure of such data could lead to further attacks such as identity theft, unauthorized access to internal systems, or industrial espionage. The remote exploitability without authentication increases the threat surface, especially if the software is exposed to untrusted networks or the internet. However, the high attack complexity somewhat limits the ease of exploitation. Still, organizations in sectors with strict data protection regulations like GDPR must consider the risk of non-compliance and potential fines if sensitive personal or business data is leaked. Additionally, the lack of patches means organizations must rely on mitigations until an official fix is released.

CWE-244Improper Clearing of Heap Memory Before Release ('Heap Inspection') (opens in a new tab)
Variant weakness
Using realloc() to resize buffers that store sensitive information can leave the sensitive information exposed to attack, because it is not removed from memory.
OWASP ASVS 4.0.3
V8.3.2 (opens in a new tab)
V8.3.6 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

ibm.com/support/pages/node/7242354 (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 18 Aug 2025, 14:18 UTC

WeaknessesCWE-244

Technical details

References

Community reviews

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