CWE-204
Observable Response Discrepancy
The product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere.
CVE-2025-2910 (GCVE-0-2025-2910)
Vulnerability from cvelistv5 – Published: 2025-03-28 12:53 – Updated: 2025-03-28 13:47
VLAI
Title
User enumeration vulnerability in MeetMe products
Summary
User enumeration in the password reset module of the MeetMe authentication service in versions prior to 2024-09 allows an attacker to determine whether an email address is registered through specific error messages.
Severity
CWE
- CWE-204 - Observable Response Discrepancy
Assigner
References
1 reference
Date Public
2025-03-28 11:00
Credits
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CVE-2025-30150 (GCVE-0-2025-30150)
Vulnerability from cvelistv5 – Published: 2025-04-08 13:46 – Updated: 2025-04-08 18:46
VLAI
Title
Shopware 6 allows attackers to check for registered accounts through the store-api
Summary
Shopware 6 is an open commerce platform based on Symfony Framework and Vue. Through the store-api it is possible as a attacker to check if a specific e-mail address has an account in the shop. Using the store-api endpoint /store-api/account/recovery-password you get the response, which indicates clearly that there is no account for this customer. In contrast you get a success response if the account was found. This vulnerability is fixed in Shopware 6.6.10.3 or 6.5.8.17. For older versions of 6.4, corresponding security measures are also available via a plugin. For the full range of functions, we recommend updating to the latest Shopware version.
Severity
CWE
- CWE-204 - Observable Response Discrepancy
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/shopware/shopware/security/adv… | x_refsource_CONFIRM |
Impacted products
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CVE-2025-30280 (GCVE-0-2025-30280)
Vulnerability from cvelistv5 – Published: 2025-04-08 08:22 – Updated: 2025-06-10 15:17
VLAI
Summary
A vulnerability has been identified in Mendix Runtime V10 (All versions < V10.21.0), Mendix Runtime V10.12 (All versions < V10.12.16), Mendix Runtime V10.18 (All versions < V10.18.5), Mendix Runtime V10.6 (All versions < V10.6.22), Mendix Runtime V8 (All versions < V8.18.35), Mendix Runtime V9 (All versions < V9.24.34). Affected applications allow for entity enumeration due to distinguishable responses in certain client actions. This could allow an unauthenticated remote attacker to list all valid entities and attribute names of a Mendix Runtime-based application.
Severity
5.3 (Medium)
CWE
- CWE-204 - Observable Response Discrepancy
Assigner
References
1 reference
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Siemens | Mendix Runtime V10 |
Affected:
0 , < V10.21.0
(custom)
|
|
| Siemens | Mendix Runtime V10.12 |
Affected:
0 , < V10.12.16
(custom)
|
|
| Siemens | Mendix Runtime V10.18 |
Affected:
0 , < V10.18.5
(custom)
|
|
| Siemens | Mendix Runtime V10.6 |
Affected:
0 , < V10.6.22
(custom)
|
|
| Siemens | Mendix Runtime V8 |
Affected:
0 , < V8.18.35
(custom)
|
|
| Siemens | Mendix Runtime V9 |
Affected:
0 , < V9.24.34
(custom)
|
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CVE-2025-3092 (GCVE-0-2025-3092)
Vulnerability from cvelistv5 – Published: 2025-06-24 08:14 – Updated: 2025-06-24 13:55
VLAI
Title
MB connect line: Observable response discrepancy in mbCONNECT24/mymbCONNECT24
Summary
An unauthenticated remote attacker can enumerate valid user names from an unprotected endpoint.
Severity
7.5 (High)
CWE
- CWE-204 - Observable Response Discrepancy
Assigner
References
2 references
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Helmholz | myREX24 |
Affected:
0 , < 2.18.0
(semver)
|
|
| Helmholz | myREX24 |
Affected:
0 , < 2.16.5
(semver)
|
|
| Helmholz | myREX24.virtual |
Affected:
0 , < 2.18.0
(semver)
|
|
| Helmholz | myREX24.virtual |
Affected:
0 , < 2.16.5
(semver)
|
|
| MB connect line | mbCONNECT24 |
Affected:
0 , < 2.16.5
(semver)
|
|
| MB connect line | mymbCONNECT24 |
Affected:
0 , < 2.18.0
(semver)
|
|
| MB connect line | mymbCONNECT24 |
Affected:
0 , < 2.18.0
(semver)
|
|
| MB connect line | mymbCONNECT24 |
Affected:
0 , < 2.16.5
(semver)
|
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CVE-2025-31124 (GCVE-0-2025-31124)
Vulnerability from cvelistv5 – Published: 2025-03-31 19:38 – Updated: 2025-03-31 22:26
VLAI
Title
Zitadel allows User Enumeration by loginname attribute normalization
Summary
Zitadel is open-source identity infrastructure software. ZITADEL administrators can enable a setting called "Ignoring unknown usernames" which helps mitigate attacks that try to guess/enumerate usernames. If enabled, ZITADEL will show the password prompt even if the user doesn't exist and report "Username or Password invalid". While the setting was correctly respected during the login flow, the user's username was normalized leading to a disclosure of the user's existence. This vulnerability is fixed in 2.71.6, 2.70.8, 2.69.9, 2.68.9, 2.67.13, 2.66.16, 2.65.7, 2.64.6, and 2.63.9.
Severity
5.3 (Medium)
CWE
Assigner
References
11 references
| URL | Tags |
|---|---|
| https://github.com/zitadel/zitadel/security/advis… | x_refsource_CONFIRM |
| https://github.com/zitadel/zitadel/commit/14de8ec… | x_refsource_MISC |
| https://github.com/zitadel/zitadel/releases/tag/v2.63.9 | x_refsource_MISC |
| https://github.com/zitadel/zitadel/releases/tag/v2.64.6 | x_refsource_MISC |
| https://github.com/zitadel/zitadel/releases/tag/v2.65.7 | x_refsource_MISC |
| https://github.com/zitadel/zitadel/releases/tag/v… | x_refsource_MISC |
| https://github.com/zitadel/zitadel/releases/tag/v… | x_refsource_MISC |
| https://github.com/zitadel/zitadel/releases/tag/v2.68.9 | x_refsource_MISC |
| https://github.com/zitadel/zitadel/releases/tag/v2.69.9 | x_refsource_MISC |
| https://github.com/zitadel/zitadel/releases/tag/v2.70.8 | x_refsource_MISC |
| https://github.com/zitadel/zitadel/releases/tag/v2.71.6 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| zitadel | zitadel |
Affected:
>= 2.62.0, < 2.63.9
Affected: >= 2.64.0-rc.1, < 2.64.6 Affected: >= 2.65.0-rc.1, < 2.65.7 Affected: >= 2.66.0-rc.1, < 2.66.16 Affected: >= 2.67.0-rc.1, < 2.67.13 Affected: >= 2.68.0-rc.1, < 2.68.9 Affected: >= 2.69.0-rc.1, < 2.69.9 Affected: >= 2.70.0-rc.1, < 2.70.8 Affected: >= 2.71.0-rc.1, < 2.71.6 |
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CVE-2025-34155 (GCVE-0-2025-34155)
Vulnerability from cvelistv5 – Published: 2025-10-23 16:30 – Updated: 2026-05-14 02:07
VLAI
Title
Tibbo AggreGate Network Manager < 6.40.05 Login Functionality User Enumeration
Summary
Tibbo AggreGate Network Manager < 6.40.05 contains an observable response discrepancy in its login functionality. Authentication failure messages differ based on whether a supplied username exists or not, allowing an unauthenticated remote attacker to infer valid account identifiers. This can facilitate user enumeration and increase the likelihood of targeted brute-force or credential-stuffing attacks.
Severity
CWE
- CWE-204 - Observable Response Discrepancy
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://aggregate.digital/downloads.html | patch |
| https://aggregate.digital/products/network-manager.html | product |
| https://www.vulncheck.com/advisories/tibbo-aggreg… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Tibbo Systems | AggreGate Network Manager |
Affected:
0 , < 6.40.05
(custom)
|
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CVE-2025-34254 (GCVE-0-2025-34254)
Vulnerability from cvelistv5 – Published: 2025-10-16 18:52 – Updated: 2026-05-25 23:41
VLAI
Title
D-Link Nuclias Connect <= v1.3.1.4 Login Account Enumeration
Summary
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Severity
CWE
- CWE-204 - Observable Response Discrepancy
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.vulncheck.com/advisories/dlink-nuclia… | third-party-advisory |
| https://www.dlink.com/en/for-business/nuclias/nuc… | product |
| https://supportannouncement.us.dlink.com/security… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| D-Link | Nuclias Connect |
Affected:
0 , ≤ 1.3.1.4
(custom)
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CVE-2025-34255 (GCVE-0-2025-34255)
Vulnerability from cvelistv5 – Published: 2025-10-16 18:52 – Updated: 2026-05-25 23:41
VLAI
Title
D-Link Nuclias Connect <= v1.3.1.4 Forgot Password Account Enumeration
Summary
D-Link Nuclias Connect firmware versions <= 1.3.1.4 contain an observable response discrepancy vulnerability. The application's 'Forgot Password' endpoint returns distinct JSON responses depending on whether the supplied email address is associated with an existing account. Because the responses differ in the `data.exist` boolean value, an unauthenticated remote attacker can enumerate valid email addresses/accounts on the server. NOTE: D-Link states that a fix is under development.
Severity
CWE
- CWE-204 - Observable Response Discrepancy
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.vulncheck.com/advisories/dlink-nuclia… | third-party-advisory |
| https://www.dlink.com/en/for-business/nuclias/nuc… | product |
| https://supportannouncement.us.dlink.com/security… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| D-Link | Nuclias Connect |
Affected:
0 , ≤ 1.3.1.4
(custom)
|
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CVE-2025-3716 (GCVE-0-2025-3716)
Vulnerability from cvelistv5 – Published: 2026-03-30 07:30 – Updated: 2026-03-30 15:19
VLAI
Title
User enumeration in ESET Protect (on-prem)
Summary
User enumeration in ESET Protect (on-prem) via Response Timing.
Severity
CWE
- CWE-204 - Observable response discrepancy
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://help.eset.com/changelogs/?product=protect… | release-notes |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ESET, spol. s.r.o | ESET Protect (on-prem) |
Unaffected:
12.1.1.0
(custom)
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CVE-2025-3939 (GCVE-0-2025-3939)
Vulnerability from cvelistv5 – Published: 2025-05-22 12:33 – Updated: 2025-05-22 14:02
VLAI
Title
Observable Response Discrepancy
Summary
Observable Response Discrepancy vulnerability in Tridium Niagara Framework on Windows, Linux, QNX, Tridium Niagara Enterprise Security on Windows, Linux, QNX allows Cryptanalysis. This issue affects Niagara Framework: before 4.14.2, before 4.15.1, before 4.10.11; Niagara Enterprise Security: before 4.14.2, before 4.15.1, before 4.10.11.Tridium recommends upgrading to Niagara Framework and Enterprise Security versions 4.14.2u2, 4.15.u1, or 4.10u.11.
Severity
5.3 (Medium)
CWE
- CWE-204 - Observable Response Discrepancy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://honeywell.com/us/en/product-security#secu… | vendor-advisory |
| https://docs.niagara-community.com/category/tech_bull | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Tridium | Niagara Framework |
Affected:
0 , < 4.14.2
(custom)
Affected: 0 , < 4.15.1 (custom) Affected: 0 , < 4.10.11 (custom) |
|
| Tridium | Niagara Enterprise Security |
Affected:
0 , < 4.14.2
(custom)
Affected: 0 , < 4.15.1 (custom) Affected: 0 , < 4.10.11 (custom) |
Date Public
2025-05-08 16:59
Credits
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Mitigation ID: MIT-46
Phase: Architecture and Design
Strategy: Separation of Privilege
Description:
- Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
- Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
Mitigation ID: MIT-39
Phase: Implementation
Description:
- Ensure that error messages only contain minimal details that are useful to the intended audience and no one else. The messages need to strike the balance between being too cryptic (which can confuse users) or being too detailed (which may reveal more than intended). The messages should not reveal the methods that were used to determine the error. Attackers can use detailed information to refine or optimize their original attack, thereby increasing their chances of success.
- If errors must be captured in some detail, record them in log messages, but consider what could occur if the log messages can be viewed by attackers. Highly sensitive information such as passwords should never be saved to log files.
- Avoid inconsistent messaging that might accidentally tip off an attacker about internal state, such as whether a user account exists or not.
CAPEC-331: ICMP IP Total Length Field Probe
An adversary sends a UDP packet to a closed port on the target machine to solicit an IP Header's total length field value within the echoed 'Port Unreachable" error message. This type of behavior is useful for building a signature-base of operating system responses, particularly when error messages contain other types of information that is useful identifying specific operating system responses.
CAPEC-332: ICMP IP 'ID' Field Error Message Probe
An adversary sends a UDP datagram having an assigned value to its internet identification field (ID) to a closed port on a target to observe the manner in which this bit is echoed back in the ICMP error message. This allows the attacker to construct a fingerprint of specific OS behaviors.
CAPEC-541: Application Fingerprinting
An adversary engages in fingerprinting activities to determine the type or version of an application installed on a remote target.
CAPEC-580: System Footprinting
An adversary engages in active probing and exploration activities to determine security information about a remote target system. Often times adversaries will rely on remote applications that can be probed for system configurations.