CWE-203
Observable Discrepancy
Description
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor.
Hierarchy (View 1000)
Related attack patterns (CAPEC)
CAPEC-189
CVEs mapped to this weakness (798)
page 17 of 40| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2019-19338 | Med | 0.36 | 5.5 | 0.00 | Jul 13, 2020 | A flaw was found in the fix for CVE-2019-11135, in the Linux upstream kernel versions before 5.5 where, the way Intel CPUs handle speculative execution of instructions when a TSX Asynchronous Abort (TAA) error occurs. When a guest is running on a host CPU affected by the TAA… | ||
| CVE-2020-13844 | Med | 0.36 | 5.5 | 0.01 | Jun 8, 2020 | Arm Armv8-A core implementations utilizing speculative execution past unconditional changes in control flow may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka "straight-line speculation." | ||
| CVE-2019-14067 | Med | 0.36 | 5.5 | 0.00 | Jun 2, 2020 | Using non-time-constant functions like memcmp to compare sensitive data can lead to information leakage through timing side channel issue. in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT,… | ||
| CVE-2019-14007 | Med | 0.36 | 5.5 | 0.00 | Apr 16, 2020 | Due to the use of non-time-constant comparison functions there is issue in timing side channels which can be used as a potential side channel for SUI corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT,… | ||
| CVE-2019-10483 | Med | 0.36 | 5.5 | 0.00 | Apr 16, 2020 | Side channel issue in QTEE due to usage of non-time-constant comparison function such as memcmp or strcmp in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon… | ||
| CVE-2019-9472 | Med | 0.36 | 5.5 | 0.00 | Jan 6, 2020 | In DCRYPTO_equals of compare.c, there is a possible timing attack due to improperly used crypto. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android… | ||
| CVE-2018-16868 | Med | 0.36 | 5.6 | 0.01 | Dec 3, 2018 | A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run process on the same physical core as the victim process, could use this to extract plaintext or in… | ||
| CVE-2026-28490 | Med | 0.35 | 6.5 | 0.00 | Mar 16, 2026 | Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.9, a cryptographic padding oracle vulnerability was identified in the Authlib Python library concerning the implementation of the JSON Web Encryption (JWE) RSA1_5 key management… | ||
| CVE-2025-59716 | Med | 0.35 | 5.3 | 0.01 | Nov 5, 2025 | ownCloud Guests before 0.12.5 allows unauthenticated user enumeration via the /apps/guests/register/{email}/{token} endpoint. Because of insufficient validation of the supplied token in showPasswordForm, the server responds differently when an e-mail address corresponds to a… | ||
| CVE-2024-36510 | Med | 0.35 | 5.3 | 0.01 | Jan 14, 2025 | An observable response discrepancy vulnerability [CWE-204] in FortiClientEMS 7.4.0, 7.2.0 through 7.2.4, 7.0 all versions, and FortiSOAR 7.5.0, 7.4.0 through 7.4.4, 7.3.0 through 7.3.2, 7.2 all versions, 7.0 all versions, 6.4 all versions may allow an unauthenticated attacker to… | ||
| CVE-2020-26062 | Med | 0.35 | 5.3 | 0.01 | Nov 18, 2024 | A vulnerability in Cisco Integrated Management Controller could allow an unauthenticated, remote attacker to enumerate valid usernames within the vulnerable application. The vulnerability is due to differences in authentication responses sent back from the application as… | ||
| CVE-2024-48644 | Med | 0.35 | 5.3 | 0.01 | Oct 22, 2024 | Accounts enumeration vulnerability in the Login Component of Reolink Duo 2 WiFi Camera (Firmware Version v3.0.0.1889_23031701) allows remote attackers to determine valid user accounts via login attempts. This can lead to the enumeration of user accounts and potentially… | ||
| CVE-2023-46739 | Med | 0.35 | 6.5 | 0.00 | Jan 3, 2024 | CubeFS is an open-source cloud-native file storage system. A vulnerability was found during in the CubeFS master component in versions prior to 3.3.1 that could allow an untrusted attacker to steal user passwords by carrying out a timing attack. The root case of the… | ||
| CVE-2023-47102 | Med | 0.35 | 5.3 | 0.01 | Nov 7, 2023 | UrBackup Server 2.5.31 allows brute-force enumeration of user accounts because a failure message confirms that a username is not valid. | ||
| CVE-2023-5722 | Med | 0.35 | 5.3 | 0.01 | Oct 25, 2023 | Using iterative requests an attacker was able to learn the size of an opaque response, as well as the contents of a server-supplied Vary header. This vulnerability affects Firefox < 119. | ||
| CVE-2023-44216 | Med | 0.35 | 5.3 | 0.02 | Sep 27, 2023 | PVRIC (PowerVR Image Compression) on Imagination 2018 and later GPU devices offers software-transparent compression that enables cross-origin pixel-stealing attacks against feTurbulence and feBlend in the SVG Filter specification, aka a GPU.zip issue. For example, attackers can… | ||
| CVE-2023-23449 | Med | 0.35 | 5.3 | 0.01 | May 15, 2023 | Observable Response Discrepancy in SICK FTMg AIR FLOW SENSOR with Partnumbers 1100214, 1100215, 1100216, 1120114, 1120116, 1122524, 1122526 allows a remote attacker to gain information about valid usernames by analyzing challenge responses from the server via the REST interface. | ||
| CVE-2023-30458 | Med | 0.35 | 5.3 | 0.01 | Apr 24, 2023 | A username enumeration issue was discovered in Medicine Tracker System 1.0. The login functionality allows a malicious user to guess a valid username due to a different response time from invalid usernames. When one enters a valid username, the response time increases depending… | ||
| CVE-2022-30332 | Med | 0.35 | 5.3 | 0.01 | Jan 10, 2023 | In Talend Administration Center 7.3.1.20200219 before TAC-15950, the Forgot Password feature provides different error messages for invalid reset attempts depending on whether the email address is associated with any account. This allows remote attackers to enumerate accounts via… | ||
| CVE-2022-41765 | Med | 0.35 | 5.3 | 0.01 | Dec 26, 2022 | An issue was discovered in MediaWiki before 1.35.8, 1.36.x and 1.37.x before 1.37.5, and 1.38.x before 1.38.3. HTMLUserTextField exposes the existence of hidden users. |
- risk 0.36cvss 5.5epss 0.00
A flaw was found in the fix for CVE-2019-11135, in the Linux upstream kernel versions before 5.5 where, the way Intel CPUs handle speculative execution of instructions when a TSX Asynchronous Abort (TAA) error occurs. When a guest is running on a host CPU affected by the TAA…
- risk 0.36cvss 5.5epss 0.01
Arm Armv8-A core implementations utilizing speculative execution past unconditional changes in control flow may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka "straight-line speculation."
- risk 0.36cvss 5.5epss 0.00
Using non-time-constant functions like memcmp to compare sensitive data can lead to information leakage through timing side channel issue. in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT,…
- risk 0.36cvss 5.5epss 0.00
Due to the use of non-time-constant comparison functions there is issue in timing side channels which can be used as a potential side channel for SUI corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT,…
- risk 0.36cvss 5.5epss 0.00
Side channel issue in QTEE due to usage of non-time-constant comparison function such as memcmp or strcmp in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon…
- risk 0.36cvss 5.5epss 0.00
In DCRYPTO_equals of compare.c, there is a possible timing attack due to improperly used crypto. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android…
- risk 0.36cvss 5.6epss 0.01
A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run process on the same physical core as the victim process, could use this to extract plaintext or in…
- risk 0.35cvss 6.5epss 0.00
Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.9, a cryptographic padding oracle vulnerability was identified in the Authlib Python library concerning the implementation of the JSON Web Encryption (JWE) RSA1_5 key management…
- risk 0.35cvss 5.3epss 0.01
ownCloud Guests before 0.12.5 allows unauthenticated user enumeration via the /apps/guests/register/{email}/{token} endpoint. Because of insufficient validation of the supplied token in showPasswordForm, the server responds differently when an e-mail address corresponds to a…
- risk 0.35cvss 5.3epss 0.01
An observable response discrepancy vulnerability [CWE-204] in FortiClientEMS 7.4.0, 7.2.0 through 7.2.4, 7.0 all versions, and FortiSOAR 7.5.0, 7.4.0 through 7.4.4, 7.3.0 through 7.3.2, 7.2 all versions, 7.0 all versions, 6.4 all versions may allow an unauthenticated attacker to…
- risk 0.35cvss 5.3epss 0.01
A vulnerability in Cisco Integrated Management Controller could allow an unauthenticated, remote attacker to enumerate valid usernames within the vulnerable application. The vulnerability is due to differences in authentication responses sent back from the application as…
- risk 0.35cvss 5.3epss 0.01
Accounts enumeration vulnerability in the Login Component of Reolink Duo 2 WiFi Camera (Firmware Version v3.0.0.1889_23031701) allows remote attackers to determine valid user accounts via login attempts. This can lead to the enumeration of user accounts and potentially…
- risk 0.35cvss 6.5epss 0.00
CubeFS is an open-source cloud-native file storage system. A vulnerability was found during in the CubeFS master component in versions prior to 3.3.1 that could allow an untrusted attacker to steal user passwords by carrying out a timing attack. The root case of the…
- risk 0.35cvss 5.3epss 0.01
UrBackup Server 2.5.31 allows brute-force enumeration of user accounts because a failure message confirms that a username is not valid.
- risk 0.35cvss 5.3epss 0.01
Using iterative requests an attacker was able to learn the size of an opaque response, as well as the contents of a server-supplied Vary header. This vulnerability affects Firefox < 119.
- risk 0.35cvss 5.3epss 0.02
PVRIC (PowerVR Image Compression) on Imagination 2018 and later GPU devices offers software-transparent compression that enables cross-origin pixel-stealing attacks against feTurbulence and feBlend in the SVG Filter specification, aka a GPU.zip issue. For example, attackers can…
- risk 0.35cvss 5.3epss 0.01
Observable Response Discrepancy in SICK FTMg AIR FLOW SENSOR with Partnumbers 1100214, 1100215, 1100216, 1120114, 1120116, 1122524, 1122526 allows a remote attacker to gain information about valid usernames by analyzing challenge responses from the server via the REST interface.
- risk 0.35cvss 5.3epss 0.01
A username enumeration issue was discovered in Medicine Tracker System 1.0. The login functionality allows a malicious user to guess a valid username due to a different response time from invalid usernames. When one enters a valid username, the response time increases depending…
- risk 0.35cvss 5.3epss 0.01
In Talend Administration Center 7.3.1.20200219 before TAC-15950, the Forgot Password feature provides different error messages for invalid reset attempts depending on whether the email address is associated with any account. This allows remote attackers to enumerate accounts via…
- risk 0.35cvss 5.3epss 0.01
An issue was discovered in MediaWiki before 1.35.8, 1.36.x and 1.37.x before 1.37.5, and 1.38.x before 1.38.3. HTMLUserTextField exposes the existence of hidden users.