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CWE-203

751 CVEs • Abstraction: Base

Observable Discrepancy

The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.

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CVEs (751)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Nvidia
1Dgx H100 Firmware
Jun 17, 2026
Sep 20, 2023
N/A· v4
8.1 HIGH· v3
N/A· v2
NVIDIA DGX H100 BMC and DGX A100 BMC contains a vulnerability in the host KVM daemon, where an unauthenticated attacker may cause a leak of another user’s session token by observing timing discrepancies between server re...Show more
NVIDIA DGX H100 BMC and DGX A100 BMC contains a vulnerability in the host KVM daemon, where an unauthenticated attacker may cause a leak of another user’s session token by observing timing discrepancies between server responses. A successful exploit of this vulnerability may lead to information disclosure, escalation of privileges, and data tampering.Show less
1Fujitsu
1Arconte Aurea
Jun 17, 2026
Sep 19, 2023
N/A· v4
5.3 MEDIUM· v3
N/A· v2
User enumeration vulnerability in Arconte Áurea 1.5.0.0 version. The exploitation of this vulnerability could allow an attacker to obtain a list of registered users in the application, obtaining the necessary information...Show more
User enumeration vulnerability in Arconte Áurea 1.5.0.0 version. The exploitation of this vulnerability could allow an attacker to obtain a list of registered users in the application, obtaining the necessary information to perform more complex attacks on the platform.Show less
1Piccolo Orm
1Piccolo
Jun 17, 2026
Sep 12, 2023
N/A· v4
5.3 MEDIUM· v3
N/A· v2
Piccolo is an ORM and query builder which supports asyncio. In versions 0.120.0 and prior, the implementation of `BaseUser.login` leaks enough information to a malicious user such that they would be able to successfully...Show more
Piccolo is an ORM and query builder which supports asyncio. In versions 0.120.0 and prior, the implementation of `BaseUser.login` leaks enough information to a malicious user such that they would be able to successfully generate a list of valid users on the platform. As Piccolo on its own does not also enforce strong passwords, these lists of valid accounts are likely to be used in a password spray attack with the outcome being attempted takeover of user accounts on the platform. The impact of this vulnerability is minor as it requires chaining with other attack vectors in order to gain more then simply a list of valid users on the underlying platform. The likelihood of this vulnerability is possible as it requires minimal skills to pull off, especially given the underlying login functionality for Piccolo based sites is open source. This issue has been patched in version 0.121.0.Show less
1Password Recovery Project
1Password Recovery
Jun 17, 2026
Sep 4, 2023
N/A· v4
5.3 MEDIUM· v3
N/A· v2
User enumeration vulnerability in Password Recovery plugin 1.2 version for Roundcube, which could allow a remote attacker to create a test script against the password recovery function to enumerate all users in the datab...Show more
User enumeration vulnerability in Password Recovery plugin 1.2 version for Roundcube, which could allow a remote attacker to create a test script against the password recovery function to enumerate all users in the database.Show less
1Goauthentik
1Authentik
Jun 17, 2026
Aug 29, 2023
N/A· v4
5.3 MEDIUM· v3
N/A· v2
goauthentik is an open-source Identity Provider. In affected versions using a recovery flow with an identification stage an attacker is able to determine if a username exists. Only setups configured with a recovery flow...Show more
goauthentik is an open-source Identity Provider. In affected versions using a recovery flow with an identification stage an attacker is able to determine if a username exists. Only setups configured with a recovery flow are impacted by this. Anyone with a user account on a system with the recovery flow described above is susceptible to having their username/email revealed as existing. An attacker can easily enumerate and check users' existence using the recovery flow, as a clear message is shown when a user doesn't exist. Depending on configuration this can either be done by username, email, or both. This issue has been addressed in versions 2023.5.6 and 2023.6.2. Users are advised to upgrade. There are no known workarounds for this issue.Show less
1Phpjabbers
1Callback Widget
Jun 17, 2026
Aug 28, 2023
N/A· v4
9.8 CRITICAL· v3
N/A· v2
User enumeration is found in PHPJabbers Callback Widget v1.0. This issue occurs during password recovery, where a difference in messages could allow an attacker to determine if the user is valid or not, enabling a brute...Show more
User enumeration is found in PHPJabbers Callback Widget v1.0. This issue occurs during password recovery, where a difference in messages could allow an attacker to determine if the user is valid or not, enabling a brute force attack with valid users.Show less
1Ibm
2Cics Tx
Txseries For Multiplatform
Jun 17, 2026
Aug 22, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
IBM GSKit-Crypto could allow a remote attacker to obtain sensitive information, caused by a timing-based side channel in the RSA Decryption implementation. By sending an overly large number of trial messages for decrypti...Show more
IBM GSKit-Crypto could allow a remote attacker to obtain sensitive information, caused by a timing-based side channel in the RSA Decryption implementation. By sending an overly large number of trial messages for decryption, an attacker could exploit this vulnerability to obtain sensitive information.Show less
1Oppia
1Oppia
Jun 17, 2026
Aug 16, 2023
N/A· v4
5.3 MEDIUM· v3
N/A· v2
Oppia is an online learning platform. When comparing a received CSRF token against the expected token, Oppia uses the string equality operator (`==`), which is not safe against timing attacks. By repeatedly submitting in...Show more
Oppia is an online learning platform. When comparing a received CSRF token against the expected token, Oppia uses the string equality operator (`==`), which is not safe against timing attacks. By repeatedly submitting invalid tokens, an attacker can brute-force the expected CSRF token character by character. Once they have recovered the token, they can then submit a forged request on behalf of a logged-in user and execute privileged actions on that user's behalf. In particular the function to validate received CSRF tokens is at `oppia.core.controllers.base.CsrfTokenManager.is_csrf_token_valid`. An attacker who can lure a logged-in Oppia user to a malicious website can perform any change on Oppia that the user is authorized to do, including changing profile information; creating, deleting, and changing explorations; etc. Note that the attacker cannot change a user's login credentials. An attack would need to complete within 1 second because every second, the time used in computing the token changes. This issue has been addressed in commit `b89bf80837` which has been included in release `3.3.2-hotfix-2`. Users are advised to upgrade. There are no known workarounds for this vulnerability.Show less
1Jenkins
1Tuleap Authentication
Jun 17, 2026
Aug 16, 2023
N/A· v4
5.9 MEDIUM· v3
N/A· v2
Jenkins Tuleap Authentication Plugin 1.1.20 and earlier uses a non-constant time comparison function when validating an authentication token allowing attackers to use statistical methods to obtain a valid authentication...Show more
Jenkins Tuleap Authentication Plugin 1.1.20 and earlier uses a non-constant time comparison function when validating an authentication token allowing attackers to use statistical methods to obtain a valid authentication token.Show less
1Apple
2Ipados
Iphone Os
Jun 17, 2026
Aug 14, 2023
N/A· v4
2.4 LOW· v3
N/A· v2
This issue was addressed by restricting options offered on a locked device. This issue is fixed in iOS 16.4 and iPadOS 16.4. A person with physical access to an iOS device may be able to view the last image used in Magni...Show more
This issue was addressed by restricting options offered on a locked device. This issue is fixed in iOS 16.4 and iPadOS 16.4. A person with physical access to an iOS device may be able to view the last image used in Magnifier from the lock screen.Show less
5Debian
IntelNetapp+2 more
534All Flash Fabric Attached Storage 2820
All Flash Fabric Attached Storage 500fAll Flash Fabric Attached Storage 8300+531 more
Jun 17, 2026
Aug 11, 2023
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Information exposure through microarchitectural state after transient execution in certain vector execution units for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure...Show more
Information exposure through microarchitectural state after transient execution in certain vector execution units for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.Show less
4Amd
DebianFedoraproject+1 more
155Debian Linux
Epyc 72f3 FirmwareEpyc 7313 Firmware+152 more
Jun 17, 2026
Aug 8, 2023
N/A· v4
4.7 MEDIUM· v3
N/A· v2
A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction. This may result in speculative execution at an attacker-controlled address, potentially leading to...Show more
A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction. This may result in speculative execution at an attacker-controlled address, potentially leading to information disclosure. Show less
-
-
Jun 17, 2026
Aug 1, 2023
N/A· v4
4.7 MEDIUM· v3
N/A· v2
A potential power side-channel vulnerability in AMD processors may allow an authenticated attacker to monitor the CPU power consumption as the data in a cache line changes over time potentially resulting in a leak of sen...Show more
A potential power side-channel vulnerability in AMD processors may allow an authenticated attacker to monitor the CPU power consumption as the data in a cache line changes over time potentially resulting in a leak of sensitive information. Show less
1Hashicorp
1Vault
Jun 17, 2026
Jul 31, 2023
N/A· v4
5.3 MEDIUM· v3
N/A· v2
HashiCorp's Vault and Vault Enterprise are vulnerable to user enumeration when using the LDAP auth method. An attacker may submit requests of existent and non-existent LDAP users and observe the response from Vault to ch...Show more
HashiCorp's Vault and Vault Enterprise are vulnerable to user enumeration when using the LDAP auth method. An attacker may submit requests of existent and non-existent LDAP users and observe the response from Vault to check if the account is valid on the LDAP server. This vulnerability is fixed in Vault 1.14.1 and 1.13.5.Show less
1Tadirantele
1Aeonix
Jun 17, 2026
Jul 30, 2023
N/A· v4
5.3 MEDIUM· v3
N/A· v2
Tadiran Telecom Aeonix - CWE-204: Observable Response Discrepancy
142gears
1Suremdm
Jun 17, 2026
Jul 25, 2023
N/A· v4
5.3 MEDIUM· v3
N/A· v2
Username enumeration is possible through Bypassing CAPTCHA in On-premise SureMDM Solution on Windows deployment allows attacker to enumerate local user information via error message. This issue affects SureMDM On-premis...Show more
Username enumeration is possible through Bypassing CAPTCHA in On-premise SureMDM Solution on Windows deployment allows attacker to enumerate local user information via error message. This issue affects SureMDM On-premise: 6.31 and below versionShow less
2Linux
Redhat
2Enterprise Linux
Linux Kernel
Jul 21, 2026
Jul 24, 2023
N/A· v4
7.8 HIGH· v3
N/A· v2
A possible unauthorized memory access flaw was found in the Linux kernel's cpu_entry_area mapping of X86 CPU data to memory, where a user may guess the location of exception stacks or other important data. Based on the p...Show more
A possible unauthorized memory access flaw was found in the Linux kernel's cpu_entry_area mapping of X86 CPU data to memory, where a user may guess the location of exception stacks or other important data. Based on the previous CVE-2023-0597, the 'Randomize per-cpu entry area' feature was implemented in /arch/x86/mm/cpu_entry_area.c, which works through the init_cea_offsets() function when KASLR is enabled. However, despite this feature, there is still a risk of per-cpu entry area leaks. This issue could allow a local user to gain access to some important data with memory in an expected location and potentially escalate their privileges on the system.Show less
1Totolink
1Cp300+ Firmware
Jun 17, 2026
Jul 17, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
TOTOLINK CP300+ V5.2cu.7594 contains a Denial of Service vulnerability in function RebootSystem of the file lib/cste_modules/system which can reboot the system.
1Amd
88Epyc 5552 Firmware
Epyc 7232p FirmwareEpyc 7251 Firmware+85 more
Jun 17, 2026
Jul 11, 2023
N/A· v4
6.5 MEDIUM· v3
N/A· v2
A potential power side-channel vulnerability in some AMD processors may allow an authenticated attacker to use the power reporting functionality to monitor a program’s execution inside an AMD SEV VM potentially resultin...Show more
A potential power side-channel vulnerability in some AMD processors may allow an authenticated attacker to use the power reporting functionality to monitor a program’s execution inside an AMD SEV VM potentially resulting in a leak of sensitive information. Show less
1Sick
1Icr890 4 Firmware
Jun 17, 2026
Jul 10, 2023
N/A· v4
5.3 MEDIUM· v3
N/A· v2
Observable Response Discrepancy in the SICK ICR890-4 could allow a remote attacker to identify valid usernames for the FTP server from the response given during a failed login attempt.