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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
1Fastify
1Bearer Auth
Jun 17, 2026
Jul 14, 2022
N/A· v4
7.5 HIGH· v3
N/A· v2
@fastify/bearer-auth is a Fastify plugin to require bearer Authorization headers. @fastify/bearer-auth prior to versions 7.0.2 and 8.0.1 does not securely use crypto.timingSafeEqual. A malicious attacker could estimate t...Show more
@fastify/bearer-auth is a Fastify plugin to require bearer Authorization headers. @fastify/bearer-auth prior to versions 7.0.2 and 8.0.1 does not securely use crypto.timingSafeEqual. A malicious attacker could estimate the length of one valid bearer token. According to the corresponding RFC 6750, the bearer token has only base64 valid characters, reducing the range of characters for a brute force attack. Version 7.0.2 and 8.0.1 of @fastify/bearer-auth contain a patch. There are currently no known workarounds. The package fastify-bearer-auth, which covers versions 6.0.3 and prior, is also vulnerable starting at version 5.0.1. Users of fastify-bearer-auth should upgrade to a patched version of @fastify/bearer-auth.Show less
1Cisco
2Unified Communications Manager
Unity Connection
Jun 17, 2026
Jul 6, 2022
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
A vulnerability in Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), and Cisco Unity Connection could allow an unauthenticated, remote at...Show more
A vulnerability in Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), and Cisco Unity Connection could allow an unauthenticated, remote attacker to perform a timing attack. This vulnerability is due to insufficient protection of a system password. An attacker could exploit this vulnerability by observing the time it takes the system to respond to various queries. A successful exploit could allow the attacker to determine a sensitive system password.Show less
1Melag
1Ftp Server
Jun 17, 2026
Jun 24, 2022
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
A user enumeration vulnerability in MELAG FTP Server 2.2.0.4 allows an attacker to identify valid FTP usernames.
1Jenkins
1Jenkins
Jun 17, 2026
Jun 23, 2022
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
In Jenkins 2.355 and earlier, LTS 2.332.3 and earlier, an observable timing discrepancy on the login form allows distinguishing between login attempts with an invalid username, and login attempts with a valid username an...Show more
In Jenkins 2.355 and earlier, LTS 2.332.3 and earlier, an observable timing discrepancy on the login form allows distinguishing between login attempts with an invalid username, and login attempts with a valid username and wrong password, when using the Jenkins user database security realm.Show less
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-
Jun 17, 2026
Jun 15, 2022
N/A· v4
6.5 MEDIUM· v3
4.0 MEDIUM· v2
Observable behavioral in power management throttling for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via network access.
1Amd
142A10 9600p Firmware
A10 9630p FirmwareA12 9700p Firmware+139 more
Jun 17, 2026
Jun 15, 2022
N/A· v4
6.5 MEDIUM· v3
4.0 MEDIUM· v2
A potential vulnerability in some AMD processors using frequency scaling may allow an authenticated attacker to execute a timing attack to potentially enable information disclosure.
1Siemens
1Sinema Remote Connect Server
Jun 17, 2026
Jun 14, 2022
N/A· v4
5.9 MEDIUM· v3
4.3 MEDIUM· v2
A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.1). An attacker in machine-in-the-middle could obtain plaintext secret values by observing length differences during a series of gues...Show more
A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.1). An attacker in machine-in-the-middle could obtain plaintext secret values by observing length differences during a series of guesses in which a string in an HTTP request URL potentially matches an unknown string in an HTTP response body, aka a "BREACH" attack.Show less
1Zyxel
4Gs1200 5 Firmware
Gs1200 5hp FirmwareGs1200 8 Firmware+1 more
Jun 17, 2026
Jun 9, 2022
N/A· v4
6.2 MEDIUM· v3
2.1 LOW· v2
An improper control of interaction frequency vulnerability in Zyxel GS1200 series switches could allow a local attacker to guess the password by using a timing side-channel attack.
1Opswat
1Metadefender
Jun 17, 2026
Jun 8, 2022
N/A· v4
4.3 MEDIUM· v3
4.0 MEDIUM· v2
As a result of an observable discrepancy in returned messages, OPSWAT MetaDefender Core (MDCore) before 5.1.2 could allow an authenticated user to enumerate filenames on the server.
1Totp Rs Project
1Totp Rs
Jun 17, 2026
May 20, 2022
N/A· v4
4.4 MEDIUM· v3
3.5 LOW· v2
totp-rs is a Rust library that permits the creation of 2FA authentification tokens per time-based one-time password (TOTP). Prior to version 1.1.0, token comparison was not constant time, and could theorically be used to...Show more
totp-rs is a Rust library that permits the creation of 2FA authentification tokens per time-based one-time password (TOTP). Prior to version 1.1.0, token comparison was not constant time, and could theorically be used to guess value of an TOTP token, and thus reuse it in the same time window. The attacker would have to know the password beforehand nonetheless. Starting with patched version 1.1.0, the library uses constant-time comparison. There are currently no known workarounds.Show less
1Siemens
4Desigo Dxr2 Firmware
Desigo Pxc3 FirmwareDesigo Pxc4 Firmware+1 more
Jun 17, 2026
May 20, 2022
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
A vulnerability has been identified in Desigo DXR2 (All versions < V01.21.142.5-22), Desigo PXC3 (All versions < V01.21.142.4-18), Desigo PXC4 (All versions < V02.20.142.10-10884), Desigo PXC5 (All versions < V02.20.142....Show more
A vulnerability has been identified in Desigo DXR2 (All versions < V01.21.142.5-22), Desigo PXC3 (All versions < V01.21.142.4-18), Desigo PXC4 (All versions < V02.20.142.10-10884), Desigo PXC5 (All versions < V02.20.142.10-10884). The login functionality of the application fails to normalize the response times of login attempts performed with wrong usernames with the ones executed with correct usernames. A remote unauthenticated attacker could exploit this side-channel information to perform a username enumeration attack and identify valid usernames.Show less
1Intel
8Atom Processors Firmware
Celeron Processors FirmwareCore Processors Firmware+5 more
Jun 17, 2026
May 12, 2022
N/A· v4
5.5 MEDIUM· v3
2.1 LOW· v2
Observable behavioral discrepancy in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access.
1Amd
99Epyc 7001 Firmware
Epyc 7002 FirmwareEpyc 7003 Firmware+96 more
Jun 17, 2026
May 11, 2022
N/A· v4
6.5 MEDIUM· v3
2.1 LOW· v2
An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on AMD CPUs by monitoring ciphertext values over time.
1Splunk
1Splunk
Jun 17, 2026
May 6, 2022
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
The Splunk Enterprise REST API allows enumeration of usernames via the lockout error message. The potential vulnerability impacts Splunk Enterprise instances before 8.1.7 when configured to repress verbose login errors.
1Carrier
1Hills Comnav Firmware
Jun 17, 2026
Apr 20, 2022
N/A· v4
5.5 MEDIUM· v3
2.1 LOW· v2
Hills ComNav version 3002-19 suffers from a weak communication channel. Traffic across the local network for the configuration pages can be viewed by a malicious actor. The size of certain communications packets are pred...Show more
Hills ComNav version 3002-19 suffers from a weak communication channel. Traffic across the local network for the configuration pages can be viewed by a malicious actor. The size of certain communications packets are predictable. This would allow an attacker to learn the state of the system if they can observe the traffic. This would be possible even if the traffic were encrypted, e.g., using WPA2, as the packet sizes would remain observable. The communication encryption scheme is theoretically sound, but is not strong enough for the level of protection required.Show less
1Waycrate
1Swhkd
Jun 17, 2026
Apr 14, 2022
N/A· v4
3.3 LOW· v3
2.1 LOW· v2
SWHKD 1.1.5 allows arbitrary file-existence tests via the -c option.
1Ibm
1Mq Appliance
Jun 17, 2026
Apr 5, 2022
N/A· v4
6.5 MEDIUM· v3
4.0 MEDIUM· v2
IBM MQ Appliance 9.2 CD and 9.2 LTS could allow an attacker to enumerate account credentials due to an observable discrepancy in valid and invalid login attempts. IBM X-Force ID: 220487.
1Google
1Android
Jun 17, 2026
Mar 30, 2022
N/A· v4
5.5 MEDIUM· v3
2.1 LOW· v2
In WallpaperManagerService, there is a possible way to determine whether an app is installed, without query permissions, due to side channel information disclosure. This could lead to local information disclosure with no...Show more
In WallpaperManagerService, there is a possible way to determine whether an app is installed, without query permissions, due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-194112606Show less
1Google
1Android
Jun 17, 2026
Mar 30, 2022
N/A· v4
5.5 MEDIUM· v3
2.1 LOW· v2
In TelecomManager, there is a possible way to check if a particular self managed phone account was registered on the device due to side channel information disclosure. This could lead to local information disclosure with...Show more
In TelecomManager, there is a possible way to check if a particular self managed phone account was registered on the device due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-191768014Show less
1Google
1Android
Jun 17, 2026
Mar 30, 2022
N/A· v4
5.5 MEDIUM· v3
2.1 LOW· v2
In People, there is a possible way to determine whether an app is installed, without query permissions, due to side channel information disclosure. This could lead to local information disclosure with no additional execu...Show more
In People, there is a possible way to determine whether an app is installed, without query permissions, due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-206465854Show less