VYPR

CWE-208

Observable Timing Discrepancy

BaseIncomplete

Description

Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.

In security-relevant contexts, even small variations in timing can be exploited by attackers to indirectly infer certain details about the product's internal operations. For example, in some cryptographic algorithms, attackers can use timing differences to infer certain properties about a private key, making the key easier to guess. Timing discrepancies effectively form a timing side channel.

Hierarchy (View 1000)

Parents

Children

Related attack patterns (CAPEC)

CAPEC-462 · CAPEC-541 · CAPEC-580

CVEs mapped to this weakness (195)

page 1 of 10
  • CVE-2023-41313CriMar 12, 2024
    risk 0.64cvss 9.8epss 0.01

    The authentication method in Apache Doris versions before 2.0.0 was vulnerable to timing attacks. Users are recommended to upgrade to version 2.0.0 + or 1.2.8, which fixes this issue.

  • CVE-2021-43298CriJan 25, 2022
    risk 0.64cvss 9.8epss 0.02

    The code that performs password matching when using 'Basic' HTTP authentication does not use a constant-time memcmp and has no rate-limiting. This means that an unauthenticated network attacker can brute-force the HTTP basic password, byte-by-byte, by recording the webserver's…

  • CVE-2026-16315HigAug 6, 2026
    risk 0.57cvss 8.7epss 0.00

    OMICRON StationGuard before version 4.10 contains a cryptographic timing side-channel vulnerability in the backend authentication mechanism that may allow an unauthenticated attacker to forge valid authentication credentials, bypass authentication and authorization, and…

  • CVE-2026-23519CriJan 15, 2026
    risk 0.57cvss 9.8epss 0.01

    RustCrypto CMOV provides conditional move CPU intrinsics which are guaranteed on major platforms to execute in constant-time and not be rewritten as branches by the compiler. Prior to 0.4.4, the thumbv6m-none-eabi (Cortex M0, M0+ and M1) compiler emits non-constant time assembly…

  • CVE-2016-7036CriJan 23, 2017
    risk 0.57cvss 9.8epss 0.02

    python-jose before 1.3.2 allows attackers to have unspecified impact by leveraging failure to use a constant time comparison for HMAC keys.

  • CVE-2026-43606HigAug 11, 2026
    risk 0.55cvss epss 0.00

    Observable Timing Discrepancy in the AMD Vitis Libraries ECDSA secp256k1 component could allow attackers with local access to potentially perform timing analysis or electromagnetic emanation attacks, resulting in high confidentiality and integrity impact due to the exposure of…

  • CVE-2026-16731HigAug 6, 2026
    risk 0.54cvss epss 0.00

    OMICRON StationScout before version 3.05 contains a cryptographic timing side-channel vulnerability in the backend authentication mechanism that may allow an unauthenticated attacker to forge valid authentication credentials, bypass authentication and authorization, and…

  • CVE-2024-29995HigAug 13, 2024
    risk 0.53cvss 8.1epss 0.01

    Windows Kerberos Elevation of Privilege Vulnerability

  • CVE-2026-41588CriMay 8, 2026
    risk 0.52cvss 9.0epss 0.00

    RELATE is a web-based courseware package. Prior to commit 2f68e16, there is a timing attack vulnerability in course/auth.py — check_sign_in_key(). This issue has been patched via commit 2f68e16.

  • CVE-2023-25529HigSep 20, 2023
    risk 0.52cvss 8.0epss 0.01

    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…

  • CVE-2026-13183HigJul 22, 2026
    risk 0.49cvss 7.5epss 0.00

    In Progress® Telerik® UI for AJAX prior to v2026.2.708, RadAsyncUpload upload metadata processing may leak cryptographic validity through measurable timing differences, enabling remote attackers to recover protected metadata values.

  • CVE-2026-6656HigJul 20, 2026
    risk 0.49cvss 7.5epss 0.00

    Crypt::Password versions through 0.28 for Perl are susceptible to timing attacks. The check_password method uses the built-in eq operator. This allows discrepancies in timing to be used to guess the underlying hash.

  • CVE-2026-40972HigApr 28, 2026
    risk 0.49cvss 7.5epss 0.00

    An attacker on the same network as the remote application may be able to utilize a timing attack to discover information about the remote secret. In extreme circumstances this could result in the attacker determining the secret and uploading changed classes, thereby achieving…

  • CVE-2026-5086HigApr 13, 2026
    risk 0.49cvss 7.5epss 0.00

    Crypt::SecretBuffer versions before 0.019 for Perl is suseceptible to timing attacks. For example, if Crypt::SecretBuffer was used to store and compare plaintext passwords, then discrepencies in timing could be used to guess the secret password.

  • CVE-2025-70949HigMar 5, 2026
    risk 0.49cvss 7.5epss 0.00

    An observable timing discrepancy in @perfood/couch-auth v0.26.0 allows attackers to access sensitive information via a timing side-channel.

  • CVE-2024-13939HigMar 28, 2025
    risk 0.49cvss 7.5epss 0.00

    String::Compare::ConstantTime for Perl through 0.321 is vulnerable to timing attacks that allow an attacker to guess the length of a secret string. As stated in the documentation: "If the lengths of the strings are different, because equals returns false right away the size of…

  • CVE-2024-42512HigFeb 10, 2025
    risk 0.49cvss 8.6epss 0.01

    Vulnerability in the OPC UA .NET Standard Stack before 1.5.374.158 allows an unauthorized attacker to bypass application authentication when the deprecated Basic128Rsa15 security policy is enabled.

  • CVE-2023-50782HigFeb 5, 2024
    risk 0.49cvss 7.5epss 0.01

    A flaw was found in the python-cryptography package. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.

  • CVE-2023-50781HigFeb 5, 2024
    risk 0.49cvss 7.5epss 0.01

    A flaw was found in m2crypto. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.

  • CVE-2021-42016HigMar 8, 2022
    risk 0.49cvss 7.5epss 0.01

    A vulnerability has been identified in RUGGEDCOM i800, RUGGEDCOM i801, RUGGEDCOM i802, RUGGEDCOM i803, RUGGEDCOM M2100, RUGGEDCOM M2100F, RUGGEDCOM M2200, RUGGEDCOM M2200F, RUGGEDCOM M969, RUGGEDCOM M969F, RUGGEDCOM RMC30, RUGGEDCOM RMC8388 V4.X, RUGGEDCOM RMC8388 V5.X,…