VYPR

CWE-385

Covert Timing Channel

BaseIncompleteLikelihood: Medium

Description

Covert timing channels convey information by modulating some aspect of system behavior over time, so that the program receiving the information can observe system behavior and infer protected information.

Hierarchy (View 1000)

Parents

Children

none

Related attack patterns (CAPEC)

CAPEC-462

CVEs mapped to this weakness (45)

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  • CVE-2025-53826CriJul 15, 2025
    risk 0.64cvss 9.8epss 0.01

    File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename, and edit files. In version 2.39.0, File Browser’s authentication system issues long-lived JWT tokens that remain valid even after the user logs…

  • 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-2019-3732HigSep 30, 2019
    risk 0.49cvss 7.5epss 0.01

    RSA BSAFE Crypto-C Micro Edition, versions prior to 4.0.5.3 (in 4.0.x) and versions prior to 4.1.3.3 (in 4.1.x), and RSA Micro Edition Suite, versions prior to 4.0.11 (in 4.0.x) versions prior to 4.1.6.1 (in 4.1.x) and versions prior to 4.3.3 (4.2.x and 4.3.x) are vulnerable to…

  • CVE-2025-0306HigJan 9, 2025
    risk 0.48cvss 7.4epss 0.01

    A vulnerability was found in Ruby. The Ruby interpreter is vulnerable to the Marvin Attack. This attack allows the attacker to decrypt previously encrypted messages or forge signatures by exchanging a large number of messages with the vulnerable service.

  • CVE-2023-46809HigSep 7, 2024
    risk 0.48cvss 7.4epss 0.01

    Node.js versions which bundle an unpatched version of OpenSSL or run against a dynamically linked version of OpenSSL which are unpatched are vulnerable to the Marvin Attack - https://people.redhat.com/~hkario/marvin/, if PCKS #1 v1.5 padding is allowed when performing RSA…

  • CVE-2024-23342HigJan 23, 2024
    risk 0.48cvss 7.4epss 0.01

    The `ecdsa` PyPI package is a pure Python implementation of ECC (Elliptic Curve Cryptography) with support for ECDSA (Elliptic Curve Digital Signature Algorithm), EdDSA (Edwards-curve Digital Signature Algorithm) and ECDH (Elliptic Curve Diffie-Hellman). Versions 0.18.0 and…

  • CVE-2023-3640HigJul 24, 2023
    risk 0.46cvss 7.0epss 0.01

    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'…

  • CVE-2020-35164MedJul 11, 2022
    risk 0.44cvss 6.7epss 0.01

    Dell BSAFE Crypto-C Micro Edition, versions before 4.1.5, and Dell BSAFE Micro Edition Suite, versions before 4.6, contain an Observable Timing Discrepancy Vulnerability.

  • CVE-2020-29506MedJul 11, 2022
    risk 0.44cvss 6.8epss 0.01

    Dell BSAFE Crypto-C Micro Edition, versions before 4.1.5, and Dell BSAFE Micro Edition Suite, versions before 4.5.2, contain an Observable Timing Discrepancy Vulnerability.

  • CVE-2026-5598HigApr 15, 2026
    risk 0.42cvss 7.5epss 0.01

    Covert timing channel vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA core on all (core modules). This vulnerability is associated with program files FrodoEngine.Java. This issue affects BC-JAVA: from 1.71 before 1.80.2, from 1.81 before 1.81.1, from 1.82 before…

  • CVE-2025-59425HigOct 7, 2025
    risk 0.42cvss 7.5epss 0.01

    vLLM is an inference and serving engine for large language models (LLMs). Before version 0.11.0rc2, the API key support in vLLM performs validation using a method that was vulnerable to a timing attack. API key validation uses a string comparison that takes longer the more…

  • CVE-2020-25658HigNov 12, 2020
    risk 0.42cvss 7.5epss 0.02

    It was found that python-rsa is vulnerable to Bleichenbacher timing attacks. An attacker can use this flaw via the RSA decryption API to decrypt parts of the cipher text encrypted with RSA.

  • CVE-2017-3156HigAug 10, 2017
    risk 0.42cvss 7.5epss 0.06

    The OAuth2 Hawk and JOSE MAC Validation code in Apache CXF prior to 3.0.13 and 3.1.x prior to 3.1.10 is not using a constant time MAC signature comparison algorithm which may be exploited by sophisticated timing attacks.

  • CVE-2026-41390HigApr 28, 2026
    risk 0.40cvss 7.3epss 0.00

    OpenClaw before 2026.3.28 contains an exec allowlist bypass vulnerability where allow-always persistence fails to unwrap /usr/bin/script and similar wrappers before storing trust decisions. Attackers can obtain user approval for one wrapped command to persist trust for wrapper…

  • CVE-2025-29780MedMar 14, 2025
    risk 0.38cvss epss 0.00

    Post-Quantum Secure Feldman's Verifiable Secret Sharing provides a Python implementation of Feldman's Verifiable Secret Sharing (VSS) scheme. In versions 0.8.0b2 and prior, the `feldman_vss` library contains timing side-channel vulnerabilities in its matrix operations,…

  • CVE-2024-26306MedMay 14, 2024
    risk 0.38cvss 5.9epss 0.01

    iPerf3 before 3.17, when used with OpenSSL before 3.2.0 as a server with RSA authentication, allows a timing side channel in RSA decryption operations. This side channel could be sufficient for an attacker to recover credential plaintext. It requires the attacker to send a large…

  • CVE-2024-2236MedMar 6, 2024
    risk 0.38cvss 5.9epss 0.01

    A timing-based side-channel flaw was found in libgcrypt's RSA implementation. This issue may allow a remote attacker to initiate a Bleichenbacher-style attack, which can lead to the decryption of RSA ciphertexts.

  • CVE-2023-49092MedNov 28, 2023
    risk 0.38cvss 5.9epss 0.01

    RustCrypto/RSA is a portable RSA implementation in pure Rust. Due to a non-constant-time implementation, information about the private key is leaked through timing information which is observable over the network. An attacker may be able to use that information to recover the…

  • CVE-2022-24409MedFeb 23, 2022
    risk 0.38cvss 5.9epss 0.01

    Dell BSAFE SSL-J contains remediation for a covert timing channel vulnerability that may be exploited by malicious users to compromise the affected system. Only customers with active BSAFE maintenance contracts can receive details about this vulnerability. Public disclosure of…