VYPR

CWE-347

Improper Verification of Cryptographic Signature

BaseDraft

Description

The product does not verify, or incorrectly verifies, the cryptographic signature for data.

Hierarchy (View 1000)

Parents

Children

none

Related attack patterns (CAPEC)

CAPEC-463 · CAPEC-475

CVEs mapped to this weakness (803)

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  • CVE-2026-54783HigJul 8, 2026
    risk 0.41cvss 7.4epss 0.00

    CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. Prior to 1.8.1 and 1.9.1, CoreWCF WS-Security endorsing and supporting signature verification does not ensure the selected ds:Signature covers the expected Security header target,…

  • CVE-2026-54774HigJul 8, 2026
    risk 0.41cvss 7.4epss 0.00

    CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. Prior to 1.8.1 and 1.9.1, SamlSerializer skips final SignatureValue verification when a CoreWCF service validates SAML tokens using a non-X.509 signing token, allowing an attacker to…

  • CVE-2026-48526HigMay 28, 2026
    risk 0.41cvss 7.4epss 0.00

    PyJWT is a JSON Web Token implementation in Python. Prior to 2.13.0, when the verifier is decoding JSON Web Tokens, while supporting both asymmetric and HMAC algorithms, the library does not validate use of JSON Web Keys in HMAC algorithm, allowing attacker to use the issuer…

  • CVE-2026-45575HigMay 26, 2026
    risk 0.41cvss 7.4epss 0.00

    epa4all-client is the Java Client for epa4all / ePA 3.0 in the Telematik Infrastruktur. Prior to 1.2.2, an attacker who can MITM the TLS connection between the client and the IDP (within the TI network) can substitute a forged discovery document. The forged document redirects…

  • CVE-2026-32144HigApr 7, 2026
    risk 0.41cvss 7.4epss 0.00

    Improper Certificate Validation vulnerability in Erlang OTP public_key (pubkey_ocsp module) allows OCSP designated-responder authorization bypass via missing signature verification. The OCSP response validation in public_key:pkix_ocsp_validate/5 does not verify that a…

  • CVE-2026-4600HigMar 23, 2026
    risk 0.41cvss 7.4epss 0.00

    Versions of the package jsrsasign before 11.1.1 are vulnerable to Improper Verification of Cryptographic Signature via the DSA domain-parameter validation in KJUR.crypto.DSA.setPublic (and the related DSA/X509 verification flow in src/dsa-2.0.js). An attacker can forge DSA…

  • CVE-2024-38807MedAug 23, 2024
    risk 0.41cvss 6.3epss 0.00

    Applications that use spring-boot-loader or spring-boot-loader-classic and contain custom code that performs signature verification of nested jar files may be vulnerable to signature forgery where content that appears to have been signed by one signer has, in fact, been signed…

  • CVE-2022-39299HigOct 12, 2022
    risk 0.41cvss 7.4epss 0.03

    Passport-SAML is a SAML 2.0 authentication provider for Passport, the Node.js authentication library. A remote attacker may be able to bypass SAML authentication on a website using passport-saml. A successful attack requires that the attacker is in possession of an arbitrary IDP…

  • CVE-2020-15240HigOct 21, 2020
    risk 0.41cvss 7.4epss 0.01

    omniauth-auth0 (rubygems) versions >= 2.3.0 and < 2.4.1 improperly validate the JWT token signature when using the `jwt_validator.verify` method. Improper validation of the JWT token signature can allow an attacker to bypass authentication and authorization. You are affected by…

  • CVE-2020-2146HigMar 9, 2020
    risk 0.41cvss 7.4epss 0.01

    Jenkins Mac Plugin 1.1.0 and earlier does not validate SSH host keys when connecting agents created by the plugin, enabling man-in-the-middle attacks.

  • CVE-2026-17872MedJul 30, 2026
    risk 0.40cvss 6.1epss 0.00

    Cryptographic Flaw in WebAppInstalls in Google Chrome on Android prior to 151.0.7922.72 allowed a local attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)

  • CVE-2026-20699MedMar 25, 2026
    risk 0.40cvss 6.2epss 0.00

    A downgrade issue affecting Intel-based Mac computers was addressed with additional code-signing restrictions. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.3, macOS Tahoe 26.4. An app may be able to access user-sensitive data.

  • CVE-2025-23364MedJul 8, 2025
    risk 0.40cvss 6.2epss 0.00

    A vulnerability has been identified in TIA Administrator (All versions < V3.0.6). The affected application improperly validates code signing certificates. This could allow an attacker to bypass the check and exceute arbitrary code during installations.

  • CVE-2025-21004MedJul 8, 2025
    risk 0.40cvss 6.2epss 0.00

    Improper verification of intent by broadcast receiver in System UI for Galaxy Watch prior to SMR Jul-2025 Release 1 allows local attackers to power off the device.

  • CVE-2022-31807MedMay 23, 2025
    risk 0.40cvss 6.2epss 0.00

    A vulnerability has been identified in Building X - Security Manager Edge Controller (ACC-AP) (All versions). Affected devices do not properly check the integrity of firmware updates. This could allow a local attacker to upload a maliciously modified firmware onto the device. In…

  • CVE-2024-2307MedMar 19, 2024
    risk 0.40cvss 6.1epss 0.00

    A flaw was found in osbuild-composer. A condition can be triggered that disables GPG verification for package repositories, which can expose the build phase to a Man-in-the-Middle attack, allowing untrusted code to be installed into an image being built.

  • CVE-2022-20944MedOct 10, 2022
    risk 0.40cvss 6.1epss 0.00

    A vulnerability in the software image verification functionality of Cisco IOS XE Software for Cisco Catalyst 9200 Series Switches could allow an unauthenticated, physical attacker to execute unsigned code at system boot time. This vulnerability is due to an improper check in the…

  • CVE-2022-39200HigSep 12, 2022
    risk 0.40cvss 7.3epss 0.00

    Dendrite is a Matrix homeserver written in Go. In affected versions events retrieved from a remote homeserver using the `/get_missing_events` path did not have their signatures verified correctly. This could potentially allow a remote homeserver to provide invalid/modified…

  • CVE-2021-43393MedMar 4, 2022
    risk 0.40cvss 6.2epss 0.00

    STMicroelectronics STSAFE-J 1.1.4, J-SAFE3 1.2.5, and J-SIGN sometimes allow attackers to abuse signature verification. This is associated with the ECDSA signature algorithm on the Java Card J-SAFE3 and STSAFE-J platforms exposing a 3.0.4 Java Card API. It is exploitable for…

  • CVE-2021-43392MedMar 4, 2022
    risk 0.40cvss 6.2epss 0.00

    STMicroelectronics STSAFE-J 1.1.4, J-SAFE3 1.2.5, and J-SIGN sometimes allow attackers to obtain information on cryptographic secrets. This is associated with the ECDSA signature algorithm on the Java Card J-SAFE3 and STSAFE-J platforms exposing a 3.0.4 Java Card API. It is…