Weakness (CWE)
CWE-347: Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
Source: MITRE CWE-347
270 results · Clear filters · Feed
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Medium 6.5
Apache Spark, Apache Spark: RPC encryption defaults to unauthenticated AES-CTR mode, enabling man-in-the-middle ciphertext modification attacks
This issue affects Apache Spark versions before 3.4.4, 3.5.2 and 4.0.0. Apache Spark versions before 4.0.0, 3.5.2 and 3.4.4 use an insecure default network encryption cipher for RPC communication between nodes. When spark.network.crypto.enabled is set to true…
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Medium 5.3
Playwright Spoofing Vulnerability
Improper verification of cryptographic signature in Github: Playwright allows an unauthorized attacker to perform spoofing over an adjacent network.
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Medium 6.8
An Improper Verification of Cryptographic Signature vulnerability [CWE-347] in FortiClient MacOS installer version 7.4.…
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Medium 6.0
Cisco IOS XR Software Image Verification Bypass Vulnerability
A vulnerability in the installation process of Cisco IOS XR Software could allow an authenticated, local attacker to bypass Cisco IOS XR Software image signature verification and load unsigned software on an affected device. To exploit this vulnerability, the…
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Medium 5.3
Windows Certificate Spoofing Vulnerability
Improper verification of cryptographic signature in Windows Certificates allows an unauthorized attacker to perform spoofing over a network.
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Medium 6.8
A potential vulnerability was reported in the Lenovo 510 FHD and Performance FHD web cameras that could allow an attack…
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Medium 5.5
A downgrade issue was addressed with additional code-signing restrictions. This issue is fixed in macOS Sequoia 15.6. A…
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Medium 5.9
HP Linux Imaging and Printing Software - Use of DSA Key
A potential security vulnerability has been identified in the HP Linux Imaging and Printing Software documentation. This potential vulnerability is due to the use of a weak code signing key, Digital Signature Algorithm (DSA).
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Medium 6.2
A vulnerability has been identified in TIA Administrator (All versions < V3.0.6). The affected application improperly v…
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Medium 6.4
Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator pr…
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Medium 5.1
Windows App Control for Business Security Feature Bypass Vulnerability
Improper verification of cryptographic signature in App Control for Business (WDAC) allows an unauthorized attacker to bypass a security feature locally.
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Medium 4.6
In IGEL OS before 11, Secure Boot can be bypassed because the igel-flash-driver module improperly verifies a cryptograp…
KEV Oct 14, 2025 -
Medium 6.2
A vulnerability has been identified in Building X - Security Manager Edge Controller (ACC-AP) (All versions). Affected …
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Medium 6.8
A vulnerability in Cisco IOS Software for Cisco Catalyst 2960X, 2960XR, 2960CX, and 3560CX Series Switches could allow …
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Medium 6.8
CarlinKit CPC200-CCPA Improper Verification of Cryptographic Signature Code Execution Vulnerability
CarlinKit CPC200-CCPA Improper Verification of Cryptographic Signature Code Execution Vulnerability. This vulnerability allows physically present attackers to execute arbitrary code on affected installations of CarlinKit CPC200-CCPA devices. Authentication is…
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Medium 4.3
NSSCryptoSignBackend.cc in Poppler before 25.04.0 does not verify the adbe.pkcs7.sha1 signatures on documents, resultin…
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Medium 6.0
Cisco Secure Network Analytics Privilege Escalation Vulnerability
A vulnerability in the web-based management interface of Cisco Secure Network Analytics could allow an authenticated, remote attacker with valid administrative credentials to execute arbitrary commands as root on the underlying operating system. This vulnerab…
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Medium 4.0
The OpenSAML C++ library before 3.3.1 allows forging of signed SAML messages via parameter manipulation (when using SAM…
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Medium 4.3
Ed25519 Signature Malleability in ed25519-java Due to Missing Scalar Range Check
The implementation of EdDSA in EdDSA-Java (aka ed25519-java) through 0.3.0 exhibits signature malleability and does not satisfy the SUF-CMA (Strong Existential Unforgeability under Chosen Message Attacks) property. This allows attackers to create new valid si…
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Medium 6.7
Cisco IOS XR Software Secure Boot Bypass Vulnerability
A vulnerability in the boot process of Cisco IOS XR Software could allow an authenticated, local attacker with high privileges to bypass the Secure Boot functionality and load unverified software on an affected device. To exploit this vulnerability, the attac…
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Medium 5.6
AEADs/ascon-aead: Plaintext exposed in decrypt_in_place_detached even on tag verification failure
aes-gcm is a pure Rust implementation of the AES-GCM. In decrypt_in_place_detached, the decrypted ciphertext (which is the correct ciphertext) is exposed even if the tag is incorrect. This is because in decrypt_inplace in asconcore.rs, tag verification causes…
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Medium 4.3
matrix-sdk-crypto missing facility to signal rotation of a verified cryptographic identity
matrix-rust-sdk is an implementation of a Matrix client-server library in Rust. Versions of the matrix-sdk-crypto Rust crate before 0.8.0 lack a dedicated mechanism to notify that a user's cryptographic identity has changed from a verified to an unverified on…
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Medium 5.5
Vulnerability with bundle verification in sigstore-java
sigstore-java is a sigstore java client for interacting with sigstore infrastructure. sigstore-java has insufficient verification for a situation where a validly-signed but "mismatched" bundle is presented as proof of inclusion into a transparency log. This b…
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Medium 5.4
The application failed to account for exceptions thrown by the `loadManifestFromFile` method during add-on signature ve…
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Medium 4.9
Cisco SD-WAN Software Signature Verification Bypass Vulnerability
A vulnerability in the Image Signature Verification feature of Cisco SD-WAN Software could allow an authenticated, remote attacker with Administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due …
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Medium 6.8
An improper verification of cryptographic signature vulnerability [CWE-347] in FortiClient MacOS version 7.4.0, version…
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Medium 5.3
Mutt: neomutt: in-reply-to email header field it not protected by cryptograpic signing
In mutt and neomutt the In-Reply-To email header field is not protected by cryptographic signing which allows an attacker to reuse an unencrypted but signed email message to impersonate the original sender.
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Medium 6.5
Mutt: neomutt: to and cc email header fields are not protected by cryptographic signing
In neomutt and mutt, the To and Cc email headers are not validated by cryptographic signing which allows an attacker that intercepts a message to change their value and include himself as a one of the recipients to compromise message confidentiality.
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Medium 6.3
Laravel Reverb has Missing API Signature Verification
Laravel Reverb provides a real-time WebSocket communication backend for Laravel applications. Prior to 1.4.0, there is an issue where verification signatures for requests sent to Reverb's Pusher-compatible API were not being verified. This API is used in scen…
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Medium 5.9
Unauthorized Modifications of Firmware and Configuration
ABB is aware of privately reported vulnerabilities in the product versions referenced in this CVE. An attacker could exploit these vulnerabilities by sending a specially crafted firmware or configuration to the system node, causing the node to stop, become in…
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Medium 4.8
Valid ECDSA signatures erroneously rejected in Elliptic
The Elliptic package 6.5.7 for Node.js, in its for ECDSA implementation, does not correctly verify valid signatures if the hash contains at least four leading 0 bytes and when the order of the elliptic curve's base point is smaller than the hash, because of a…
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Medium 4.6
Alpine Halo9 Improper Verification of Cryptographic Signature Vulnerability
Alpine Halo9 Improper Verification of Cryptographic Signature Vulnerability. This vulnerability allows physically present attackers to bypass signature validation mechanism on affected installations of Alpine Halo9 devices. Authentication is not required to e…
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Medium 5.3
Apache Druid: Padding oracle in druid-pac4j extension that allows an attacker to manipulate a pac4j session cookie via Padding Oracle Attack
Padding Oracle vulnerability in Apache Druid extension, druid-pac4j. This could allow an attacker to manipulate a pac4j session cookie. This issue affects Apache Druid versions 0.18.0 through 30.0.0. Since the druid-pac4j extension is optional and disabled by…
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Medium 5.8CVE-2024-45607 EPSS 14%
whatsapp-api-js fails to validate message's signature
whatsapp-api-js is a TypeScript server agnostic Whatsapp's Official API framework. It's possible to check the payload validation using the WhatsAppAPI.verifyRequestSignature and expect false when the signature is valid. Incorrect Access Control, anyone using …
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Medium 5.3
Adyen APIs Library for Python timing attack vulnerability
Adyen has utility methods for validating notification HMAC signatures. The `is_valid_hmac` and `is_valid_hmac_notification` methods are vulnerable to a timing attack, you should compare the hash of the HMACs instead.
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Medium 6.3
CVE-2024-38807: Signature Forgery Vulnerability in Spring Boot's Loader
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…
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Medium 5.7
Signature validation error in DLL allows disabling anti-tampering protection
An Improper Validation of signature in Zscaler Client Connector on Windows allows an authenticated user to disable anti-tampering. This issue affects Client Connector on Windows <4.2.0.190.
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Medium 6.4
Incorrect signature validation of package
The Zscaler Updater process does not validate the digital signature of the installer before execution, allowing arbitrary code to be locally executed. This affects Zscaler Client Connector on MacOS <4.2.
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Medium 5.3CVE-2024-42461 Public exploit
Elliptic allows BER-encoded signatures
In the Elliptic package 6.5.6 for Node.js, ECDSA signature malleability occurs because BER-encoded signatures are allowed.
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Medium 5.3
Elliptic's EDDSA missing signature length check
In the Elliptic package 6.5.6 for Node.js, EDDSA signature malleability occurs because there is a missing signature length check, and thus zero-valued bytes can be removed or appended.