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
883 results · Feed
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Critical 9.3CVE-2025-25292 EPSS 65%
Ruby SAML vulnerable to SAML authentication bypass due to namespace handling (parser differential)
ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. An authentication bypass vulnerability was found in ruby-saml prior to versions 1.12.4 and 1.18.0 due to a parser differential. ReXML and Nokogiri parse XML differentl…
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Critical 9.3CVE-2025-25291 EPSS 21%
ruby-saml vulnerable to SAML authentication bypass due to DOCTYPE handling (parser differential)
ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. An authentication bypass vulnerability was found in ruby-saml prior to versions 1.12.4 and 1.18.0 due to a parser differential. ReXML and Nokogiri parse XML differentl…
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Critical —
omniauth-saml has dependency on ruby-saml version with Signature Wrapping Attack issue
### Summary There are 2 new Critical Signature Wrapping Vulnerabilities (CVE-2025-25292, CVE-2025-25291) and a potential DDOS Moderated Vulneratiblity (CVE-2025-25293) affecting ruby-saml, a dependency of omniauth-saml. The fix will be applied to ruby-saml an…
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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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High 8.8
Samsung SmartThings Improper Verification of Cryptographic Signature Authentication Bypass Vulnerability
Samsung SmartThings Improper Verification of Cryptographic Signature Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of Samsung SmartThings. Authentication is not req…
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High 8.6
SimpleSAMLphp SAML2 library has incorrect signature verification for HTTP-Redirect binding
The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. Prior to versions 4.17.0 and 5.0.0-alpha.20, there is a signature confusion attack in the HTTPRedirect binding. An attacker with any signed SAMLResponse via the HTTP-Redirect bi…
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High 7.5
WinDbg Remote Code Execution Vulnerability
Improper verification of cryptographic signature in .NET allows an authorized attacker to execute code over a network.
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High 7.1
Cisco Secure Client for Windows with VPN Posture (HostScan) Module DLL Hijacking Vulnerability
A vulnerability in the interprocess communication (IPC) channel of Cisco Secure Client for Windows could allow an authenticated, local attacker to perform a DLL hijacking attack on an affected device if the Secure Firewall Posture Engine, formerly HostScan, i…
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Critical 9.8
Vasion Print (formerly PrinterLogic) before Virtual Appliance Host 22.0.843 Application 20.0.1923 allows Insufficient S…
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Critical 9.3
Arbitrary Code Execution in WPS Office
Improper verification of the digital signature in ksojscore.dll in Kingsoft WPS Office in versions equal or less than 12.1.0.18276 on Windows allows an attacker to load an arbitrary Windows library. The patch released in version 12.2.0.16909 to mitigate CVE-2…
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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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Critical 10.0
JupyterHub's LTI13Authenticator: JWT signature not validated
`jupyterhub-ltiauthenticator` is a JupyterHub authenticator for learning tools interoperability (LTI). LTI13Authenticator that was introduced in `jupyterhub-ltiauthenticator` 1.3.0 wasn't validating JWT signatures. This is believed to allow the LTI13Authentic…
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High 7.0
SSL validation for outgoing requests in Home Assistant Core and used libs not correct
Home Assistant Core is an open source home automation that puts local control and privacy first. Affected versions are subject to a potential man-in-the-middle attacks due to missing SSL certificate verification in the project codebase and used third-party li…
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High 7.2
SMC BMC Firmware Image Authentication Design Issue
There is a vulnerability in the BMC firmware image authentication design at Supermicro MBD-X12DPG-OA6 . An attacker can modify the firmware to bypass BMC inspection and bypass the signature verification process
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High 7.2
Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator pr…
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Critical 9.3
Critical vulnerability in `ismp-grandpa` <v15.0.1
Hyperbridge is a hyper-scalable coprocessor for verifiable, cross-chain interoperability. A critical vulnerability was discovered in the ismp-grandpa crate, that allowed a malicious prover easily convince the verifier of the finality of arbitrary headers. Thi…
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High 7.6CVE-2025-23369 Public exploit
Improper Verification of Cryptographic Signature in GitHub Enterprise Server Allows Signature Spoofing by Improper Validation
An improper verification of cryptographic signature vulnerability was identified in GitHub Enterprise Server that allowed signature spoofing for unauthorized internal users. Instances not utilizing SAML single sign-on or where the attacker is not already an e…
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Low 1.8
IAM OIDC custom resource allows connection to unauthorized OIDC provider in aws-cdk
The AWS Cloud Development Kit (AWS CDK) is an open-source software development framework to define cloud infrastructure in code and provision it through AWS CloudFormation. Users who use IAM OIDC custom resource provider package will download CA Thumbprints a…
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High 7.8
Improper signature verification in Ivanti EPM before the 2024 January-2025 Security Update and 2022 SU6 January-2025 Se…
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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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High 8.7
Algorithm Confusion Vulnerability in cjwt
cjwt is a C JSON Web Token (JWT) Implementation. Algorithm confusion occurs when a system improperly verifies the type of signature used, allowing attackers to exploit the lack of distinction between signing methods. If the system doesn't differentiate betwee…
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High 7.1
A library injection vulnerability exists in Microsoft Excel 16.83 for macOS. A specially crafted library can leverage E…
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High 7.1
A library injection vulnerability exists in Microsoft Outlook 16.83.3 for macOS. A specially crafted library can levera…
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High 7.1
A library injection vulnerability exists in Microsoft Teams (work or school) 24046.2813.2770.1094 for macOS. A speciall…
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High 7.1
A library injection vulnerability exists in Microsoft Word 16.83 for macOS. A specially crafted library can leverage Wo…
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High 7.1
A library injection vulnerability exists in Microsoft OneNote 16.83 for macOS. A specially crafted library can leverage…
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High 7.1
A library injection vulnerability exists in the WebView.app helper app of Microsoft Teams (work or school) 24046.2813.2…
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High 7.1
A library injection vulnerability exists in the com.microsoft.teams2.modulehost.app helper app of Microsoft Teams (work…
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High 7.1
A library injection vulnerability exists in Microsoft PowerPoint 16.83 for macOS. A specially crafted library can lever…
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High 8.8
Dell RecoverPoint for Virtual Machines 6.0.x contains an OS Command injection vulnerability. A low privileged remote at…
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High 8.5
Insufficient Integrity Verification Vulnerability in TP-Link Archer C50
This vulnerability exists in the TP-Link Archer C50 due to improper signature verification mechanism in the firmware upgrade process at its web interface. An attacker with administrative privileges within the router’s Wi-Fi range could exploit this vulnerabil…
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High 7.8
Dell NetWorker Management Console, version(s) 19.11, contain(s) an Improper Verification of Cryptographic Signature vul…
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Critical 9.3
iota C.ai Conversational Platform - Improper Verification of Cryptographic Signature
A improper verification of cryptographic signature vulnerability in plugin management in iota C.ai Conversational Platform from 1.0.0 through 2.1.3 allows remote authenticated users to load a malicious DLL via upload plugin function.
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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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Low 3.4
Keycloak: impersonation via logout token exchange
A flaw was found in Keycloak. This issue occurs due to improperly enforcing token types when validating signatures locally. This could allow an authenticated attacker to exchange a logout token for an access token and possibly gain access to data outside of e…
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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.