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CWE-347

732 CVEs • Abstraction: Base

Improper Verification of Cryptographic Signature

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

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CVEs (732)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Lenovo
1Drivers Management
Jun 17, 2026
Aug 17, 2021
N/A· v4
7.8 HIGH· v3
6.9 MEDIUM· v2
A DLL preloading vulnerability was reported in Lenovo Driver Management prior to version 2.9.0719.1104 that could allow privilege escalation.
1Dell
3Alienware Command Center Application
Command | UpdateUpdate/alienware Update
Jun 17, 2026
Aug 9, 2021
N/A· v4
7.8 HIGH· v3
7.2 HIGH· v2
Dell Command | Update, Dell Update, and Alienware Update versions before 4.3 contains an Improper Verification of Cryptographic Signature Vulnerability. A local authenticated malicious user may exploit this vulnerability...Show more
Dell Command | Update, Dell Update, and Alienware Update versions before 4.3 contains an Improper Verification of Cryptographic Signature Vulnerability. A local authenticated malicious user may exploit this vulnerability by executing arbitrary code on the system.Show less
1Parity
1Libsecp256k1
Jun 17, 2026
Aug 8, 2021
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
An issue was discovered in the libsecp256k1 crate before 0.5.0 for Rust. It can verify an invalid signature because it allows the R or S parameter to be larger than the curve order, aka an overflow.
1Showdoc
1Showdoc
Jun 17, 2026
Aug 4, 2021
N/A· v4
4.9 MEDIUM· v3
4.0 MEDIUM· v2
showdoc is vulnerable to Missing Cryptographic Step
1Swisslog Healthcare
1Hmi 3 Control Panel Firmware
Jun 17, 2026
Aug 2, 2021
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
A firmware validation issue was discovered in HMI3 Control Panel in Swisslog Healthcare Nexus Panel operated by released versions of software before Nexus Software 7.2.5.7. There is no firmware validation (e.g., cryptogr...Show more
A firmware validation issue was discovered in HMI3 Control Panel in Swisslog Healthcare Nexus Panel operated by released versions of software before Nexus Software 7.2.5.7. There is no firmware validation (e.g., cryptographic signature validation) during a File Upload for a firmware update.Show less
1Schneider Electric
6Evlink City Evc1s22p4 Firmware
Evlink City Evc1s7p4 FirmwareEvlink Parking Ev.2 Firmware+3 more
Jun 17, 2026
Jul 21, 2021
N/A· v4
7.2 HIGH· v3
6.5 MEDIUM· v2
A CWE-347: Improper Verification of Cryptographic Signature vulnerability exists in EVlink City (EVC1S22P4 / EVC1S7P4 all versions prior to R8 V3.4.0.1), EVlink Parking (EVW2 / EVF2 / EV.2 all versions prior to R8 V3.4.0...Show more
A CWE-347: Improper Verification of Cryptographic Signature vulnerability exists in EVlink City (EVC1S22P4 / EVC1S7P4 all versions prior to R8 V3.4.0.1), EVlink Parking (EVW2 / EVF2 / EV.2 all versions prior to R8 V3.4.0.1), and EVlink Smart Wallbox (EVB1A all versions prior to R8 V3.4.0.1 ) that could allow an attacker to craft a malicious firmware package and bypass the signature verification mechanism.Show less
1Fortinet
1Fortimail
Jun 17, 2026
Jul 9, 2021
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
A missing cryptographic step in the Identity-Based Encryption service of FortiMail before 7.0.0 may allow an unauthenticated attacker who intercepts the encrypted messages to manipulate them in such a way that makes the...Show more
A missing cryptographic step in the Identity-Based Encryption service of FortiMail before 7.0.0 may allow an unauthenticated attacker who intercepts the encrypted messages to manipulate them in such a way that makes the tampering and the recovery of the plaintexts possible.Show less
1Fortinet
1Fortimail
Jun 17, 2026
Jul 9, 2021
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
A missing cryptographic step in the implementation of the hash digest algorithm in FortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7 may allow an unauthenticated attacker to tamper with signed URLs by appending furt...Show more
A missing cryptographic step in the implementation of the hash digest algorithm in FortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7 may allow an unauthenticated attacker to tamper with signed URLs by appending further data which allows bypass of signature verification.Show less
2Debian
Linux
2Debian Linux
Linux Kernel
Jun 17, 2026
Jul 7, 2021
N/A· v4
7.8 HIGH· v3
6.9 MEDIUM· v2
kernel/module.c in the Linux kernel before 5.12.14 mishandles Signature Verification, aka CID-0c18f29aae7c. Without CONFIG_MODULE_SIG, verification that a kernel module is signed, for loading via init_module, does not oc...Show more
kernel/module.c in the Linux kernel before 5.12.14 mishandles Signature Verification, aka CID-0c18f29aae7c. Without CONFIG_MODULE_SIG, verification that a kernel module is signed, for loading via init_module, does not occur for a module.sig_enforce=1 command-line argument.Show less
1Stellar
1Js Stellar Sdk
Jun 17, 2026
Jul 2, 2021
N/A· v4
6.5 MEDIUM· v3
4.0 MEDIUM· v2
js-stellar-sdk is a Javascript library for communicating with a Stellar Horizon server. The `Utils.readChallengeTx` function used in SEP-10 Stellar Web Authentication states in its function documentation that it reads an...Show more
js-stellar-sdk is a Javascript library for communicating with a Stellar Horizon server. The `Utils.readChallengeTx` function used in SEP-10 Stellar Web Authentication states in its function documentation that it reads and validates the challenge transaction including verifying that the `serverAccountID` has signed the transaction. In js-stellar-sdk before version 8.2.3, the function does not verify that the server has signed the transaction. Applications that also used `Utils.verifyChallengeTxThreshold` or `Utils.verifyChallengeTxSigners` to verify the signatures including the server signature on the challenge transaction are unaffected as those functions verify the server signed the transaction. Applications calling `Utils.readChallengeTx` should update to version 8.2.3, the first version with a patch for this vulnerability, to ensure that the challenge transaction is completely valid and signed by the server creating the challenge transaction.Show less
1Mozilla
1Thunderbird
Jun 17, 2026
Jun 24, 2021
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
An attacker may perform a DoS attack to prevent a user from sending encrypted email to a correspondent. If an attacker creates a crafted OpenPGP key with a subkey that has an invalid self signature, and the Thunderbird u...Show more
An attacker may perform a DoS attack to prevent a user from sending encrypted email to a correspondent. If an attacker creates a crafted OpenPGP key with a subkey that has an invalid self signature, and the Thunderbird user imports the crafted key, then Thunderbird may try to use the invalid subkey, but the RNP library rejects it from being used, causing encryption to fail. This vulnerability affects Thunderbird < 78.9.1.Show less
1Mozilla
1Thunderbird
Jun 17, 2026
Jun 24, 2021
N/A· v4
4.3 MEDIUM· v3
4.3 MEDIUM· v2
Thunderbird did not check if the user ID associated with an OpenPGP key has a valid self signature. An attacker may create a crafted version of an OpenPGP key, by either replacing the original user ID, or by adding anoth...Show more
Thunderbird did not check if the user ID associated with an OpenPGP key has a valid self signature. An attacker may create a crafted version of an OpenPGP key, by either replacing the original user ID, or by adding another user ID. If Thunderbird imports and accepts the crafted key, the Thunderbird user may falsely conclude that the false user ID belongs to the correspondent. This vulnerability affects Thunderbird < 78.9.1.Show less
1Togatech
1Tenvoy
Jun 17, 2026
Jun 16, 2021
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
tEnvoy contains the PGP, NaCl, and PBKDF2 in node.js and the browser (hashing, random, encryption, decryption, signatures, conversions), used by TogaTech.org. In versions prior to 7.0.3, the `verifyWithMessage` method of...Show more
tEnvoy contains the PGP, NaCl, and PBKDF2 in node.js and the browser (hashing, random, encryption, decryption, signatures, conversions), used by TogaTech.org. In versions prior to 7.0.3, the `verifyWithMessage` method of `tEnvoyNaClSigningKey` always returns `true` for any signature that has a SHA-512 hash matching the SHA-512 hash of the message even if the signature was invalid. This issue is patched in version 7.0.3. As a workaround: In `tenvoy.js` under the `verifyWithMessage` method definition within the `tEnvoyNaClSigningKey` class, ensure that the return statement call to `this.verify` ends in `.verified`.Show less
1Hitachi
1Id Bravura Security Fabric
Jun 17, 2026
Jun 9, 2021
N/A· v4
8.8 HIGH· v3
6.5 MEDIUM· v2
An issue was discovered in Hitachi ID Bravura Security Fabric 11.0.0 through 11.1.3, 12.0.0 through 12.0.2, and 12.1.0. When using federated identity management (authenticating via SAML through a third-party identity pro...Show more
An issue was discovered in Hitachi ID Bravura Security Fabric 11.0.0 through 11.1.3, 12.0.0 through 12.0.2, and 12.1.0. When using federated identity management (authenticating via SAML through a third-party identity provider), an attacker can inject additional data into a signed SAML response being transmitted to the service provider (ID Bravura Security Fabric). The application successfully validates the signed values but uses the unsigned malicious values. An attacker with lower-privilege access to the application can inject the username of a high-privilege user to impersonate that user.Show less
1Bubble Fireworks Project
1Bubble Fireworks
Jun 17, 2026
Jun 4, 2021
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
bubble fireworks is an open source java package relating to Spring Framework. In bubble fireworks before version 2021.BUILD-SNAPSHOT there is a vulnerability in which the package did not properly verify the signature of...Show more
bubble fireworks is an open source java package relating to Spring Framework. In bubble fireworks before version 2021.BUILD-SNAPSHOT there is a vulnerability in which the package did not properly verify the signature of JSON Web Tokens. This allows to forgery of valid JWTs.Show less
2Debian
Inverse
2Debian Linux
Sogo
Jun 17, 2026
Jun 4, 2021
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
SOGo 2.x before 2.4.1 and 3.x through 5.x before 5.1.1 does not validate the signatures of any SAML assertions it receives. Any actor with network access to the deployment could impersonate users when SAML is the authent...Show more
SOGo 2.x before 2.4.1 and 3.x through 5.x before 5.1.1 does not validate the signatures of any SAML assertions it receives. Any actor with network access to the deployment could impersonate users when SAML is the authentication method. (Only versions after 2.0.5a are affected.)Show less
3Debian
EntrouvertFedoraproject
3Debian Linux
FedoraLasso
Jun 17, 2026
Jun 4, 2021
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
Lasso all versions prior to 2.7.0 has improper verification of a cryptographic signature.
1Schneider Electric
2Homelynk Firmware
Spacelynk Firmware
Jun 17, 2026
May 26, 2021
N/A· v4
7.2 HIGH· v3
6.5 MEDIUM· v2
Improper Verification of Cryptographic Signature vulnerability exists inhomeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior which could allow remote code execution when unauthorized code is copied to the device.
1Schneider Electric
2Homelynk Firmware
Spacelynk Firmware
Jun 17, 2026
May 26, 2021
N/A· v4
7.2 HIGH· v3
6.5 MEDIUM· v2
Improper Verification of Cryptographic Signature vulnerability exists in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior which could cause remote code execution when an attacker loads unauthorized code.
1Ibm
2Power9 System Firmware
Scale Out Lc System Firmware
Jun 17, 2026
May 26, 2021
N/A· v4
9.1 CRITICAL· v3
6.5 MEDIUM· v2
IBM Power9 Self Boot Engine(SBE) could allow a privileged user to inject malicious code and compromise the integrity of the host firmware bypassing the host firmware signature verification process.