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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
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Jun 17, 2026
Aug 27, 2025
8.8 HIGH· v4
N/A· v3
N/A· v2
An insufficiently secured internal function allows session generation for arbitrary users. The decodeParam function checks the JWT but does not verify which signing algorithm was used. As a result, an attacker can use th...Show more
An insufficiently secured internal function allows session generation for arbitrary users. The decodeParam function checks the JWT but does not verify which signing algorithm was used. As a result, an attacker can use the "ex:action" parameter in the VerifyUserByThrustedService function to generate a session for any user.Show less
1Consensys
1Gnark
Jun 17, 2026
Aug 22, 2025
8.6 HIGH· v4
9.1 CRITICAL· v3
N/A· v2
gnark is a zero-knowledge proof system framework. In versions prior to 0.14.0, the Verify function in eddsa.go and ecdsa.go used the S value from a signature without asserting that 0 ≤ S < order, leading to a signature m...Show more
gnark is a zero-knowledge proof system framework. In versions prior to 0.14.0, the Verify function in eddsa.go and ecdsa.go used the S value from a signature without asserting that 0 ≤ S < order, leading to a signature malleability vulnerability. Because gnark’s native EdDSA and ECDSA circuits lack essential constraints, multiple distinct witnesses can satisfy the same public inputs. In protocols where nullifiers or anti-replay checks are derived from R and S, this enables signature malleability and may allow double spending. This issue has been addressed in version 0.14.0.Show less
1Microsoft
13Windows 10 1507
Windows 10 1607Windows 10 1809+10 more
Jun 17, 2026
Aug 21, 2025
N/A· v4
5.3 MEDIUM· v3
N/A· v2
Improper verification of cryptographic signature in Windows Certificates allows an unauthorized attacker to perform spoofing over a network.
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Jun 17, 2026
Aug 18, 2025
7.0 HIGH· v4
6.8 MEDIUM· v3
N/A· v2
A potential vulnerability was reported in the Lenovo 510 FHD and Performance FHD web cameras that could allow an attacker with physical access to write arbitrary firmware updates to the device over a USB connection.
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Jun 17, 2026
Aug 14, 2025
N/A· v4
8.7 HIGH· v3
N/A· v2
A vulnerability has been identified in Mendix SAML (Mendix 10.12 compatible) (All versions < V4.0.3), Mendix SAML (Mendix 10.21 compatible) (All versions < V4.1.2), Mendix SAML (Mendix 9.24 compatible) (All versions < V3...Show more
A vulnerability has been identified in Mendix SAML (Mendix 10.12 compatible) (All versions < V4.0.3), Mendix SAML (Mendix 10.21 compatible) (All versions < V4.1.2), Mendix SAML (Mendix 9.24 compatible) (All versions < V3.6.21). Affected versions of the module insufficiently enforce signature validation and binding checks. This could allow unauthenticated remote attackers to hijack an account in specific SSO configurations.Show less
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Jun 17, 2026
Aug 6, 2025
N/A· v4
3.7 LOW· v3
N/A· v2
A flaw was found in CIRCL's implementation of the FourQ elliptic curve. This vulnerability allows an attacker to compromise session security via low-order point injection and incorrect point validation during Diffie-Hell...Show more
A flaw was found in CIRCL's implementation of the FourQ elliptic curve. This vulnerability allows an attacker to compromise session security via low-order point injection and incorrect point validation during Diffie-Hellman key exchange.Show less
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Jun 17, 2026
Aug 5, 2025
N/A· v4
9.6 CRITICAL· v3
N/A· v2
An improper verification of cryptographic signature in Zscaler's SAML authentication mechanism on the server-side allowed an authentication abuse.
1Debian
1Devscripts
Jun 17, 2026
Aug 1, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
It was discovered that uscan, a tool to scan/watch upstream sources for new releases of software, included in devscripts (a collection of scripts to make the life of a Debian Package maintainer easier), skips OpenPGP ver...Show more
It was discovered that uscan, a tool to scan/watch upstream sources for new releases of software, included in devscripts (a collection of scripts to make the life of a Debian Package maintainer easier), skips OpenPGP verification if the upstream source is already downloaded from a previous run even if the verification failed back then.Show less
1Apple
1Macos
Jun 17, 2026
Jul 30, 2025
N/A· v4
5.5 MEDIUM· v3
N/A· v2
A downgrade issue was addressed with additional code-signing restrictions. This issue is fixed in macOS Sequoia 15.6. An app may be able to access protected user data.
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Jun 17, 2026
Jul 28, 2025
N/A· v4
10.0 CRITICAL· v3
N/A· v2
A SAML library not dependent on any frameworks that runs in Node. In version 5.0.1, Node-SAML loads the assertion from the (unsigned) original response document. This is different than the parts that are verified when ch...Show more
A SAML library not dependent on any frameworks that runs in Node. In version 5.0.1, Node-SAML loads the assertion from the (unsigned) original response document. This is different than the parts that are verified when checking signature. This allows an attacker to modify authentication details within a valid SAML assertion. For example, in one attack it is possible to remove any character from the SAML assertion username. To conduct the attack an attacker would need a validly signed document from the identity provider (IdP). This is fixed in version 5.1.0.Show less
1Hp
1Linux Imaging And Printing
Jun 17, 2026
Jul 28, 2025
5.9 MEDIUM· v4
9.1 CRITICAL· v3
N/A· v2
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 (...Show more
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).Show less
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Jun 17, 2026
Jul 24, 2025
9.3 CRITICAL· v4
N/A· v3
N/A· v2
Node-SAML is a SAML library not dependent on any frameworks that runs in Node. In versions 5.0.1 and below, Node-SAML loads the assertion from the (unsigned) original response document. This is different than the parts t...Show more
Node-SAML is a SAML library not dependent on any frameworks that runs in Node. In versions 5.0.1 and below, Node-SAML loads the assertion from the (unsigned) original response document. This is different than the parts that are verified when checking signature. This allows an attacker to modify authentication details within a valid SAML assertion. For example, in one attack it is possible to remove any character from the SAML assertion username. This issue is fixed in version 5.1.0.Show less
1Siemens
1Tia Administrator
Jun 17, 2026
Jul 8, 2025
6.9 MEDIUM· v4
8.4 HIGH· v3
N/A· v2
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 arb...Show more
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.Show less
1Samsung
1Wear Os
Jun 17, 2026
Jul 8, 2025
N/A· v4
5.5 MEDIUM· v3
N/A· v2
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.
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Jun 17, 2026
Jul 1, 2025
8.1 HIGH· v4
N/A· v3
N/A· v2
tiny-secp256k1 is a tiny secp256k1 native/JS wrapper. Prior to version 1.1.7, a malicious JSON-stringifyable message can be made passing on verify(), when global Buffer is the buffer package. This affects only environmen...Show more
tiny-secp256k1 is a tiny secp256k1 native/JS wrapper. Prior to version 1.1.7, a malicious JSON-stringifyable message can be made passing on verify(), when global Buffer is the buffer package. This affects only environments where require('buffer') is the NPM buffer package. Buffer.isBuffer check can be bypassed, resulting in strange objects being accepted as a message, and those messages could trick verify() into returning false-positive true values. This issue has been patched in version 1.1.7.Show less
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Jun 17, 2026
Jun 27, 2025
N/A· v4
6.4 MEDIUM· v3
N/A· v2
Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator privilege to load malicious microcode, potentially resulting in loss of integrity of x86 instruction ex...Show more
Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator privilege to load malicious microcode, potentially resulting in loss of integrity of x86 instruction execution, loss of confidentiality and integrity of data in x86 CPU privileged context and compromise of SMM execution environment.Show less
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Jun 17, 2026
Jun 24, 2025
N/A· v4
9.6 CRITICAL· v3
N/A· v2
Quest KACE Systems Management Appliance (SMA) 13.0.x before 13.0.385, 13.1.x before 13.1.81, 13.2.x before 13.2.183, 14.0.x before 14.0.341 (Patch 5), and 14.1.x before 14.1.101 (Patch 4) allows unauthenticated users to...Show more
Quest KACE Systems Management Appliance (SMA) 13.0.x before 13.0.385, 13.1.x before 13.1.81, 13.2.x before 13.2.183, 14.0.x before 14.0.341 (Patch 5), and 14.1.x before 14.1.101 (Patch 4) allows unauthenticated users to upload backup files to the system. While signature validation is implemented, weaknesses in the validation process can be exploited to upload malicious backup content that could compromise system integrity.Show less
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Jun 17, 2026
Jun 21, 2025
9.3 CRITICAL· v4
N/A· v3
N/A· v2
rfc3161-client is a Python library implementing the Time-Stamp Protocol (TSP) described in RFC 3161. Prior to version 1.0.3, there is a flaw in the timestamp response signature verification logic. In particular, chain ve...Show more
rfc3161-client is a Python library implementing the Time-Stamp Protocol (TSP) described in RFC 3161. Prior to version 1.0.3, there is a flaw in the timestamp response signature verification logic. In particular, chain verification is performed against the TSR's embedded certificates up to the trusted root(s), but fails to verify the TSR's own signature against the timestamping leaf certificates. Consequently, vulnerable versions perform insufficient signature validation to properly consider a TSR verified, as the attacker can introduce any TSR signature so long as the embedded leaf chains up to some root TSA. This issue has been patched in version 1.0.3. There is no workaround for this issue.Show less
1Microsoft
2Windows 11 24h2
Windows Server 2025
Jun 17, 2026
Jun 10, 2025
N/A· v4
5.1 MEDIUM· v3
N/A· v2
Improper verification of cryptographic signature in App Control for Business (WDAC) allows an unauthorized attacker to bypass a security feature locally.
2Igel
Microsoft
16Igel Os
Windows 10 1507Windows 10 1607+13 more
Jun 17, 2026
Jun 5, 2025
N/A· v4
4.6 MEDIUM· v3
N/A· v2
In IGEL OS before 11, Secure Boot can be bypassed because the igel-flash-driver module improperly verifies a cryptographic signature. Ultimately, a crafted root filesystem can be mounted from an unverified SquashFS image...Show more
In IGEL OS before 11, Secure Boot can be bypassed because the igel-flash-driver module improperly verifies a cryptographic signature. Ultimately, a crafted root filesystem can be mounted from an unverified SquashFS image.Show less