CWE-347
Improper Verification of Cryptographic Signature
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 (357)
page 1 of 18| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2026-48558 | Cri | 0.77 | 10.0 | 0.01 | KEV | Jun 12, 2026 | SimpleHelp versions 5.5.15 and prior and 6.0 pre-release versions contain an authentication bypass vulnerability in the OIDC authentication flow. When OIDC authentication is configured, identity tokens submitted during login are accepted without verifying their cryptographic… | |
| CVE-2025-59718 | Cri | 0.77 | 9.8 | 0.66 | KEV | Dec 9, 2025 | A improper verification of cryptographic signature vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.10, FortiProxy 7.2.0… | |
| CVE-2026-36721 | Cri | 0.64 | 9.8 | 0.00 | Jun 9, 2026 | A lack of cryptographic signature verification in the validateAccessToken function of bookcars v8.3 allows attackers to bypass authentication via a forged JWT token. | ||
| CVE-2026-44748 | Cri | 0.64 | 9.9 | 0.00 | Jun 9, 2026 | SAP NetWeaver Application Server ABAP and ABAP Platform allows an authenticated attacker with normal privileges to obtain a valid signed message and send modified signed XML documents to the verifier. This may result in acceptance of tampered identity information leading to… | ||
| CVE-2023-53951 | Cri | 0.64 | 9.8 | 0.00 | Dec 19, 2025 | Ever Gauzy v0.281.9 contains a JWT authentication vulnerability that allows attackers to exploit weak HMAC secret key implementation. Attackers can leverage the exposed JWT token to authenticate and gain unauthorized access with administrative permissions. | ||
| CVE-2025-59719 | Cri | 0.64 | 9.8 | 0.24 | Dec 9, 2025 | An improper verification of cryptographic signature vulnerability in Fortinet FortiWeb 8.0.0, FortiWeb 7.6.0 through 7.6.4, FortiWeb 7.4.0 through 7.4.9 may allow an unauthenticated attacker to bypass the FortiCloud SSO login authentication via a crafted SAML response message. | ||
| CVE-2024-47943 | Cri | 0.64 | 9.8 | 0.01 | Oct 15, 2024 | The firmware upgrade function in the admin web interface of the Rittal IoT Interface & CMC III Processing Unit devices checks if the patch files are signed before executing the containing run.sh script. The signing process is kind of an HMAC with a long string as key which… | ||
| CVE-2017-3198 | Cri | 0.64 | 9.8 | 0.02 | Jul 9, 2018 | GIGABYTE BRIX UEFI firmware does not cryptographically validate images prior to updating the system firmware. Additionally, the firmware updates are served over HTTP. An attacker can make arbitrary modifications to firmware images without being detected. | ||
| CVE-2017-18146 | Cri | 0.64 | 9.8 | 0.01 | Apr 11, 2018 | In Android before security patch level 2018-04-05 on Qualcomm Snapdragon Automobile, Snapdragon Mobile, and Snapdragon Wear MDM9206, MDM9607, MDM9650, MSM8909W, SD 210/SD 212/SD 205, SD 400, SD 410/12, SD 425, SD 430, SD 450, SD 615/16/SD 415, SD 617, SD 625, SD 650/52, SD 800,… | ||
| CVE-2018-1287 | — | Cri | 0.64 | 9.8 | 0.03 | Feb 14, 2018 | In Apache JMeter 2.X and 3.X, when using Distributed Test only (RMI based), jmeter server binds RMI Registry to wildcard host. This could allow an attacker to get Access to JMeterEngine and send unauthorized code. | |
| CVE-2017-2423 | Cri | 0.64 | 9.8 | 0.02 | Apr 2, 2017 | An issue was discovered in certain Apple products. iOS before 10.3 is affected. macOS before 10.12.4 is affected. The issue involves the "Security" component. It allows remote attackers to bypass intended access restrictions by leveraging a successful result from a… | ||
| CVE-2026-1568 | Cri | 0.62 | 9.6 | 0.00 | Feb 3, 2026 | Rapid7 InsightVM versions before 8.34.0 contain a signature verification issue on the Assertion Consumer Service (ACS) cloud endpoint that could allow an attacker to gain unauthorized access to InsightVM accounts setup via "Security Console" installations, resulting in full… | ||
| CVE-2025-54982 | Cri | 0.62 | 9.6 | 0.00 | Aug 5, 2025 | An improper verification of cryptographic signature in Zscaler's SAML authentication mechanism on the server-side allowed an authentication abuse. | ||
| CVE-2025-32977 | Cri | 0.62 | 9.6 | 0.00 | Jun 24, 2025 | 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… | ||
| CVE-2024-13990 | Cri | 0.60 | — | 0.01 | Sep 19, 2025 | MicroWorld eScan AV's update mechanism failed to ensure authenticity and integrity of updates: update packages were delivered and accepted without robust cryptographic verification. As a result, an on-path attacker could perform a man-in-the-middle (MitM) attack and substitute… | ||
| CVE-2024-11957 | Cri | 0.60 | — | 0.00 | Mar 4, 2025 | 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-2024-7262 was not… | ||
| CVE-2026-41005 | Cri | 0.59 | 9.0 | 0.00 | Jun 11, 2026 | Cloud Foundry UAA incorrectly treated XML encryption to the Service Provider (confidentiality) as a substitute for XML signatures from the Identity Provider (authenticity) in two SAML flows: the OAuth 2.0 SAML2 bearer grant (token endpoint) and browser SSO (ACS) when… | ||
| CVE-2026-40372 | Cri | 0.59 | 9.1 | 0.11 | Apr 21, 2026 | Improper verification of cryptographic signature in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network. | ||
| CVE-2026-29000 | — | Cri | 0.59 | 9.1 | 0.06 | Mar 4, 2026 | pac4j-jwt versions prior to 4.5.9, 5.7.9, and 6.3.3 contain an authentication bypass vulnerability in JwtAuthenticator when processing encrypted JWTs that allows remote attackers to forge authentication tokens. Attackers who possess the server's RSA public key can create a… | |
| CVE-2025-54419 | Cri | 0.58 | 10.0 | 0.00 | Jul 28, 2025 | 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… |
- risk 0.77cvss 10.0epss 0.01
SimpleHelp versions 5.5.15 and prior and 6.0 pre-release versions contain an authentication bypass vulnerability in the OIDC authentication flow. When OIDC authentication is configured, identity tokens submitted during login are accepted without verifying their cryptographic…
- risk 0.77cvss 9.8epss 0.66
A improper verification of cryptographic signature vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.10, FortiProxy 7.2.0…
- risk 0.64cvss 9.8epss 0.00
A lack of cryptographic signature verification in the validateAccessToken function of bookcars v8.3 allows attackers to bypass authentication via a forged JWT token.
- risk 0.64cvss 9.9epss 0.00
SAP NetWeaver Application Server ABAP and ABAP Platform allows an authenticated attacker with normal privileges to obtain a valid signed message and send modified signed XML documents to the verifier. This may result in acceptance of tampered identity information leading to…
- risk 0.64cvss 9.8epss 0.00
Ever Gauzy v0.281.9 contains a JWT authentication vulnerability that allows attackers to exploit weak HMAC secret key implementation. Attackers can leverage the exposed JWT token to authenticate and gain unauthorized access with administrative permissions.
- risk 0.64cvss 9.8epss 0.24
An improper verification of cryptographic signature vulnerability in Fortinet FortiWeb 8.0.0, FortiWeb 7.6.0 through 7.6.4, FortiWeb 7.4.0 through 7.4.9 may allow an unauthenticated attacker to bypass the FortiCloud SSO login authentication via a crafted SAML response message.
- risk 0.64cvss 9.8epss 0.01
The firmware upgrade function in the admin web interface of the Rittal IoT Interface & CMC III Processing Unit devices checks if the patch files are signed before executing the containing run.sh script. The signing process is kind of an HMAC with a long string as key which…
- risk 0.64cvss 9.8epss 0.02
GIGABYTE BRIX UEFI firmware does not cryptographically validate images prior to updating the system firmware. Additionally, the firmware updates are served over HTTP. An attacker can make arbitrary modifications to firmware images without being detected.
- risk 0.64cvss 9.8epss 0.01
In Android before security patch level 2018-04-05 on Qualcomm Snapdragon Automobile, Snapdragon Mobile, and Snapdragon Wear MDM9206, MDM9607, MDM9650, MSM8909W, SD 210/SD 212/SD 205, SD 400, SD 410/12, SD 425, SD 430, SD 450, SD 615/16/SD 415, SD 617, SD 625, SD 650/52, SD 800,…
- risk 0.64cvss 9.8epss 0.03
In Apache JMeter 2.X and 3.X, when using Distributed Test only (RMI based), jmeter server binds RMI Registry to wildcard host. This could allow an attacker to get Access to JMeterEngine and send unauthorized code.
- risk 0.64cvss 9.8epss 0.02
An issue was discovered in certain Apple products. iOS before 10.3 is affected. macOS before 10.12.4 is affected. The issue involves the "Security" component. It allows remote attackers to bypass intended access restrictions by leveraging a successful result from a…
- risk 0.62cvss 9.6epss 0.00
Rapid7 InsightVM versions before 8.34.0 contain a signature verification issue on the Assertion Consumer Service (ACS) cloud endpoint that could allow an attacker to gain unauthorized access to InsightVM accounts setup via "Security Console" installations, resulting in full…
- risk 0.62cvss 9.6epss 0.00
An improper verification of cryptographic signature in Zscaler's SAML authentication mechanism on the server-side allowed an authentication abuse.
- risk 0.62cvss 9.6epss 0.00
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…
- risk 0.60cvss —epss 0.01
MicroWorld eScan AV's update mechanism failed to ensure authenticity and integrity of updates: update packages were delivered and accepted without robust cryptographic verification. As a result, an on-path attacker could perform a man-in-the-middle (MitM) attack and substitute…
- risk 0.60cvss —epss 0.00
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-2024-7262 was not…
- risk 0.59cvss 9.0epss 0.00
Cloud Foundry UAA incorrectly treated XML encryption to the Service Provider (confidentiality) as a substitute for XML signatures from the Identity Provider (authenticity) in two SAML flows: the OAuth 2.0 SAML2 bearer grant (token endpoint) and browser SSO (ACS) when…
- risk 0.59cvss 9.1epss 0.11
Improper verification of cryptographic signature in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.
- risk 0.59cvss 9.1epss 0.06
pac4j-jwt versions prior to 4.5.9, 5.7.9, and 6.3.3 contain an authentication bypass vulnerability in JwtAuthenticator when processing encrypted JWTs that allows remote attackers to forge authentication tokens. Attackers who possess the server's RSA public key can create a…
- risk 0.58cvss 10.0epss 0.00
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…