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 (803)
page 28 of 41| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2026-58262 | Hig | 0.39 | — | 0.00 | Aug 7, 2026 | Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, header signature verification counts the unused padding bits of the PubKeysBitmap toward the two-thirds validator quorum. These padding bits do not correspond to any validator and are ignored… | ||
| CVE-2026-42462 | Hig | 0.39 | 7.0 | 0.00 | Jun 10, 2026 | Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Prior to versions 1.9.11, 1.10.10, 2.0.18, 2.1.14, and 2.2.3, an attacker can make use of JSON-LD features to restructure a JSON-LD document that would change how Fedify interprets it… | ||
| CVE-2025-20248 | Med | 0.39 | 6.0 | 0.00 | Sep 10, 2025 | 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 attacker must have… | ||
| CVE-2025-20178 | Med | 0.39 | 6.0 | 0.00 | Apr 16, 2025 | 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 vulnerability is due to… | ||
| CVE-2025-25305 | Hig | 0.39 | 7.0 | 0.00 | Feb 18, 2025 | 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 libraries. In the… | ||
| CVE-2022-35930 | Hig | 0.39 | 7.1 | 0.01 | Aug 4, 2022 | PolicyController is a utility used to enforce supply chain policy in Kubernetes clusters. In versions prior to 0.2.1 PolicyController will report a false positive, resulting in an admission when it should not be admitted when there is at least one attestation with a valid… | ||
| CVE-2022-35929 | Hig | 0.39 | 7.1 | 0.01 | Aug 4, 2022 | cosign is a container signing and verification utility. In versions prior to 1.10.1 cosign can report a false positive if any attestation exists. `cosign verify-attestation` used with the `--type` flag will report a false positive verification when there is at least one… | ||
| CVE-2021-34709 | Med | 0.39 | 6.0 | 0.00 | Sep 9, 2021 | Multiple vulnerabilities in image verification checks of Cisco Network Convergence System (NCS) 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for Cisco 8000 Series Routers could allow an authenticated, local attacker to… | ||
| CVE-2021-34708 | Med | 0.39 | 6.0 | 0.00 | Sep 9, 2021 | Multiple vulnerabilities in image verification checks of Cisco Network Convergence System (NCS) 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for Cisco 8000 Series Routers could allow an authenticated, local attacker to… | ||
| CVE-2020-14365 | Hig | 0.39 | 7.1 | 0.00 | Sep 23, 2020 | A flaw was found in the Ansible Engine, in ansible-engine 2.8.x before 2.8.15 and ansible-engine 2.9.x before 2.9.13, when installing packages using the dnf module. GPG signatures are ignored during installation even when disable_gpg_check is set to False, which is the default… | ||
| CVE-2020-10759 | Med | 0.39 | 6.0 | 0.00 | Sep 15, 2020 | A PGP signature bypass flaw was found in fwupd (all versions), which could lead to the installation of unsigned firmware. As per upstream, a signature bypass is theoretically possible, but not practical because the Linux Vendor Firmware Service (LVFS) is either not implemented… | ||
| CVE-2012-2092 | Med | 0.39 | 5.9 | 0.04 | Dec 6, 2019 | A Security Bypass vulnerability exists in Ubuntu Cobbler before 2,2,2 in the cobbler-ubuntu-import script due to an error when verifying the GPG signature. | ||
| CVE-2019-1729 | Med | 0.39 | 6.0 | 0.00 | May 15, 2019 | A vulnerability in the CLI implementation of a specific command used for image maintenance for Cisco NX-OS Software could allow an authenticated, local attacker to overwrite any file on the file system including system files. These file overwrites by the attacker are… | ||
| CVE-2026-66776 | Med | 0.38 | 5.9 | 0.00 | Aug 11, 2026 | SAP Approuter does not consistently enforce integrity verification on certain session-related request headers under specific conditions. An attacker with low privileges could send a specially crafted request that bypasses the integrity check and loads another user's session… | ||
| CVE-2026-52767 | hig | 0.38 | — | — | Jul 9, 2026 | ## Summary `HttpSignatureService::verifySignature()` checks the result of PHP's `openssl_verify()` with a **loose boolean negation** - `if (!openssl_verify(...)) { throw ... }`. PHP's `openssl_verify` has four possible return values: | return | meaning … | ||
| CVE-2026-9793 | Med | 0.38 | 5.9 | 0.00 | May 28, 2026 | A flaw was found in Keycloak. When a JSON Web Encryption (JWE) encrypted request object is submitted, Keycloak may incorrectly process unsigned claims if the decrypted content is raw JSON, bypassing the configured signature policy. This allows a remote attacker to submit… | ||
| CVE-2025-68972 | Med | 0.38 | 5.9 | 0.00 | Dec 27, 2025 | In GnuPG through 2.4.8, if a signed message has \f at the end of a plaintext line, an adversary can construct a modified message that places additional text after the signed material, such that signature verification of the modified message succeeds (although an "invalid armor"… | ||
| CVE-2025-54549 | Med | 0.38 | 5.9 | 0.00 | Oct 29, 2025 | Cryptographic validation of upgrade images could be circumventing by dropping a specifically crafted file into the upgrade ISO | ||
| CVE-2024-8036 | Med | 0.38 | 5.9 | 0.00 | Oct 25, 2024 | 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 inaccessible, or… | ||
| CVE-2024-24694 | Med | 0.38 | 5.9 | 0.00 | Apr 9, 2024 | Improper privilege management in the installer for Zoom Desktop Client for Windows before version 5.17.10 may allow an authenticated user to conduct an escalation of privilege via local access. |
- risk 0.39cvss —epss 0.00
Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, header signature verification counts the unused padding bits of the PubKeysBitmap toward the two-thirds validator quorum. These padding bits do not correspond to any validator and are ignored…
- risk 0.39cvss 7.0epss 0.00
Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Prior to versions 1.9.11, 1.10.10, 2.0.18, 2.1.14, and 2.2.3, an attacker can make use of JSON-LD features to restructure a JSON-LD document that would change how Fedify interprets it…
- risk 0.39cvss 6.0epss 0.00
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 attacker must have…
- risk 0.39cvss 6.0epss 0.00
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 vulnerability is due to…
- risk 0.39cvss 7.0epss 0.00
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 libraries. In the…
- risk 0.39cvss 7.1epss 0.01
PolicyController is a utility used to enforce supply chain policy in Kubernetes clusters. In versions prior to 0.2.1 PolicyController will report a false positive, resulting in an admission when it should not be admitted when there is at least one attestation with a valid…
- risk 0.39cvss 7.1epss 0.01
cosign is a container signing and verification utility. In versions prior to 1.10.1 cosign can report a false positive if any attestation exists. `cosign verify-attestation` used with the `--type` flag will report a false positive verification when there is at least one…
- risk 0.39cvss 6.0epss 0.00
Multiple vulnerabilities in image verification checks of Cisco Network Convergence System (NCS) 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for Cisco 8000 Series Routers could allow an authenticated, local attacker to…
- risk 0.39cvss 6.0epss 0.00
Multiple vulnerabilities in image verification checks of Cisco Network Convergence System (NCS) 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for Cisco 8000 Series Routers could allow an authenticated, local attacker to…
- risk 0.39cvss 7.1epss 0.00
A flaw was found in the Ansible Engine, in ansible-engine 2.8.x before 2.8.15 and ansible-engine 2.9.x before 2.9.13, when installing packages using the dnf module. GPG signatures are ignored during installation even when disable_gpg_check is set to False, which is the default…
- risk 0.39cvss 6.0epss 0.00
A PGP signature bypass flaw was found in fwupd (all versions), which could lead to the installation of unsigned firmware. As per upstream, a signature bypass is theoretically possible, but not practical because the Linux Vendor Firmware Service (LVFS) is either not implemented…
- risk 0.39cvss 5.9epss 0.04
A Security Bypass vulnerability exists in Ubuntu Cobbler before 2,2,2 in the cobbler-ubuntu-import script due to an error when verifying the GPG signature.
- risk 0.39cvss 6.0epss 0.00
A vulnerability in the CLI implementation of a specific command used for image maintenance for Cisco NX-OS Software could allow an authenticated, local attacker to overwrite any file on the file system including system files. These file overwrites by the attacker are…
- risk 0.38cvss 5.9epss 0.00
SAP Approuter does not consistently enforce integrity verification on certain session-related request headers under specific conditions. An attacker with low privileges could send a specially crafted request that bypasses the integrity check and loads another user's session…
- risk 0.38cvss —epss —
## Summary `HttpSignatureService::verifySignature()` checks the result of PHP's `openssl_verify()` with a **loose boolean negation** - `if (!openssl_verify(...)) { throw ... }`. PHP's `openssl_verify` has four possible return values: | return | meaning …
- risk 0.38cvss 5.9epss 0.00
A flaw was found in Keycloak. When a JSON Web Encryption (JWE) encrypted request object is submitted, Keycloak may incorrectly process unsigned claims if the decrypted content is raw JSON, bypassing the configured signature policy. This allows a remote attacker to submit…
- risk 0.38cvss 5.9epss 0.00
In GnuPG through 2.4.8, if a signed message has \f at the end of a plaintext line, an adversary can construct a modified message that places additional text after the signed material, such that signature verification of the modified message succeeds (although an "invalid armor"…
- risk 0.38cvss 5.9epss 0.00
Cryptographic validation of upgrade images could be circumventing by dropping a specifically crafted file into the upgrade ISO
- risk 0.38cvss 5.9epss 0.00
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 inaccessible, or…
- risk 0.38cvss 5.9epss 0.00
Improper privilege management in the installer for Zoom Desktop Client for Windows before version 5.17.10 may allow an authenticated user to conduct an escalation of privilege via local access.