CWE-347— Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.— MITRE CWE catalog
917 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-347page 18 of 19
- CVE-2020-8324MEDIUMCVSS 5.0EG 5.02020-04-14
A vulnerability was reported in LenovoAppScenarioPluginSystem for Lenovo System Interface Foundation prior to version 1.2.184.31 that could allow unsigned DLL files to be executed.
- CVE-2016-8021MEDIUMCVSS 5.0EG 5.02017-03-14
Improper verification of cryptographic signature vulnerability in Intel Security VirusScan Enterprise Linux (VSEL) 2.0.3 (and earlier) allows remote authenticated users to spoof update server and execute arbitrary code via a crafted input …
- CVE-2014-1498MEDIUMCVSS v2 5.0EG 5.02014-03-19
The crypto.generateCRMFRequest method in Mozilla Firefox before 28.0 and SeaMonkey before 2.25 does not properly validate a certain key type, which allows remote attackers to cause a denial of service (application crash) via vectors that t…
- CVE-2011-3965MEDIUMCVSS v2 5.0EG 5.02012-02-09
Google Chrome before 17.0.963.46 does not properly check signatures, which allows remote attackers to cause a denial of service (application crash) via unspecified vectors.
- CVE-2021-1461MEDIUMCVSS 4.9EG 4.92024-11-18
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 …
- CVE-2021-3680MEDIUMCVSS 4.9EG 4.92021-08-04
showdoc is vulnerable to Missing Cryptographic Step
- CVE-2020-3308MEDIUMCVSS 4.9EG 4.92020-05-06
A vulnerability in the Image Signature Verification feature of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker with administrator-level credentials to install a malicious software patch on an aff…
- CVE-2026-63237MEDIUMCVSS 4.8EG 4.82026-07-29
A TOTP two-factor authentication bypass vulnerability in Koollab LMS allowed an attacker to supply a client-controlled seed to generate a matching one-time password and bypass the second authentication factor, potentially enabling unauthor…
- CVE-2026-55165MEDIUMCVSS 4.8EG 4.82026-06-25
Lemur manages TLS certificate creation. Prior to 1.9.2, the JWT verifier in lemur/auth/service.py:130-137 used fetch_token_header to read header_data["alg"] from an unverified token and passed that attacker-controlled value to decode_with_…
- CVE-2024-48948MEDIUMCVSS 4.8EG 4.82024-10-15
The Elliptic package 6.5.7 for Node.js, in its for ECDSA implementation, does not correctly verify valid signatures if the hash contains at least four leading 0 bytes and when the order of the elliptic curve's base point is smaller than th…
- CVE-2022-23655MEDIUMCVSS 4.8EG 4.82022-02-24
Octobercms is a self-hosted CMS platform based on the Laravel PHP Framework. Affected versions of OctoberCMS did not validate gateway server signatures. As a result non-authoritative gateway servers may be used to exfiltrate user private k…
- CVE-2017-18407MEDIUMCVSS 4.8EG 4.82019-08-02
cPanel before 67.9999.103 does not enforce SSL hostname verification for the support-agreement download (SEC-279).
- CVE-2026-105118MEDIUMCVSS 4.7EG 4.72026-10-03
OpenAM before 16.1.3 contains an open redirect vulnerability that allows unauthenticated attackers to redirect users by supplying an unverified id_token_hint to the /oauth2/connect/endSession endpoint. Attackers can name any realm client i…
- CVE-2026-45614MEDIUMCVSS 4.7EG 4.72026-06-03
OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. Prior to version 4.11.0, on many of the ECDH shared secret paths, the public …
- CVE-2026-32294MEDIUMCVSS 4.7EG 4.72026-03-17
JetKVM prior to 0.5.4 does not verify the authenticity of downloaded firmware files. An attacker-in-the-middle or a compromised update server could modify the firmware and the corresponding SHA256 hash to pass verification.
- CVE-2023-36811MEDIUMCVSS 4.7EG 4.72023-08-30
borgbackup is an opensource, deduplicating archiver with compression and authenticated encryption. A flaw in the cryptographic authentication scheme in borgbackup allowed an attacker to fake archives and potentially indirectly cause backup…
- CVE-2021-3521MEDIUMCVSS 4.7EG 4.72022-08-22
There is a flaw in RPM's signature functionality. OpenPGP subkeys are associated with a primary key via a "binding signature." RPM does not check the binding signature of subkeys prior to importing them. If an attacker is able to add or so…
- CVE-2021-34420MEDIUMCVSS 4.7EG 4.72021-11-11
The Zoom Client for Meetings for Windows installer before version 5.5.4 does not properly verify the signature of files with .msi, .ps1, and .bat extensions. This could lead to a malicious actor installing malicious software on a customer�…
- CVE-2021-34715MEDIUMCVSS 4.7EG 4.72021-08-18
A vulnerability in the image verification function of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker to execute code with internal user privileges on the underl…
- CVE-2019-15796MEDIUMCVSS 4.7EG 4.72020-03-26
Python-apt doesn't check if hashes are signed in `Version.fetch_binary()` and `Version.fetch_source()` of apt/package.py or in `_fetch_archives()` of apt/cache.py in version 1.9.3ubuntu2 and earlier. This allows downloads from unsigned rep…
- CVE-2024-23960MEDIUMCVSS 4.6EG 4.62024-09-28
Alpine Halo9 Improper Verification of Cryptographic Signature Vulnerability. This vulnerability allows physically present attackers to bypass signature validation mechanism on affected installations of Alpine Halo9 devices. Authentication …
- CVE-2023-33185MEDIUMCVSS 4.6EG 4.62023-05-26
Django-SES is a drop-in mail backend for Django. The django_ses library implements a mail backend for Django using AWS Simple Email Service. The library exports the `SESEventWebhookView class` intended to receive signed requests from AWS t…
- CVE-2022-3864MEDIUMCVSS 4.5EG 4.52024-01-04
A vulnerability exists in the Relion update package signature validation. A tampered update package could cause the IED to restart. After restart the device is back to normal operation. An attacker could exploit the vulnerability by first…
- CVE-2026-59112MEDIUMCVSS 4.4EG 4.42026-08-10
Improper verification of cryptographic signature and Improper Check for Unusual or Exceptional Conditions vulnerability in Estonian Information System Authority (RIA) libdigidocpp, DigiDoc4, DigiDoc on Android, and DigiDoc on iOS. This is…
- CVE-2019-1808MEDIUMCVSS 4.4EG 4.42019-05-15
A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software patch on an affected device. The vulnerab…
- CVE-2016-9604MEDIUMCVSS 4.4EG 4.42018-07-11
It was discovered in the Linux kernel before 4.11-rc8 that root can gain direct access to an internal keyring, such as '.dns_resolver' in RHEL-7 or '.builtin_trusted_keys' upstream, by joining it as its session keyring. This allows root to…
- CVE-2026-6873MEDIUMCVSS 4.3EG 4.32026-06-03
An issue was discovered in Django 6.0 before 6.0.6 and 5.2 before 5.2.15. `django.http.HttpRequest.get_signed_cookie` in Django uses a non-injective salt derivation (concatenating the cookie name and salt argument), which allows a remote a…
- CVE-2025-43903MEDIUMCVSS 4.3EG 4.32025-04-18
NSSCryptoSignBackend.cc in Poppler before 25.04.0 does not verify the adbe.pkcs7.sha1 signatures on documents, resulting in potential signature forgeries.
- CVE-2020-36843MEDIUMCVSS 4.3EG 4.32025-03-13
The implementation of EdDSA in EdDSA-Java (aka ed25519-java) through 0.3.0 exhibits signature malleability and does not satisfy the SUF-CMA (Strong Existential Unforgeability under Chosen Message Attacks) property. This allows attackers to…
- CVE-2023-41037MEDIUMCVSS 4.3EG 4.32023-08-29
OpenPGP.js is a JavaScript implementation of the OpenPGP protocol. In affected versions OpenPGP Cleartext Signed Messages are cryptographically signed messages where the signed text is readable without special tools. These messages typical…
- CVE-2023-1204MEDIUMCVSS 4.3EG 4.32023-05-03
An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.1 before 15.10.8, all versions starting from 15.11 before 15.11.7, all versions starting from 16.0 before 16.0.2. A user could use an unverified email as …
- CVE-2021-43074MEDIUMCVSS 4.3EG 4.32023-02-16
An improper verification of cryptographic signature vulnerability [CWE-347] in FortiWeb 6.4 all versions, 6.3.16 and below, 6.2 all versions, 6.1 all versions, 6.0 all versions; FortiOS 7.0.3 and below, 6.4.8 and below, 6.2 all versions, …
- CVE-2021-23992MEDIUMCVSS 4.3EG 4.32021-06-24
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 Thun…
- CVE-2019-10136MEDIUMCVSS 4.3EG 4.32019-07-02
It was found that Spacewalk, all versions through 2.9, did not safely compute client token checksums. An attacker with a valid, but expired, authenticated set of headers could move some digits around, artificially extending the session val…
- CVE-2026-89169MEDIUMCVSS 4.1EG 4.12026-09-11
live-boot ff8867c allows attackers to bypass the dm-verity-enforce-roothash-signature protection mechanism when the .verity file is missing.
- CVE-2025-31335MEDIUMCVSS 4.0EG 4.02025-03-28
The OpenSAML C++ library before 3.3.1 allows forging of signed SAML messages via parameter manipulation (when using SAML bindings that rely on non-XML signatures).
- CVE-2023-23435MEDIUMCVSS 4.0EG 4.02023-12-29
Some Honor products are affected by signature management vulnerability, successful exploitation could cause the forged system file overwrite the correct system file
- CVE-2023-23433MEDIUMCVSS 4.0EG 4.02023-12-29
Some Honor products are affected by signature management vulnerability, successful exploitation could cause the forged system file overwrite the correct system file.
- CVE-2026-18569LOWCVSS 3.7EG 3.72026-08-04
A flaw was found in the backchannel logout endpoint of the keycloak-services component, which is part of the Red Hat Build of Keycloak. This component handles authentication and session management for applications. The issue occurs when an…
- CVE-2026-52686LOWCVSS 3.7EG 3.72026-07-23
The issue is a DNSSEC validation bypass where wildcard expansion proofs (NSEC/NSEC3 records) are accepted without signature validation when the wildcard answer is a CNAME or DNAME record.
- CVE-2025-0824LOWCVSS 3.7EG 3.72026-06-29
Lack of validation for firmware update in Hitachi Hitachi Virtual Storage Platform One Block 23, 24, 26, 28. This issue affects Hitachi Virtual Storage Platform One Block 23, 24, 26, 28: before DKCMAIN A3-04-21-40/00, ESM A3-04-21/00.
- CVE-2026-7689LOWCVSS 3.7EG 3.72026-05-03
A security flaw has been discovered in Dolibarr ERP CRM up to 23.0.2. This vulnerability affects the function dol_verifyHash in the library htdocs/core/lib/security.lib.php of the component Online Signature Module. The manipulation results…
- CVE-2026-6986LOWCVSS 3.7EG 3.72026-04-25
A security vulnerability has been detected in Cesanta Mongoose up to 7.20. This issue affects the function mg_aes_gcm_decrypt of the file /src/tls_aes128.c of the component GCM Authentication Tag Handler. Such manipulation leads to imprope…
- CVE-2026-4115LOWCVSS 3.7EG 3.72026-03-22
A vulnerability was detected in PuTTY 0.83. Affected is the function eddsa_verify of the file crypto/ecc-ssh.c of the component Ed25519 Signature Handler. The manipulation results in improper verification of cryptographic signature. The at…
- CVE-2026-3706LOWCVSS 3.7EG 3.72026-03-08
A vulnerability was determined in mkj Dropbear up to 2025.89. Impacted is the function unpackneg of the file src/curve25519.c of the component S Range Check. This manipulation causes improper verification of cryptographic signature. The at…
- CVE-2026-2968LOWCVSS 3.7EG 3.72026-02-23
A vulnerability was detected in Cesanta Mongoose up to 7.20. This impacts the function mg_chacha20_poly1305_decrypt of the file /src/tls_chacha20.c of the component Poly1305 Authentication Tag Handler. The manipulation results in improper …
- CVE-2011-3374LOWCVSS 3.7EG 3.72019-11-26
It was found that apt-key in apt, all versions, do not correctly validate gpg keys with the master keyring, leading to a potential man-in-the-middle attack.
- CVE-2018-1842LOWCVSS 3.6EG 3.62018-11-09
IBM Cognos Analytics 11 Configuration tool, under certain circumstances, will bypass OIDC namespace signature verification on its id_token. IBM X-Force ID: 150902.
- CVE-2026-81717LOWCVSS 3.5EG 3.52026-08-27
openssl_encrypt (pip package openssl-encrypt) before 1.4.9 contains two weaknesses in the portable USB drive feature, whose threat model treats the removable drive as untrusted (attacker with physical write access). USBDriveCreator._verify…
- CVE-2023-2030LOWCVSS 3.5EG 3.52024-01-12
An issue has been discovered in GitLab CE/EE affecting all versions from 12.2 prior to 16.5.6, 16.6 prior to 16.6.4, and 16.7 prior to 16.7.2 in which an attacker could potentially modify the metadata of signed commits.
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