CWE-347— Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.— MITRE CWE catalog
1,003 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-347page 3 of 21
- CVE-2019-6318CRITICALCVSS 9.8EG 9.82019-04-11
HP LaserJet Enterprise printers, HP PageWide Enterprise printers, HP LaserJet Managed printers, HP Officejet Enterprise printers have an insufficient solution bundle signature validation that potentially allows execution of arbitrary code.
- CVE-2018-5923CRITICALCVSS 9.8EG 9.82019-03-27
In HP LaserJet Enterprise, HP PageWide Enterprise, HP LaserJet Managed, and HP OfficeJet Enterprise Printers, solution application signature checking may allow potential execution of arbitrary code.
- CVE-2018-8955CRITICALCVSS 9.8EG 9.82018-10-24
The installer for BitDefender GravityZone relies on an encoded string in a filename to determine the URL for installation metadata, which allows remote attackers to execute arbitrary code by changing the filename while leaving the file's d…
- CVE-2017-3198CRITICALCVSS 9.8EG 9.82018-07-09
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 …
- CVE-2018-12356CRITICALCVSS 9.8EG 9.82018-06-15
An issue was discovered in password-store.sh in pass in Simple Password Store 1.7.x before 1.7.2. The signature verification routine parses the output of GnuPG with an incomplete regular expression, which allows remote attackers to spoof f…
- CVE-2017-18146CRITICALCVSS 9.8EG 9.82018-04-11
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 …
- CVE-2018-1000076CRITICALCVSS 9.8EG 9.82018-03-13
RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a Improper Verification of Cryptographi…
- CVE-2018-1287CRITICALCVSS 9.8EG 9.82018-02-14
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-2017-2423CRITICALCVSS 9.8EG 9.82017-04-02
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 …
- CVE-2025-59719CRITICALCVSS 9.1EG 9.82025-12-09
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 authenticatio…
- CVE-2023-5347CRITICALCVSS 9.1EG 9.82024-01-09
An Improper Verification of Cryptographic Signature vulnerability in the update process of Korenix JetNet Series allows replacing the whole operating system including Trusted Executables. This issue affects JetNet devices older than firmw…
- CVE-2020-35169CRITICALCVSS 9.1EG 9.82022-07-11
Dell BSAFE Crypto-C Micro Edition, versions before 4.1.5, and Dell BSAFE Micro Edition Suite, versions before 4.5.2, contain an Improper Input Validation Vulnerability.
- CVE-2021-24020CRITICALCVSS 7.5EG 9.82021-07-09
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 allo…
- CVE-2025-2866CRITICALCVSS 5.5EG 9.82025-04-27
Improper Verification of Cryptographic Signature vulnerability in LibreOffice allows PDF Signature Spoofing by Improper Validation. In the affected versions of LibreOffice a flaw in the verification code for adbe.pkcs7.sha1 signatures …
- CVE-2026-108971CRITICALCVSS 9.6EG 9.62026-10-13
A flaw has been found in D-Link DCS-930L B1.08B4. This impacts the function mpfd_decode of the file bootloader_region.bin of the component Emergency HTTP Recovery Server. Executing a manipulation of the argument firmware can lead to improp…
- CVE-2026-58426CRITICALCVSS 9.6EG 9.62026-07-03
Gitea Actions Artifacts V4 signed URL HMAC ambiguity allows cross-repository artifact read and cross-task upload-state write
- CVE-2026-1568CRITICALCVSS 9.6EG 9.62026-02-03
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 Cons…
- CVE-2025-59334CRITICALCVSS 9.6EG 9.62025-09-16
Linkr is a lightweight file delivery system that downloads files from a webserver. Linkr versions through 2.0.0 do not verify the integrity or authenticity of .linkr manifest files before using their contents, allowing a tampered manifest …
- CVE-2025-54982CRITICALCVSS 9.6EG 9.62025-08-05
An improper verification of cryptographic signature in Zscaler's SAML authentication mechanism on the server-side allowed an authentication abuse.
- CVE-2025-32977CRITICALCVSS 9.6EG 9.62025-06-24
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…
- CVE-2023-28801CRITICALCVSS 9.6EG 9.62023-08-31
An Improper Verification of Cryptographic Signature in the SAML authentication of the Zscaler Admin UI allows a Privilege Escalation.This issue affects Admin UI: from 6.2 before 6.2r.
- CVE-2026-46684CRITICALCVSS 9.5EG 9.52026-07-15
DataEase is an open source data visualization and analysis tool. Prior to 2.10.23, DataEase enterprise token handling can let TokenFilter#doFilter() pass X-DE-TOKEN values to TokenUtils.validate(), which checks only token presence and leng…
- CVE-2026-18397CRITICALCVSS 9.4EG 9.42026-10-01
This vulnerability enables unauthenticated remote code execution (RCE) on a victim's machine by exploiting a combination of cryptographic weaknesses and memory management issues in the SConnect native host component. The attack leverages …
- CVE-2025-59934CRITICALCVSS 9.4EG 9.42025-09-26
Formbricks is an open source qualtrics alternative. Prior to version 4.0.1, Formbricks is missing JWT signature verification. This vulnerability stems from a token validation routine that only decodes JWTs (jwt.decode) without verifying th…
- CVE-2026-91187CRITICALCVSS 9.3EG 9.32026-09-24
Improper Verification of Cryptographic Signature vulnerability in dashbit nimble_zta allows an unauthenticated remote attacker to authenticate as an arbitrary Cloudflare service token. Applications using the Cloudflare Zero Trust authentic…
- CVE-2026-57910CRITICALCVSS 9.3EG 9.32026-08-25
Improper authentication in the WatchGuard Agent allows an unauthenticated attacker with network access to cause the agent to execute arbitrary code with elevated privileges.
- CVE-2026-54733CRITICALCVSS 9.3EG 9.32026-07-16
The Microsoft 365 and Microsoft Entra ID Plugins for Moodle provide Office 365 and Azure Active Directory integration for Moodle. Prior to 4.5.6, 5.0.5, and 5.1.1, the Microsoft Office 365 Integration plugin local_o365 Teams SSO endpoint s…
- CVE-2026-22097CRITICALCVSS 9.3EG 9.32026-07-13
The firmware update mechanism does not include cryptographic signature validation. This allows anyone with access to the firmware update capability to upload arbitrary files which can then lead to arbitrary code execution.
- CVE-2026-46423CRITICALCVSS 9.3EG 9.32026-06-24
Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.0, 8.4.1, 8.3.3, 8.2.3, 8.1.4, 8.0.5, 7.13.7, and 7.10.11, Rocket.Chat's SAML service provider implementation silently skips both SAML Response…
- CVE-2026-22696CRITICALCVSS 9.3EG 9.32026-01-26
dcap-qvl implements the quote verification logic for DCAP (Data Center Attestation Primitives). A vulnerability present in versions prior to 0.3.9 involves a critical gap in the cryptographic verification process within the dcap-qvl. The l…
- CVE-2025-40934CRITICALCVSS 9.3EG 9.32025-11-26
XML-Sig versions 0.27 through 0.67 for Perl incorrectly validates XML files if signatures are omitted. An attacker can remove the signature from the XML document to make it pass the verification check. XML-Sig is a Perl module to validat…
- CVE-2025-66016CRITICALCVSS 9.3EG 9.32025-11-25
CGGMP24 is a state-of-art ECDSA TSS protocol that supports 1-round signing (requires 3 preprocessing rounds), identifiable abort, and a key refresh protocol. Prior to version 0.6.3, there is a missing check in the ZK proof that enables an …
- CVE-2024-13990CRITICALCVSS 9.3EG 9.32025-09-19
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-t…
- CVE-2025-54369CRITICALCVSS 9.3EG 9.32025-07-24
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 wh…
- CVE-2025-52556CRITICALCVSS 9.3EG 9.32025-06-21
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 perfo…
- CVE-2025-46572CRITICALCVSS 9.3EG 9.32025-05-06
passport-wsfed-saml2 provides passport strategy for both WS-fed and SAML2 protocol. A vulnerability present starting in version 3.0.5 up to and including version 4.6.3 allows an attacker to impersonate any user during SAML authentication b…
- CVE-2025-29775CRITICALCVSS 9.3EG 9.32025-03-14
xml-crypto is an XML digital signature and encryption library for Node.js. An attacker may be able to exploit a vulnerability in versions prior to 6.0.1, 3.2.1, and 2.1.6 to bypass authentication or authorization mechanisms in systems that…
- CVE-2025-29774CRITICALCVSS 9.3EG 9.32025-03-14
xml-crypto is an XML digital signature and encryption library for Node.js. An attacker may be able to exploit a vulnerability in versions prior to 6.0.1, 3.2.1, and 2.1.6 to bypass authentication or authorization mechanisms in systems that…
- CVE-2024-11957CRITICALCVSS 9.3EG 9.32025-03-04
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 12.2.0.1…
- CVE-2025-24800CRITICALCVSS 9.3EG 9.32025-01-28
Hyperbridge is a hyper-scalable coprocessor for verifiable, cross-chain interoperability. A critical vulnerability was discovered in the ismp-grandpa crate, that allowed a malicious prover easily convince the verifier of the finality of ar…
- CVE-2020-26290CRITICALCVSS 9.3EG 9.32020-12-28
Dex is a federated OpenID Connect provider written in Go. In Dex before version 2.27.0 there is a critical set of vulnerabilities which impacts users leveraging the SAML connector. The vulnerabilities enables potential signature bypass due…
- CVE-2026-105869CRITICALCVSS 9.2EG 9.22026-10-21
Apache Pulsar's MultiRolesTokenAuthorizationProvider authorizes a client with all roles listed in a claim of its JSON Web Token (JWT). The provider is intended for use with token authentication, which verifies the token before authorizatio…
- CVE-2026-102508CRITICALCVSS 9.2EG 9.22026-09-30
Improper Verification of Cryptographic Signature and Improper Certificate Validation in the OPC UA driver of Apache PLC4X (PLC4J) allows an attacker in a network position between client and server to impersonate the OPC UA server and to re…
- CVE-2026-46713CRITICALCVSS 9.2EG 9.22026-08-03
Misskey is an open source, federated social media platform. Versions 12.37.0 and later, but prior to 2026.5.4, contain a vulnerability in the JSON-LD signature validation and compaction process that allows spoofed activities to be accepted…
- CVE-2026-96760CRITICALCVSS 9.8EG 9.12026-09-28
Authlib (v1.7.2 and below) contains a signature verification bypass vulnerability. The JsonWebSignature.deserialize_json() method accepts a JSON Serialization JWS object and returns the payload as successfully verified without checking for…
- CVE-2026-114615CRITICALCVSS 9.1EG 9.12026-10-22
Authlib is a Python library which builds OAuth and OpenID Connect servers. From 1.3.1 until 1.9.0, OctKey.import_key() checks asymmetric-key markers only at byte zero while Authlib's PEM loaders accept leading whitespace, comments, or a by…
- CVE-2026-10141CRITICALCVSS 9.1EG 9.12026-10-20
A Unsigned Firmware vulnerability exists in the boa Firmware Update functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted firmware binary can lead to arbitrary firmware update. An attacker can …
- CVE-2026-102946CRITICALCVSS 9.1EG 9.12026-10-15
joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption (JOSE) standards. Prior to 1.7.4, joserfc.jws.deserialize_json() accepts a JWS General JSON Serialization with an empty signatures ar…
- CVE-2026-96252CRITICALCVSS 9.1EG 9.12026-10-13
Improper verification of cryptographic signature in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.
- CVE-2026-102268CRITICALCVSS 9.1EG 9.12026-09-28
PyJWT is a Python implementation of JSON Web Token standards. Prior to 2.14.0, is_pem_format in jwt/utils.py is affected because is_pem_format does not recognize every PEM representation accepted by the cryptography loader. This occurs whe…
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