Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature in the VerifyDelegate function. An attacker in control of a compromised TUF repository can bypass signature validation and modify metadata files by setting the signature threshold to 0...

Improper Verification of Cryptographic Signature

Overview sm-crypto is a sm-crypto Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the SM2 signature verification process. An attacker can create a new valid signature for a previously signed message by manipulating an existing signature...

Improper Verification of Cryptographic Signature

Overview org.webjars.npm:sm-crypto is a sm-crypto Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the SM2 signature verification process. An attacker can create a new valid signature for a previously signed message by manipulating an existi...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the JWT verification process. An attacker can gain unauthorized enrollment of rogue devices by submitting a forged JWT with arbitrary identity claims, as the system fails to verify th...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the JWT verification process. An attacker can gain unauthorized enrollment of rogue devices by submitting a forged JWT with arbitrary identity claims, as the system fails to verify th...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the JWT verification process. An attacker can gain unauthorized enrollment of rogue devices by submitting a forged JWT with arbitrary identity claims, as the system fails to verify th...

PT-2026-2761

Name of the Vulnerable Software and Affected Versions Windows Admin Center versions prior to 0.70.00 Description The issue involves improper verification of cryptographic signatures within Windows Admin Center. Exploitation may allow an attacker with local administrator access to elevate privileg...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the VerifyBundle function in the verify.go file. An attacker can bypass artifact integrity checks by crafting a bundle that includes any arbitrary Rekor entry, allowing successful...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the VerifyBundle function in the verify.go file. An attacker can bypass artifact integrity checks by crafting a bundle that includes any arbitrary Rekor entry, allowing successful...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the VerifyBundle function in the verify.go file. An attacker can bypass artifact integrity checks by crafting a bundle that includes any arbitrary Rekor entry, allowing successful...

IGEL OS < 11.0.0 Secure Boot bypass (CVE-2025-47827)

The version of IGEL OS running on the remote host is prior to version 11. It is, therefore, affected by a cryptographic signature verification vulnerability in the igel-flash-driver module. An attacker could exploit this flaw to bypass Secure Boot protections. By leveraging the improper...

CISA Adds One Known Exploited Vulnerability to Catalog

CISA has added one new vulnerability to its Known Exploited Vulnerabilities KEV Catalog, based on evidence of active exploitation. CVE-2025-59718link is external Fortinet Multiple Products Improper Verification of Cryptographic Signature Vulnerability This type of vulnerability is a frequent atta...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the HMAC computation. An attacker can bypass intended challenge expiration and reuse previously solved challenges by submitting a valid proof-of-work with a modified expiration value,...

Improper Verification of Cryptographic Signature

Overview altcha-lib is an A library for creating and verifying ALTCHA challenges for Node.js, Bun and Deno. Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the HMAC computation. An attacker can bypass intended challenge expiration and reuse...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the HMAC computation. An attacker can bypass intended challenge expiration and reuse previously solved challenges by submitting a valid proof-of-work with a modified expiration value,...

Improper Verification of Cryptographic Signature

Overview altcha is a The ALTCHA Python Library is a lightweight, zero-dependency library designed for creating and verifying ALTCHA challenges, specifically tailored for Python applications. Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via t...

Improper Verification of Cryptographic Signature

Overview altcha is an A lightweight library for creating and verifying ALTCHA challenges. Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the HMAC computation. An attacker can bypass intended challenge expiration and reuse previously solved...

Fortinet FortiWeb ApacheCookie_parse Improper Verification of Cryptographic Signature Authentication Bypass Vulnerability

This vulnerability allows remote attackers to bypass authentication on affected installations of Fortinet FortiWeb. Authentication is not required to exploit this vulnerability. The specific flaw exists within the ApacheCookieparse method. The issue results from the lack of proper verification of...

CVE-2025-64786

Acrobat Reader versions 24.001.30264, 20.005.30793, 25.001.20982, 24.001.30273, 20.005.30803 and earlier are affected by an Improper Verification of Cryptographic Signature vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to gain limited...

CVE-2025-59719

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...