Weakness (CWE)
CWE-331: Insufficient Entropy
The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others.
How to prevent it (1 mitigation)
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Implementation
Determine the necessary entropy to adequately provide for randomness and predictability. This can be achieved by increasing the number of bits of objects such as keys and seeds.
Source: MITRE CWE-331
47 results · Clear filters · Feed
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High 7.8CVE-2026-92209 Public exploit
NoMachine Redis Improper Authentication Local Privilege Escalation Vulnerability
NoMachine Redis Improper Authentication Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of NoMachine. An attacker must first obtain the ability to execute low-privileged code…
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High 8.1
LangBot before 4.10.11 Authentication Bypass via Weak Recovery Key
LangBot before 4.10.11 generates password recovery keys with only 24 bits of entropy and applies no rate limiting to the unauthenticated reset-password endpoint. Remote attackers knowing the administrator email can exhaust the keyspace through concurrent requ…
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High 7.4
A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). A session identifier is generated using an…
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High 7.5
Combodo iTop: Weak secret generation for inline image
Combodo iTop is a web based IT service management tool. Prior to 3.2.3, inline images that are accessible without being authenticated are protected by a weak 24-bit pseudo-random secret. This issue has been fixed in version 3.2.3.
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High 8.7
Nexus Repository Manager - Insufficient Entropy in Format-Specific API Key Generation
A vulnerability in Sonatype Nexus Repository Manager's format-specific API key generation may allow a remote attacker to gain unauthorized access to repository operations as a targeted user. A format-specific API key realm (NuGet API Key, Docker Bearer Token,…
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High 7.1
DPA Countermeasures weakening on Series 3 devices
SYMCRYPTO is the SiXG301's host side hardware engine accessed by PSA crypto library that accelerates symmetric cryptographic operations (AES encryption/decryption and hashing). DPA Countermeasures on SYMCRYPTO can be weakened (reduced entropy) by forcing cert…
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High 7.5
Authen::TOTP versions before 0.1.1 for Perl generate secrets using rand
Authen::TOTP versions before 0.1.1 for Perl generate secrets using rand. Secrets were generated using Perl's built-in rand function, which is predictable and unsuitable for security usage.
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High 7.3
Crypt::DSA versions before 1.20 for Perl generate seeds using rand
Crypt::DSA versions before 1.20 for Perl generate seeds using rand. Seeds were generated using Perl's built-in rand function, which is predictable and unsuitable for security usage.
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High 7.5
Trog::TOTP versions before 1.006 for Perl generate secrets using rand
Trog::TOTP versions before 1.006 for Perl generate secrets using rand. Secrets were generated using Perl's built-in rand function, which is predictable and unsuitable for security usage.
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High 8.7
Insufficient Entropy vulnerability on Multiple Products
CWE‑331: Insufficient Entropy vulnerability exists that could lead to unauthorized access when an attacker on the network can exploit weaknesses in session‑management protections.
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High 8.7
Weak webstax_auth Cookie Authentication Allows Privilege Escalation
A privilege escalation vulnerability in Microchip IStaX allows an authenticated low-privileged user to recover a shared per-device cookie secret from their own webstax_auth session cookie and forge a new cookie with administrative privileges.This issue affect…
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High 8.2
Auth0 Symfony SDK has Insufficient Entropy in Cookie Encryption
### Impact In applications built with the Auth0 PHP SDK, cookies are encrypted with insufficient entropy, which may result in threat actors brute-forcing the encryption key and forging session cookies. ### Am I Affected? Consumers are affected if their applic…
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High 8.2
Auth0 WordPress Plugin has Insufficient Entropy in Cookie Encryption
### Impact In applications built with the Auth0 PHP SDK, cookies are encrypted with insufficient entropy, which may result in threat actors brute-forcing the encryption key and forging session cookies. ### Am I Affected? Consumers are affected if their applic…
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High 8.2
Auth0 laravel-auth0 SDK has Insufficient Entropy in Cookie Encryption
### Impact In applications built with the Auth0 PHP SDK, cookies are encrypted with insufficient entropy, which may result in threat actors brute-forcing the encryption key and forging session cookies. ### Am I Affected? You are affected if you meet the follo…
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High 8.2
Auth0 PHP SDK Insufficient Entropy in Cookie Encryption
Auth0-PHP is a PHP SDK for Auth0 Authentication and Management APIs. From version 8.0.0 to before version 8.19.0, in applications built with the Auth0 PHP SDK, cookies are encrypted with insufficient entropy, which may result in threat actors brute-forcing th…
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High —
libcrux has All-Zero Key Generation Upon Catastrophic RNG Failure
The libcrux-ed25519 key generation samples Ed25519 secret keys from a provided CSPRNG in a loop for up to 100 attempts until a non-zero key is found. If a non-zero key could not be sampled within 100 attempts the key generation function would silently continu…
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High 7.7
Insecure Encryption in Communication with the Web Interface on TP-Link VX800v
A weakness in the web interface’s application layer encryption in VX800v v1.0 allows an adjacent attacker to brute force the weak AES key and decrypt intercepted traffic. Successful exploitation requires network proximity but no authentication, and may result…
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High 8.7
RustCrypto SM2-PKE has 32-bit Biased Nonce Vulnerability
RustCrypto: Elliptic Curves is general purpose Elliptic Curve Cryptography (ECC) support, including types and traits for representing various elliptic curve forms, scalars, points, and public/secret keys composed thereof. In versions 0.14.0-pre.0 and 0.14.0-r…
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High 8.8
QNO Technology｜VPN Firewall - Insufficient Entropy
VPN Firewall developed by QNO Technology has a Insufficient Entropy vulnerability, allowing unauthenticated remote attackers to obtain any logged-in user session through brute-force attacks and subsequently log into the system.
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High 7.1
Lack of entropy allows registered low-privileged users of Litmus to crack valid JWT tokens and gain admin privileges
The Litmus platform uses JWT for authentication and authorization, but the secret being used for signing the JWT is only 6 bytes long at its core, which makes it extremely easy to crack.
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High 8.9
A CWE-331: Insufficient Entropy vulnerability exists that could cause root password discovery when the password generat…
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High 8.1
Mojolicious versions from 0.999922 for Perl uses a hard coded string, or the application's class name, as an HMAC session cookie secret by default
Mojolicious versions from 0.999922 for Perl uses a hard coded string, or the application's class name, as an HMAC session cookie secret by default. These predictable default secrets can be exploited by an attacker to forge session cookies. An attacker who kn…
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High 7.7
Data::Entropy for Perl uses insecure rand() function for cryptographic functions
Data::Entropy for Perl 0.007 and earlier use the rand() function as the default source of entropy, which is not cryptographically secure, for cryptographic functions.
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High 7.5
Limited secret space in LLDP packets used in onos v2.7.0 allows attackers to obtain the private key via a bruteforce at…
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High 8.8
Perl's Crypt::Random module after 1.05 and before 1.56 may use rand() function for cryptographic functions
Crypt::Random Perl package 1.05 through 1.55 may use rand() function, which is not cryptographically strong, for cryptographic functions. If the Provider is not specified and /dev/urandom or an Entropy Gathering Daemon (egd) service is not available Crypt::Ra…
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High 7.5CVE-2024-53522 Public exploit
Bangkok Medical Software HOSxP XE v4.64.11.3 was discovered to contain a hardcoded IDEA Key-IV pair in the HOSxPXE4.exe…
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High 8.2
The Eufy Homebase 2 before firmware version 3.3.4.1h creates a dedicated wireless network for its ecosystem, which serv…
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High 8.0
Openshift-console: oauth2 insufficient state parameter entropy
An insufficient entropy vulnerability was found in the Openshift Console. In the authorization code type and implicit grant type, the OAuth2 protocol is vulnerable to a Cross-Site Request Forgery (CSRF) attack if the state parameter is used inefficiently. Thi…
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High 7.5
Zendframework Potential Information Disclosure and Insufficient Entropy vulnerability
In Zend Framework, Zend_Captcha_Word (v1) and Zend\Captcha\Word (v2) generate a "word" for a CAPTCHA challenge by selecting a sequence of random letters from a character set. Prior to this advisory, the selection was performed using PHP's internal array_rand(…
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High 7.5
ZendFramework1 Potential Insufficient Entropy Vulnerability
We discovered several methods used to generate random numbers in ZF1 that potentially used insufficient entropy. These random number generators are used in the following method calls: ``` Zend_Ldap_Attribute::createPassword Zend_Form_Element_Hash::_generateHa…
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High 7.5
Zend-Captcha Information Disclosure and Insufficient Entropy vulnerability
In Zend Framework, `Zend_Captcha_Word` (v1) and `Zend\Captcha\Word` (v2) generate a "word" for a CAPTCHA challenge by selecting a sequence of random letters from a character set. Prior to this advisory, the selection was performed using PHP's internal `array_…
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High 7.5
SteVe v3.6.0 was discovered to use predictable transaction ID's when receiving a StartTransaction request. This vulnera…
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High 8.3
Insufficient Entropy in GitHub Enterprise Server Management Console Invitation Token
An insufficient entropy vulnerability was identified in GitHub Enterprise Server (GHES) that allowed an attacker to brute force a user invitation to the GHES Management Console. To exploit this vulnerability, an attacker would need knowledge that a user invit…
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High 7.5
Insufficient entropy vulnerability could lead to authentication bypass
An Insufficient Entropy vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow an unauthenticated remote attacker to brute-force session tokens and bypass authentication. See product Instruction Manual Appendix A dated 20230830 for more…
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High 7.5
jose4j uses weak cryptographic algorithm
jose4j before v0.9.3 allows attackers to set a low iteration count of 1000 or less.
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High 7.1
Rancher: Non-random authentication token
A Insufficient Entropy vulnerability in SUSE Rancher allows attackers that gained knowledge of the cattle-token to continue abusing this even after the token was renewed. This issue affects: SUSE Rancher Rancher versions prior to 2.6.10; Rancher versions prio…
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High 7.1
Dell BSAFE Crypto-C Micro Edition, versions before 4.1.5, and Dell BSAFE Micro Edition Suite, versions before 4.5.2, co…
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High 8.3
Insecure entropy in argo-cd
Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. All versions of Argo CD starting with v0.11.0 are vulnerable to a variety of attacks when an SSO login is initiated from the Argo CD CLI or UI. The vulnerabilities are due to the use of…
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High 7.5
Dell Networking X-Series firmware versions prior to 3.0.1.8 contain an authentication bypass vulnerability. A remote un…
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High 7.5
Use of Cryptographically Weak Pseudo-Random Number Generator in Rclone
An issue was discovered in Rclone before 1.53.3. Due to the use of a weak random number generator, the password generator has been producing weak passwords with much less entropy than advertised. The suggested passwords depend deterministically on the time th…