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CWE-331

149 CVEs • Abstraction: Base

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.

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CVEs (149)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Jose4j Project
1Jose4j
Jun 17, 2026
Oct 25, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
jose4j before v0.9.3 allows attackers to set a low iteration count of 1000 or less.
1Qnap
2Qts
Quts Hero
Jun 17, 2026
Aug 24, 2023
N/A· v4
5.3 MEDIUM· v3
N/A· v2
An insufficient entropy vulnerability has been reported to affect QNAP operating systems. If exploited, the vulnerability possibly allows remote users to predict secret via unspecified vectors. We have already fixed the...Show more
An insufficient entropy vulnerability has been reported to affect QNAP operating systems. If exploited, the vulnerability possibly allows remote users to predict secret via unspecified vectors. We have already fixed the vulnerability in the following versions: QTS 5.0.1.2425 build 20230609 and later QTS 5.1.0.2444 build 20230629 and later QuTS hero h5.1.0.2424 build 20230609 and later Show less
1Broadcom
1Raid Controller Web Interface
Jun 17, 2026
Aug 15, 2023
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Broadcom RAID Controller web interface is vulnerable to insufficient randomness due to improper use of ssl.rnd to setup CIM connection
1Rws
1Worldserver
Jun 17, 2026
Aug 1, 2023
N/A· v4
5.3 MEDIUM· v3
N/A· v2
Session tokens in RWS WorldServer 11.7.3 and earlier have a low entropy and can be enumerated, leading to unauthorized access to user sessions.
1Ovarro
5Tbox Lt2 Firmware
Tbox Ms Cpu32 S2 FirmwareTbox Ms Cpu32 Firmware+2 more
Jun 17, 2026
Jul 3, 2023
N/A· v4
5.9 MEDIUM· v3
N/A· v2
​The affected TBox RTUs generate software security tokens using insufficient entropy. The random seed used to generate the software tokens is not initialized correctly, and other parts of the token are generated using p...Show more
​The affected TBox RTUs generate software security tokens using insufficient entropy. The random seed used to generate the software tokens is not initialized correctly, and other parts of the token are generated using predictable time-based values. An attacker with this knowledge could successfully brute force the token and authenticate themselves. Show less
1Cmscommander
1Cms Commander
Jun 17, 2026
Jun 20, 2023
N/A· v4
9.8 CRITICAL· v3
N/A· v2
The CMS Commander plugin for WordPress is vulnerable to authorization bypass due to the use of an insufficiently unique cryptographic signature on the 'cmsc_add_site' function in versions up to, and including, 2.287. Thi...Show more
The CMS Commander plugin for WordPress is vulnerable to authorization bypass due to the use of an insufficiently unique cryptographic signature on the 'cmsc_add_site' function in versions up to, and including, 2.287. This makes it possible for unauthenticated attackers to the plugin to change the '_cmsc_public_key' in the plugin config, providing access to the plugin's remote control functionalities, such as creating an admin access URL, which can be used for privilege escalation. This can only be exploited if the plugin has not been configured yet, however, if combined with another arbitrary plugin installation and activation vulnerability, the impact can be severe.Show less
1Crypto Js Project
1Crypto Js
Jun 17, 2026
Jun 12, 2023
N/A· v4
5.3 MEDIUM· v3
N/A· v2
The crypto-js package before 3.2.1 for Node.js generates random numbers by concatenating the string "0." with an integer, which makes the output more predictable than necessary.
1Cisco
3Adaptive Security Appliance
Firepower Threat DefenseSecure Firewall Threat Defense
Aug 11, 2026
Mar 23, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
A vulnerability in the deterministic random bit generator (DRBG), also known as pseudorandom number generator (PRNG), in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software...Show more
A vulnerability in the deterministic random bit generator (DRBG), also known as pseudorandom number generator (PRNG), in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software for Cisco ASA 5506-X, ASA 5508-X, and ASA 5516-X Firewalls could allow an unauthenticated, remote attacker to cause a cryptographic collision, enabling the attacker to discover the private key of an affected device. This vulnerability is due to insufficient entropy in the DRBG for the affected hardware platforms when generating cryptographic keys. An attacker could exploit this vulnerability by generating a large number of cryptographic keys on an affected device and looking for collisions with target devices. A successful exploit could allow the attacker to impersonate an affected target device or to decrypt traffic secured by an affected key that is sent to or from an affected target device.Show less
1Suse
1Rancher
Jun 17, 2026
Feb 7, 2023
N/A· v4
9.8 CRITICAL· v3
N/A· v2
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...Show more
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 prior to 2.7.1.Show less
1Goutils Project
1Goutils
Jun 17, 2026
Dec 27, 2022
N/A· v4
9.1 CRITICAL· v3
N/A· v2
Randomly-generated alphanumeric strings contain significantly less entropy than expected. The RandomAlphaNumeric and CryptoRandomAlphaNumeric functions always return strings containing at least one digit from 0 to 9. Thi...Show more
Randomly-generated alphanumeric strings contain significantly less entropy than expected. The RandomAlphaNumeric and CryptoRandomAlphaNumeric functions always return strings containing at least one digit from 0 to 9. This significantly reduces the amount of entropy in short strings generated by these functions.Show less
1Phpservermonitor
1Php Server Monitor
Jun 17, 2026
Nov 15, 2022
N/A· v4
5.3 MEDIUM· v3
N/A· v2
A vulnerability, which was classified as problematic, was found in phpservermon. Affected is the function setUserLoggedIn of the file src/psm/Service/User.php. The manipulation leads to use of predictable algorithm in ra...Show more
A vulnerability, which was classified as problematic, was found in phpservermon. Affected is the function setUserLoggedIn of the file src/psm/Service/User.php. The manipulation leads to use of predictable algorithm in random number generator. The exploit has been disclosed to the public and may be used. The name of the patch is bb10a5f3c68527c58073258cb12446782d223bc3. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-213744.Show less
1Phpservermonitor
1Php Server Monitor
Jun 17, 2026
Nov 15, 2022
N/A· v4
5.3 MEDIUM· v3
N/A· v2
A vulnerability, which was classified as problematic, was found in phpservermon. This affects the function generatePasswordResetToken of the file src/psm/Service/User.php. The manipulation leads to use of predictable alg...Show more
A vulnerability, which was classified as problematic, was found in phpservermon. This affects the function generatePasswordResetToken of the file src/psm/Service/User.php. The manipulation leads to use of predictable algorithm in random number generator. The exploit has been disclosed to the public and may be used. The name of the patch is 3daa804d5f56c55b3ae13bfac368bb84ec632193. It is recommended to apply a patch to fix this issue. The identifier VDB-213717 was assigned to this vulnerability.Show less
1Cisco
1Secure Firewall Management Center
Jun 17, 2026
Nov 15, 2022
N/A· v4
5.3 MEDIUM· v3
N/A· v2
A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to access sensitive information. This vulnerability is due to m...Show more
A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to access sensitive information. This vulnerability is due to missing authorization for certain resources in the web-based management interface together with insufficient entropy in these resource names. An attacker could exploit this vulnerability by sending a series of HTTPS requests to an affected device to enumerate resources on the device. A successful exploit could allow the attacker to retrieve sensitive information from the device.Show less
1Zyxel
10Gs1900 10hp Firmware
Gs1900 16 FirmwareGs1900 24 Firmware+7 more
Jun 17, 2026
Sep 20, 2022
N/A· v4
5.9 MEDIUM· v3
N/A· v2
An insufficient entropy vulnerability caused by the improper use of randomness sources with low entropy for RSA key pair generation was found in Zyxel GS1900 series firmware versions prior to V2.70. This vulnerability co...Show more
An insufficient entropy vulnerability caused by the improper use of randomness sources with low entropy for RSA key pair generation was found in Zyxel GS1900 series firmware versions prior to V2.70. This vulnerability could allow an unauthenticated attacker to retrieve a private key by factoring the RSA modulus N in the certificate of the web administration interface.Show less
1Dproxy Nexgen Project
1Dproxy Nexgen
Jun 17, 2026
Aug 15, 2022
N/A· v4
5.3 MEDIUM· v3
N/A· v2
dproxy-nexgen (aka dproxy nexgen) uses a static UDP source port (selected randomly only at boot time) in upstream queries sent to DNS resolvers. This allows DNS cache poisoning because there is not enough entropy to prev...Show more
dproxy-nexgen (aka dproxy nexgen) uses a static UDP source port (selected randomly only at boot time) in upstream queries sent to DNS resolvers. This allows DNS cache poisoning because there is not enough entropy to prevent traffic injection attacks.Show less
1Totd Project
1Totd
Jun 17, 2026
Aug 15, 2022
N/A· v4
9.8 CRITICAL· v3
N/A· v2
totd 1.5.3 uses a fixed UDP source port in upstream queries sent to DNS resolvers. This allows DNS cache poisoning because there is not enough entropy to prevent traffic injection attacks.
1Apache
1Openoffice
Jun 17, 2026
Aug 15, 2022
N/A· v4
8.8 HIGH· v3
N/A· v2
Apache OpenOffice supports the storage of passwords for web connections in the user's configuration database. The stored passwords are encrypted with a single master key provided by the user. A flaw in OpenOffice existed...Show more
Apache OpenOffice supports the storage of passwords for web connections in the user's configuration database. The stored passwords are encrypted with a single master key provided by the user. A flaw in OpenOffice existed where master key was poorly encoded resulting in weakening its entropy from 128 to 43 bits making the stored passwords vulnerable to a brute force attack if an attacker has access to the users stored config. This issue affects: Apache OpenOffice versions prior to 4.1.13. Reference: CVE-2022-26307 - LibreOfficeShow less
1Embedthis
1Goahead
Jun 17, 2026
Aug 8, 2022
N/A· v4
9.8 CRITICAL· v3
N/A· v2
websda.c in GoAhead WebServer 2.1.8 has insufficient nonce entropy because the nonce calculation relies on the hardcoded onceuponatimeinparadise value, which does not follow the secret-data guideline for HTTP Digest Acce...Show more
websda.c in GoAhead WebServer 2.1.8 has insufficient nonce entropy because the nonce calculation relies on the hardcoded onceuponatimeinparadise value, which does not follow the secret-data guideline for HTTP Digest Access Authentication in RFC 7616 section 3.3 (or RFC 2617 section 3.2.1). NOTE: 2.1.8 is a version from 2003; however, the affected websda.c code appears in multiple derivative works that may be used in 2021. Recent GoAhead software is unaffected.Show less
2Dell
Oracle
6Bsafe Crypto C Micro Edition
Bsafe Micro Edition SuiteDatabase+3 more
Jun 17, 2026
Jul 11, 2022
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
Dell BSAFE Crypto-C Micro Edition, versions before 4.1.5, and Dell BSAFE Micro Edition Suite, versions before 4.6, contain an Improper Input Validation Vulnerability.
2Dell
Oracle
3Bsafe Crypto C Micro Edition
Bsafe Micro Edition SuiteRetail Customer Insights
Jun 17, 2026
Jul 11, 2022
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
Dell BSAFE Crypto-C Micro Edition, versions before 4.1.5, and Dell BSAFE Micro Edition Suite, versions before 4.5.2, contain a Key Management Error Vulnerability.