Common Weakness Enumeration
CWE-326
Allowed-with-ReviewInadequate Encryption Strength
Abstraction: Class · Status: Draft
The product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required.
631 vulnerabilities reference this CWE, most recent first.
CVE-2026-7830 (GCVE-0-2026-7830)
Vulnerability from cvelistv5 – Published: 2026-07-01 03:33 – Updated: 2026-07-09 04:35
VLAI
EPSS
VEX
Title
UltraVNC MS-Logon II uses 64-bit Diffie-Hellman and seeded libc rand() enabling credential interception
Summary
UltraVNC through 1.8.2.2 uses inadequate cryptography in the MS-Logon II authentication scheme (rfbUltraVNC_MsLogonIIAuth). In rfb/dh.cpp the Diffie-Hellman key exchange is performed with parameters that fit in an unsigned 64-bit integer (DH_MAX_BITS controls the prime size). A 64-bit DH key can be broken by Pollard's rho algorithm in under one second on current hardware. Additionally, the private exponent is generated by the rng() function, which multiplies three libc rand() values seeded from time(NULL). With approximately 31 bits of internal state and a time-based seed, the private exponent is recoverable in under a minute by a passive observer. A network attacker who can observe the MS-Logon II handshake (via sniffing, recording, or man-in-the-middle) can derive the shared DH key and decrypt the encapsulated username and password, resulting in full credential disclosure. This affects legacy MS-Logon II connections; MS-Logon III (X25519 + AES-256-GCM) is unaffected.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://uvnc.com/ | vendor-advisory |
| https://github.com/ultravnc/UltraVNC | product |
| https://www.securin.io/zero-days/cve-2026-7830-31… |
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CVE-2026-5363 (GCVE-0-2026-5363)
Vulnerability from cvelistv5 – Published: 2026-04-15 23:45 – Updated: 2026-04-16 23:10 Unsupported When Assigned
VLAI
EPSS
VEX
Title
Use of weak cryptographic key in TP-Link Archer C7
Summary
Inadequate Encryption Strength vulnerability in TP-Link Archer C7 v5 and v5.8 (uhttpd modules) allows Password Recovery Exploitation. The web interface encrypts the admin password client-side using RSA-1024 before sending it to the router during login.
An adjacent attacker with the ability to intercept network traffic could potentially perform a brute-force or factorization attack against the 1024-bit RSA key to recover the plaintext administrator password, leading to unauthorized access and compromise of the device configuration. This issue affects Archer C7: through Build 20220715.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-326 - Inadequate Encryption Strength
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link Systems Inc. | Archer C7 v5 and v5.8 |
Affected:
0 , ≤ Build 20220715
(custom)
|
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CVE-2026-0510 (GCVE-0-2026-0510)
Vulnerability from cvelistv5 – Published: 2026-01-13 01:15 – Updated: 2026-01-13 18:26
VLAI
EPSS
VEX
Title
Obsolete Encryption Algorithm Used in NW AS Java UME User Mapping
Summary
The User Management Engine (UME) in NetWeaver Application Server for Java (NW AS Java) utilizes an obsolete cryptographic algorithm for encrypting User Mapping data. This weakness could allow an attacker with high-privileged access to exploit the vulnerability under specific conditions potentially leading to partial disclosure of sensitive information.This has low impact on confidentiality with no impact on integrity and availability of the application.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-326 - Inadequate Encryption Strength
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SAP_SE | NW AS Java UME User Mapping |
Affected:
ENGINEAPI 7.50
Affected: SERVERCORE 7.50 Affected: UMEADMIN 7.50 |
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CVE-2025-68703 (GCVE-0-2025-68703)
Vulnerability from cvelistv5 – Published: 2026-01-13 19:27 – Updated: 2026-01-13 19:54
VLAI
EPSS
VEX
Title
Jervis has a Salt for PBKDF2 derived from password
Summary
Jervis is a library for Job DSL plugin scripts and shared Jenkins pipeline libraries. Prior to 2.2, the salt is derived from sha256Sum(passphrase). Two encryption operations with the same password will have the same derived key. This vulnerability is fixed in 2.2.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-326 - Inadequate Encryption Strength
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/samrocketman/jervis/security/a… | x_refsource_CONFIRM |
| https://github.com/samrocketman/jervis/commit/c39… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| samrocketman | jervis |
Affected:
< 2.2
|
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CVE-2025-55248 (GCVE-0-2025-55248)
Vulnerability from cvelistv5 – Published: 2025-10-14 17:00 – Updated: 2026-02-22 17:25
VLAI
EPSS
VEX
Title
.NET, .NET Framework, and Visual Studio Information Disclosure Vulnerability
Summary
Inadequate encryption strength in .NET, .NET Framework, Visual Studio allows an authorized attacker to disclose information over a network.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-326 - Inadequate Encryption Strength
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
15 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | .NET 8.0 |
Affected:
8.0.0 , < 8.0.21
(custom)
|
|
| Microsoft | .NET 9.0 |
Affected:
9.0.0 , < 9.0.10
(custom)
|
|
| Microsoft | Microsoft .NET Framework 2.0 Service Pack 2 |
Affected:
2.0.0 , < 2.0.50727.8981
(custom)
|
|
| Microsoft | Microsoft .NET Framework 3.0 Service Pack 2 |
Affected:
3.0.0 , < 2.0.50727.8981
(custom)
|
|
| Microsoft | Microsoft .NET Framework 3.5 |
Affected:
3.5.0 , < 2.0.50727.8981
(custom)
|
|
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 |
Affected:
4.7.0 , < 4.7.04137.03
(custom)
|
|
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 |
Affected:
4.8.0 , < 4.8.04798.02
(custom)
|
|
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8.1 |
Affected:
4.8.1 , < 4.8.1.09320.02
(custom)
|
|
| Microsoft | Microsoft .NET Framework 3.5.1 |
Affected:
3.5.0 , < 2.0.50727.8981
(custom)
|
|
| Microsoft | Microsoft .NET Framework 4.6.2 |
Affected:
4.7.0 , < 4.7.04137.03
(custom)
|
|
| Microsoft | Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 |
Affected:
4.7.0 , < 4.7.04137.03
(custom)
|
|
| Microsoft | Microsoft .NET Framework 4.8 |
Affected:
4.8.0 , < 4.8.04798.02
(custom)
|
|
| Microsoft | Microsoft Visual Studio 2022 version 17.10 |
Affected:
17.10.0 , < 17.10.20
(custom)
|
|
| Microsoft | Microsoft Visual Studio 2022 version 17.12 |
Affected:
17.12.0 , < 17.12.13
(custom)
|
|
| Microsoft | Microsoft Visual Studio 2022 version 17.14 |
Affected:
17.14.0 , < 17.14.17
(custom)
|
Date Public
2025-10-14 14:00
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CVE-2025-55039 (GCVE-0-2025-55039)
Vulnerability from cvelistv5 – Published: 2025-10-15 07:19 – Updated: 2025-11-04 21:13
VLAI
EPSS
VEX
Title
Apache Spark, Apache Spark: RPC encryption defaults to unauthenticated AES-CTR mode, enabling man-in-the-middle ciphertext modification attacks
Summary
This issue affects Apache Spark versions before 3.4.4, 3.5.2 and 4.0.0.
Apache Spark versions before 4.0.0, 3.5.2 and 3.4.4 use an insecure default network encryption cipher for RPC communication between nodes.
When spark.network.crypto.enabled is set to true (it is set to false by default), but spark.network.crypto.cipher is not explicitly configured, Spark defaults to AES in CTR mode (AES/CTR/NoPadding), which provides encryption without authentication.
This vulnerability allows a man-in-the-middle attacker to modify encrypted RPC traffic undetected by flipping bits in ciphertext, potentially compromising heartbeat messages or application data and affecting the integrity of Spark workflows.
To mitigate this issue, users should either configure spark.network.crypto.cipher to AES/GCM/NoPadding to enable authenticated encryption or
enable SSL encryption by setting spark.ssl.enabled to true, which provides stronger transport security.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/zrgyy9l85nm2c7vk3… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2025/1… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Spark |
Affected:
3.5.0 , < 3.5.2
(semver)
Affected: 0 , < 3.4.4 (semver) |
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CVE-2025-48960 (GCVE-0-2025-48960)
Vulnerability from cvelistv5 – Published: 2025-06-04 13:26 – Updated: 2025-06-04 13:42
VLAI
EPSS
VEX
Summary
Weak server key used for TLS encryption. The following products are affected: Acronis Cyber Protect 16 (Linux, macOS, Windows) before build 39938.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security-advisory.acronis.com/advisories/… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Acronis | Acronis Cyber Protect 16 |
Affected:
unspecified , < 39938
(semver)
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CVE-2025-46833 (GCVE-0-2025-46833)
Vulnerability from cvelistv5 – Published: 2025-05-08 19:27 – Updated: 2025-05-08 19:49
VLAI
EPSS
VEX
Title
Programs/P73_SimplePythonEncryption.py has weak cryptographic key
Summary
Programs/P73_SimplePythonEncryption.py illustrates a simple Python encryption example using the RSA Algorithm. In versions prior to commit 6ce60b1, an attacker may be able to decrypt the data using brute force attacks and because of this the whole application can be impacted. This issue has been patched in commit 6ce60b1. A workaround involves increasing the key size, for RSA or DSA this is at least 2048 bits, for ECC this is at least 256 bits.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-326 - Inadequate Encryption Strength
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/ShashikantSingh09/python-progr… | x_refsource_CONFIRM |
| https://github.com/ShashikantSingh09/python-progr… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ShashikantSingh09 | python-progrrames |
Affected:
< 6ce60b1
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CVE-2025-46409 (GCVE-0-2025-46409)
Vulnerability from cvelistv5 – Published: 2025-08-28 08:27 – Updated: 2025-08-28 14:17
VLAI
EPSS
VEX
Summary
Inadequate encryption strength issue exists in SS1 Ver.16.0.0.10 and earlier (Media version:16.0.0a and earlier). If this vulnerability is exploited, a function that requires authentication may be accessed by a remote unauthenticated attacker.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-326 - Inadequate encryption strength
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| DOS Co., Ltd. | SS1 |
Affected:
Ver.16.0.0.10 and earlier (Media version:16.0.0a and earlier)
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CVE-2025-45764 (GCVE-0-2025-45764)
Vulnerability from cvelistv5 – Published: 2025-08-06 00:00 – Updated: 2025-08-26 18:51 Disputed
VLAI
EPSS
VEX
Summary
jsrsasign v11.1.0 was discovered to contain weak encryption. NOTE: this issue has been disputed by a third party who believes that CVE IDs can be assigned for key lengths in specific applications that use a library, and should not be assigned to the default key lengths in a library. This dispute is subject to review under CNA rules 4.1.4, 4.1.14, and other rules; the dispute tagging is not meant to recommend an outcome for this CVE Record.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-326 - Inadequate Encryption Strength
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jsrsasign project | jsrsasign |
Affected:
11.1.0
(semver)
|
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Mitigation
Architecture and Design
Use an encryption scheme that is currently considered to be strong by experts in the field.
CAPEC-112: Brute Force
In this attack, some asset (information, functionality, identity, etc.) is protected by a finite secret value. The attacker attempts to gain access to this asset by using trial-and-error to exhaustively explore all the possible secret values in the hope of finding the secret (or a value that is functionally equivalent) that will unlock the asset.
CAPEC-192: Protocol Analysis
An adversary engages in activities to decipher and/or decode protocol information for a network or application communication protocol used for transmitting information between interconnected nodes or systems on a packet-switched data network. While this type of analysis involves the analysis of a networking protocol inherently, it does not require the presence of an actual or physical network.
CAPEC-20: Encryption Brute Forcing
An attacker, armed with the cipher text and the encryption algorithm used, performs an exhaustive (brute force) search on the key space to determine the key that decrypts the cipher text to obtain the plaintext.