Common Weakness Enumeration
CWE-327
Allowed-with-ReviewUse of a Broken or Risky Cryptographic Algorithm
Abstraction: Class · Status: Draft
The product uses a broken or risky cryptographic algorithm or protocol.
999 vulnerabilities reference this CWE, most recent first.
CVE-2026-81859 (GCVE-0-2026-81859)
Vulnerability from cvelistv5 – Published: 2026-09-04 15:02 – Updated: 2026-09-04 18:25
VLAI
EPSS
VEX
Title
Multiple security vulnerabilities are addressed with IBM Cloud Pak for Business Automation iFixes for August 2026.
Summary
CP4BA - IBM Enterprise Records could allow a local attacker to obtain sensitive information due to the use of a broken or risky cryptographic algorithm.
Severity
6.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 17:39 UTC
CWE
- CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7285931 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Cloud Pak for Business Automation |
Affected:
26.0.0 , ≤ 26.0.0 Interim Fix 001
(semver)
Affected: 25.0.0 , ≤ 25.0.0 Interim Fix 005 (semver) Affected: 24.0.1 , ≤ 24.0.1 Interim Fix 008 (semver) Affected: 24.0.0 , ≤ 24.0.0 Interim Fix 009 (semver) cpe:2.3:a:ibm:cloud_pak_for_business_automation:26.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:cloud_pak_for_business_automation:26.0.0:interim_fix_001:*:*:*:*:*:* cpe:2.3:a:ibm:cloud_pak_for_business_automation:25.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:cloud_pak_for_business_automation:25.0.0:interim_fix_005:*:*:*:*:*:* cpe:2.3:a:ibm:cloud_pak_for_business_automation:24.0.1:*:*:*:*:*:*:* cpe:2.3:a:ibm:cloud_pak_for_business_automation:24.0.1:interim_fix_008:*:*:*:*:*:* cpe:2.3:a:ibm:cloud_pak_for_business_automation:24.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:cloud_pak_for_business_automation:24.0.0:interim_fix_009:*:*:*:*:*:* |
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CVE-2026-81822 (GCVE-0-2026-81822)
Vulnerability from cvelistv5 – Published: 2026-09-08 17:39 – Updated: 2026-09-11 14:27
VLAI
EPSS
VEX
Title
AVEVA Pipeline Integrity Monitor Use of a Broken or Risky Cryptographic Algorithm
Summary
The vulnerability, if exploited, could allow a miscreant with read access to PIMBoards project files to reverse engineer PIMBoards users’ app-native passwords through computational brute-forcing of weak hashes, potentially allowing elevation to a PIMBoards administrator user.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 18:28 UTC
CWE
- CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| AVEVA | Pipeline Integrity Monitor |
Affected:
0 , ≤ Versions 2025 SP1 P1 (build 7.1.9580.8513)
(custom)
|
Date Public
2026-09-08 16:58
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CVE-2026-77151 (GCVE-0-2026-77151)
Vulnerability from cvelistv5 – Published: 2026-08-20 19:45 – Updated: 2026-08-21 21:45 X_Open Source
VLAI
EPSS
VEX
Title
lin-snow Ech0 crypto.go MD5Encrypt risky encryption
Summary
A security flaw has been discovered in lin-snow Ech0 up to 5.4.1. Affected by this issue is the function MD5Encrypt of the file internal/util/crypto/crypto.go. Performing a manipulation results in risky cryptographic algorithm. Remote exploitation of the attack is possible. The complexity of an attack is rather high. The exploitation is known to be difficult. Upgrading to version 5.4.2 can resolve this issue. The patch is named 9ce19a3b0d0765086a655f45d3a706ec1810404f. It is recommended to upgrade the affected component.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 21:40 UTC
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/393736 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/393736/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-77151 | third-party-advisory |
| https://vuldb.com/submit/881015 | third-party-advisory |
| https://github.com/lin-snow/Ech0/issues/314 | issue-tracking |
| https://github.com/lin-snow/Ech0/pull/315 | issue-trackingpatch |
| https://github.com/lin-snow/Ech0/commit/9ce19a3b0… | patch |
| https://github.com/lin-snow/Ech0/releases/tag/ech… | patch |
| https://github.com/lin-snow/Ech0/ | product |
Impacted products
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CVE-2026-76133 (GCVE-0-2026-76133)
Vulnerability from cvelistv5 – Published: 2026-08-31 15:30 – Updated: 2026-09-01 16:28
VLAI
EPSS
VEX
Title
Ebyte NA111-M Use of a Broken or Risky Cryptographic Algorithm
Summary
The affected Ebyte
product
uses a deprecated hashing algorithm in an authentication-related
operation. Under conditions where an attacker can manipulate or predict
the authentication exchange, the weak construction may reduce the
assurance provided by the authentication mechanism and facilitate
unauthorized access.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 15:49 UTC
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Ebyte | Ebyte NA111-M Firmware |
Affected:
9013-2-17
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CVE-2026-74888 (GCVE-0-2026-74888)
Vulnerability from cvelistv5 – Published: 2026-08-17 11:04 – Updated: 2026-08-17 12:48
VLAI
EPSS
VEX
Title
openssl_encrypt before 1.4.0 Non-Standard PBKDF2 Key Derivation
Summary
openssl_encrypt versions before 1.4.0 use a non-standard PBKDF2 key derivation construction with iterations=1 per call in an outer loop, creating a KDF whose security properties have not been formally analyzed. Attackers can exploit this weakened key derivation to more efficiently crack passwords protecting legacy encrypted files compared to standard PBKDF2 implementations.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-17 12:48 UTC
CWE
- CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/jahlives/openssl_encrypt/secur… | vendor-advisory |
| https://www.vulncheck.com/advisories/openssl-encr… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jahlives | openssl_encrypt |
Affected:
0 , < 1.4.0
(semver)
Unaffected: 1.4.0 (semver) |
Date Public
2026-02-10 00:00
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CVE-2026-69382 (GCVE-0-2026-69382)
Vulnerability from cvelistv5 – Published: 2026-09-08 17:12 – Updated: 2026-09-14 22:49
VLAI
EPSS
VEX
Title
Microsoft Exchange Server Information Disclosure Vulnerability
Summary
Use of a broken or risky cryptographic algorithm in Microsoft Exchange Server allows an unauthorized attacker to disclose information over a network.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 19:51 UTC
CWE
- CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 23 |
Affected:
15.01.0.0 , < 15.01.2507.073
(custom)
|
|
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 14 |
Affected:
15.02.0.0 , < 15.02.1544.046
(custom)
|
|
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 15 |
Affected:
15.02.0.0 , < 15.02.1748.051
(custom)
|
|
| Microsoft | Microsoft Exchange Server Subscription Edition RTM |
Affected:
15.02.0.0 , < 15.02.2562.049
(custom)
|
Date Public
2026-09-08 14:00
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CVE-2026-67336 (GCVE-0-2026-67336)
Vulnerability from cvelistv5 – Published: 2026-08-01 12:22 – Updated: 2026-08-03 15:23
VLAI
EPSS
VEX
Title
better-auth before 1.6.11 Insecure Cryptographic Defaults via oidcProvider
Summary
better-auth versions before 1.6.11 contain insecure cryptographic defaults in the oidcProvider and mcp plugins that advertise the none algorithm and accept plain PKCE by default. Attackers can exploit algorithm negotiation to accept unsigned tokens or intercept authorization codes when PKCE plain is used instead of the required S256 method.
Severity
8.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-03 15:23 UTC
CWE
- CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/better-auth/better-auth/securi… | vendor-advisory |
| https://www.vulncheck.com/advisories/better-auth-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| better-auth | better-auth |
Affected:
0 , < 1.6.11
(semver)
Unaffected: 1.6.11 (semver) cpe:2.3:a:better-auth:better-auth\/oauth-provider:*:*:*:*:*:node.js:*:* |
Date Public
2026-05-31 00:00
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CVE-2026-66407 (GCVE-0-2026-66407)
Vulnerability from cvelistv5 – Published: 2026-08-10 08:00 – Updated: 2026-08-10 17:55
VLAI
EPSS
VEX
Summary
DEEBOT PRO M1 and DEEBOT PRO K1VAC improperly implement authentication in WebSocket communication.
The WebSocket private key may be retrieved through analyzing the traffic data via a man-in-the-middle attack, and communication contents may be altered.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:54 UTC
CWE
- CWE-327 - Use of a broken or risky cryptographic algorithm
Assigner
References
2 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| ECOVACS ROBOTICS | DEEBOT PRO M1 |
Affected:
0 , < M1-1.7.27
(semver)
|
|
| ECOVACS ROBOTICS | DEEBOT PRO K1VAC |
Affected:
0 , < V1.7.821
(semver)
|
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CVE-2026-65309 (GCVE-0-2026-65309)
Vulnerability from cvelistv5 – Published: 2026-07-31 07:17 – Updated: 2026-07-31 16:36
VLAI
EPSS
VEX
Title
Storage of passwords in a reversible format
Summary
ANDRITZ HIPASE-250 (formerly 250 SCALA) in affected versions stores
and transmits user passwords using a reversible format instead of a
one-way password hash. This allows an attacker able to read the
credential store or capture network traffic to recover all stored
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Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-31 16:36 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.andritz.com/ |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| ANDRITZ | HIPASE-250 |
Affected:
0 , ≤ 7.20
(custom)
Unaffected: 7.50 |
|
| ANDRITZ | 250 SCALA |
Affected:
0 , ≤ 7.20
(custom)
Unaffected: 7.50 |
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CVE-2026-63761 (GCVE-0-2026-63761)
Vulnerability from cvelistv5 – Published: 2026-07-20 12:04 – Updated: 2026-07-28 01:05
VLAI
EPSS
VEX
Title
SurrealDB before 3.1.0 Algorithm Downgrade via ES512
Summary
SurrealDB before 3.1.0 silently substitutes the ES384 algorithm when a JWT access method is configured with ALGORITHM ES512 (DEFINE ACCESS ... TYPE JWT ALGORITHM ES512), because the underlying jsonwebtoken crate (v10.x) has no ES512 variant and the mapping defaults to ES384 without any error, warning, or log message. Users who supply the correct P-521 key for ES512 experience authentication handshake failures due to the curve mismatch with ES384 (which expects P-384), and tokens are rejected by external systems expecting genuine ES512 signatures. The flaw cannot be used to forge tokens or compromise data confidentiality or integrity, as ES384 remains cryptographically strong.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-20 13:48 UTC
CWE
- CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/surrealdb/surrealdb/security/a… | vendor-advisory |
| https://www.vulncheck.com/advisories/surrealdb-be… | third-party-advisory |
Impacted products
Date Public
2026-05-27 00:00
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"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
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{
"cvssV3_1": {
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"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
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],
"problemTypes": [
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"descriptions": [
{
"cweId": "CWE-327",
"description": "Use of a Broken or Risky Cryptographic Algorithm",
"lang": "en",
"type": "CWE"
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]
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],
"providerMetadata": {
"dateUpdated": "2026-07-28T01:05:51.441Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
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"references": [
{
"name": "GitHub Security Advisory (GHSA-fwg2-gr34-q3w8)",
"tags": [
"vendor-advisory"
],
"url": "https://github.com/surrealdb/surrealdb/security/advisories/GHSA-fwg2-gr34-q3w8"
},
{
"name": "VulnCheck Advisory: SurrealDB before 3.1.0 Algorithm Downgrade via ES512",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/surrealdb-before-algorithm-downgrade-via-es512"
}
],
"title": "SurrealDB before 3.1.0 Algorithm Downgrade via ES512",
"x_generator": {
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}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-63761",
"datePublished": "2026-07-20T12:04:50.878Z",
"dateReserved": "2026-07-18T12:30:08.354Z",
"dateUpdated": "2026-07-28T01:05:51.441Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
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Mitigation MIT-24
Architecture and Design
Strategy: Libraries or Frameworks
- When there is a need to store or transmit sensitive data, use strong, up-to-date cryptographic algorithms to encrypt that data. Select a well-vetted algorithm that is currently considered to be strong by experts in the field, and use well-tested implementations. As with all cryptographic mechanisms, the source code should be available for analysis.
- For example, US government systems require FIPS 140-2 certification [REF-1192].
- Do not develop custom or private cryptographic algorithms. They will likely be exposed to attacks that are well-understood by cryptographers. Reverse engineering techniques are mature. If the algorithm can be compromised if attackers find out how it works, then it is especially weak.
- Periodically ensure that the cryptography has not become obsolete. Some older algorithms, once thought to require a billion years of computing time, can now be broken in days or hours. This includes MD4, MD5, SHA1, DES, and other algorithms that were once regarded as strong. [REF-267]
Mitigation MIT-52
Architecture and Design
Ensure that the design allows one cryptographic algorithm to be replaced with another in the next generation or version. Where possible, use wrappers to make the interfaces uniform. This will make it easier to upgrade to stronger algorithms. With hardware, design the product at the Intellectual Property (IP) level so that one cryptographic algorithm can be replaced with another in the next generation of the hardware product.
Mitigation
Architecture and Design
Carefully manage and protect cryptographic keys (see CWE-320). If the keys can be guessed or stolen, then the strength of the cryptography itself is irrelevant.
Mitigation MIT-4
Architecture and Design
Strategy: Libraries or Frameworks
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
- Industry-standard implementations will save development time and may be more likely to avoid errors that can occur during implementation of cryptographic algorithms. Consider the ESAPI Encryption feature.
Mitigation MIT-25
Implementation
Architecture and Design
When using industry-approved techniques, use them correctly. Don't cut corners by skipping resource-intensive steps (CWE-325). These steps are often essential for preventing common attacks.
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.
CAPEC-459: Creating a Rogue Certification Authority Certificate
An adversary exploits a weakness resulting from using a hashing algorithm with weak collision resistance to generate certificate signing requests (CSR) that contain collision blocks in their "to be signed" parts. The adversary submits one CSR to be signed by a trusted certificate authority then uses the signed blob to make a second certificate appear signed by said certificate authority. Due to the hash collision, both certificates, though different, hash to the same value and so the signed blob works just as well in the second certificate. The net effect is that the adversary's second X.509 certificate, which the Certification Authority has never seen, is now signed and validated by that Certification Authority.
CAPEC-473: Signature Spoof
An attacker generates a message or datablock that causes the recipient to believe that the message or datablock was generated and cryptographically signed by an authoritative or reputable source, misleading a victim or victim operating system into performing malicious actions.
CAPEC-475: Signature Spoofing by Improper Validation
An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.
CAPEC-608: Cryptanalysis of Cellular Encryption
The use of cryptanalytic techniques to derive cryptographic keys or otherwise effectively defeat cellular encryption to reveal traffic content. Some cellular encryption algorithms such as A5/1 and A5/2 (specified for GSM use) are known to be vulnerable to such attacks and commercial tools are available to execute these attacks and decrypt mobile phone conversations in real-time. Newer encryption algorithms in use by UMTS and LTE are stronger and currently believed to be less vulnerable to these types of attacks. Note, however, that an attacker with a Cellular Rogue Base Station can force the use of weak cellular encryption even by newer mobile devices.
CAPEC-614: Rooting SIM Cards
SIM cards are the de facto trust anchor of mobile devices worldwide. The cards protect the mobile identity of subscribers, associate devices with phone numbers, and increasingly store payment credentials, for example in NFC-enabled phones with mobile wallets. This attack leverages over-the-air (OTA) updates deployed via cryptographically-secured SMS messages to deliver executable code to the SIM. By cracking the DES key, an attacker can send properly signed binary SMS messages to a device, which are treated as Java applets and are executed on the SIM. These applets are allowed to send SMS, change voicemail numbers, and query the phone location, among many other predefined functions. These capabilities alone provide plenty of potential for abuse.
CAPEC-97: Cryptanalysis
Cryptanalysis is a process of finding weaknesses in cryptographic algorithms and using these weaknesses to decipher the ciphertext without knowing the secret key (instance deduction). Sometimes the weakness is not in the cryptographic algorithm itself, but rather in how it is applied that makes cryptanalysis successful. An attacker may have other goals as well, such as: Total Break (finding the secret key), Global Deduction (finding a functionally equivalent algorithm for encryption and decryption that does not require knowledge of the secret key), Information Deduction (gaining some information about plaintexts or ciphertexts that was not previously known) and Distinguishing Algorithm (the attacker has the ability to distinguish the output of the encryption (ciphertext) from a random permutation of bits).