Common Weakness Enumeration

CWE-1394

Use of Default Cryptographic Key

The product uses a default cryptographic key for potentially critical functionality.

CVE-2025-44954 (GCVE-0-2025-44954)

Vulnerability from cvelistv5 – Published: 2025-08-04 00:00 – Updated: 2025-08-05 17:43
VLAI
Summary
RUCKUS SmartZone (SZ) before 6.1.2p3 Refresh Build has a hardcoded SSH private key for a root-equivalent user account.
Severity
9 (Critical)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-1394 - Use of Default Cryptographic Key
Assigner
References
Impacted products
Vendor Product Version
RUCKUS SmartZone Affected: 0 , < 6.1.2p3 Refresh Build (custom)
Create a notification for this product.
Show details on NVD website
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CVE-2025-55049 (GCVE-0-2025-55049)

Vulnerability from cvelistv5 – Published: 2025-09-09 18:52 – Updated: 2025-09-10 16:09
VLAI
Summary
Use of Default Cryptographic Key (CWE-1394)
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Baicells NEUTRINO430 Affected: BaiBLQ_3.0.12
Create a notification for this product.
Date Public
2025-09-09 18:47
Credits
Shahaf Levi
Show details on NVD website
To clipboard 

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CVE-2026-20709 (GCVE-0-2026-20709)

Vulnerability from cvelistv5 – Published: 2026-04-08 18:20 – Updated: 2026-04-08 19:50
VLAI
Summary
Use of Default Cryptographic Key in the hardware for some Intel(R) Pentium(R) Processor Silver Series, Intel(R) Celeron(R) Processor J Series, Intel(R) Celeron(R) Processor N Series may allow an escalation of privilege. Hardware reverse engineer adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via physical access when attack requirements are present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.
Severity
6.6 (Medium)
CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • Escalation of Privilege
  • CWE-1394 - Use of Default Cryptographic Key
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-2215 (GCVE-0-2026-2215)

Vulnerability from cvelistv5 – Published: 2026-02-09 04:32 – Updated: 2026-02-23 09:56
VLAI
Title
rachelos WeRSS we-mp-rss JWT auth.py default key
Summary
A vulnerability was detected in rachelos WeRSS we-mp-rss up to 1.4.8. This issue affects some unknown processing of the file core/auth.py of the component JWT Handler. Performing a manipulation of the argument SECRET_KEY results in use of default cryptographic key. The attack can be initiated remotely. The attack is considered to have high complexity. The exploitability is assessed as difficult. The exploit is now public and may be used.
Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
3.7 (Low)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-1394 - Use of Default Cryptographic Key
Assigner
References
URL Tags
https://vuldb.com/?id.344932 vdb-entrytechnical-description
https://vuldb.com/?ctiid.344932 signaturepermissions-required
https://vuldb.com/?submit.752756 third-party-advisory
https://www.notion.so/WeRSS-Weak-JWT-Key-Leading-… exploit
Impacted products
Vendor Product Version
rachelos WeRSS we-mp-rss Affected: 1.4.0
Affected: 1.4.1
Affected: 1.4.2
Affected: 1.4.3
Affected: 1.4.4
Affected: 1.4.5
Affected: 1.4.6
Affected: 1.4.7
Affected: 1.4.8
Create a notification for this product.
Credits
din4 (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-25815 (GCVE-0-2026-25815)

Vulnerability from cvelistv5 – Published: 2026-02-05 21:14 – Updated: 2026-02-09 19:31 Disputed
VLAI
Summary
Fortinet FortiOS through 7.6.6 allows attackers to decrypt LDAP credentials stored in device configuration files, as exploited in the wild from 2025-12-16 through 2026 (by default, the encryption key is the same across all customers' installations). NOTE: the Supplier's position is that the instance of CWE-1394 is not a vulnerability because customers "are supposed to enable" a non-default option that eliminates the weakness. However, that non-default option can disrupt functionality as shown in the "Managing FortiGates with private data encryption" document, and is therefore intentionally not a default option.
Severity
3.2 (Low)
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-1394 - Use of Default Cryptographic Key
Assigner
References
Impacted products
Vendor Product Version
Fortinet FortiOS Affected: 0 , ≤ 7.6.6 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-5039 (GCVE-0-2026-5039)

Vulnerability from cvelistv5 – Published: 2026-04-23 16:10 – Updated: 2026-04-28 17:45
VLAI
Title
Predictable Default Cryptographic Key Used for DES Encryption in TP-Link TL-WL841N
Summary
TP-Link TL-WR841N v13 uses DES-CBC encryption in the TDDPv2 debug protocol with a cryptographic key derived from default web management credentials, making the key predictable if device is left in default configuration. A network-adjacent attacker can exploit this weakness to gain unauthorized access to the protocol, read debug data, modify certain device configuration values, and trigger device reboot, resulting in loss of integrity and a denial-of-service condition.
Severity
6.1 (Medium)
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-1394 - Use of default cryptographic key
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. TL-WL841N v13 Affected: 0 , < 0.9.1 Build 20231120 Rel.62366 (custom)
Create a notification for this product.
Credits
Ben Grinberg, Adiel Sol, Daniel Lubel, Erez Cohen, Nir Somech, Arad Inbar, Dream Group
Show details on NVD website
To clipboard 

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CVE-2026-54887 (GCVE-0-2026-54887)

Vulnerability from cvelistv5 – Published: 2026-07-02 16:06 – Updated: 2026-07-03 04:29
VLAI
Title
DTLS server cookie bypass during startup window due to empty initial cookie secret
Summary
Use of Default Cryptographic Key vulnerability in Erlang/OTP ssl (DTLS server) allows predictable DTLS cookie computation during the startup window, enabling source address verification bypass. On DTLS server startup, dtls_server_connection:initial_hello/3 initializes previous_cookie_secret to the empty binary (<<>>) instead of a random value. Because HMAC with an empty key is deterministic, anyone who observes the plaintext ClientHello can compute dtls_handshake:cookie(<<>>, IP, Port, Hello) and forge a valid DTLS cookie before the first rotation of the cookie secret. The DTLS cookie (RFC 6347 §4.2.1) is a denial-of-service mitigation that prevents spoofed source IPs from forcing the server to allocate state and perform expensive cryptographic operations; it is not an authentication mechanism. During the window from server startup until the first secret rotation (0 to 15 seconds), an attacker who can observe the plaintext ClientHello can bypass the source address verification, enabling DTLS handshake amplification with spoofed source addresses. This vulnerability is associated with program file lib/ssl/src/dtls_server_connection.erl and program routine dtls_server_connection:initial_hello/3. This issue affects OTP from OTP 20.0 before 29.0.3, 28.5.0.3 and 27.3.4.14 corresponding to ssl from 8.2 before 11.7.3, 11.6.0.3 and 11.2.12.10.
Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-1394 - Use of Default Cryptographic Key
Assigner
EEF
References
Impacted products
Vendor Product Version
Erlang OTP Affected: 8.2 , < * (otp)
    cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:*
 Create a notification for this product.
Erlang OTP Affected: 20.0 , < * (otp)
Affected: e594aad2f87aab39e99fccf9e021bc94e0bbf7d4 , < 888e3bcd72d5406016b9e0de741026bc2a6f114d (git)
    cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
Lukas Backström Ingela Anderton Andin Dan Gudmundsson
Show details on NVD website
To clipboard 

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            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1394",
              "description": "CWE-1394 Use of Default Cryptographic Key",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-03T04:29:00.191Z",
        "orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "shortName": "EEF"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory",
            "related"
          ],
          "url": "https://github.com/erlang/otp/security/advisories/GHSA-p2m2-3c2w-8jp8"
        },
        {
          "tags": [
            "related"
          ],
          "url": "https://cna.erlef.org/cves/CVE-2026-54887.html"
        },
        {
          "tags": [
            "related"
          ],
          "url": "https://osv.dev/vulnerability/EEF-CVE-2026-54887"
        },
        {
          "tags": [
            "x_version-scheme"
          ],
          "url": "https://www.erlang.org/doc/system/versions.html#order-of-versions"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/erlang/otp/commit/888e3bcd72d5406016b9e0de741026bc2a6f114d"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "DTLS server cookie bypass during startup window due to empty initial cookie secret",
      "x_generator": {
        "engine": "cvelib 1.8.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
    "assignerShortName": "EEF",
    "cveId": "CVE-2026-54887",
    "datePublished": "2026-07-02T16:06:04.156Z",
    "dateReserved": "2026-06-16T10:47:13.915Z",
    "dateUpdated": "2026-07-03T04:29:00.191Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}
Mitigation

Phase: Requirements

Description:

  • Prohibit use of default, hard-coded, or other values that do not vary for each installation of the product - especially for separate organizations.
Mitigation

Phase: Architecture and Design

Description:

  • Force the administrator to change the credential upon installation.
Mitigation

Phases: Installation, Operation

Description:

  • The product administrator could change the defaults upon installation or during operation.

No CAPEC attack patterns related to this CWE.

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