Common Weakness Enumeration

CWE-1391

Weakness Allowed-with-Review

Use of Weak Credentials

Abstraction: Class · Status: Incomplete

The product uses weak credentials (such as a default key or hard-coded password) that can be calculated, derived, reused, or guessed by an attacker.

Technical nuance

Credentials may be weak for different reasons, such as:

Hard-coded (i.e., static and unchangeable by the administrator)

Default (i.e., the same static value across different deployments/installations, but able to be changed by the administrator)

Predictable (i.e., generated in a way that produces unique credentials across deployments/installations, but can still be guessed with reasonable efficiency)

Previously Compromised (i.e., "leaked" credentials that were published as part of a data breach)

Mapping guidance

This CWE entry is a Class and might have Base-level children that would be more appropriate

Examine children of this entry to see if there is a better fit

Relationships and members
ChildOf: CWE-1390 · View CWE-1000
Modes of introduction
Requirements
Architecture and Design

By design, authentication protocols try to ensure that attackers must perform brute force attacks if they do not know the credentials such as a key or password. However, when the architecture or implementation includes the use of default or hard-coded passwords, these credentials are easily predictable or even fixed.

Installation
Operation
Content history
Submission: CWE Content Team · MITRE · 2022-10-06 · CWE 4.9
Contribution: "Mapping CWE to 62443" Sub-Working Group · CWE-CAPEC ICS/OT SIG · 2023-06-29 · CWE 4.12

Suggested mappings to ISA/IEC 62443.

Contribution: Michal Biesiada · 2023-07-07 · CWE 4.19

Proposed inclusion of already-compromised passwords, leading to modifications of extended description, mitigations, and references

Modification: CWE Content Team · MITRE · 2023-01-31 · CWE 4.10

updated Applicable_Platforms, Demonstrative_Examples, Observed_Examples, References

Modification: CWE Content Team · MITRE · 2023-04-27 · CWE 4.11

updated References, Relationships

Modification: CWE Content Team · MITRE · 2023-06-29 · CWE 4.12

updated Mapping_Notes, Taxonomy_Mappings

Modification: CWE Content Team · MITRE · 2024-02-29 · CWE 4.14

updated Observed_Examples, References

Modification: CWE Content Team · MITRE · 2024-11-19 · CWE 4.16

updated Observed_Examples

Modification: CWE Content Team · MITRE · 2025-09-09 · CWE 4.18

updated References

Modification: CWE Content Team · MITRE · 2025-12-11 · CWE 4.19

updated Common_Consequences, Description, Potential_Mitigations, References, Relationships, Weakness_Ordinalities

Modification: CWE Content Team · MITRE · 2026-10-28 · CWE 5.0

updated Common_Consequences, Description, Modes_of_Introduction, Technical_Nuance

125 vulnerabilities reference this CWE, most recent first.

CVE-2026-129139 (GCVE-0-2026-129139)

Vulnerability from cvelistv5 – Published: 2026-11-13 17:22 – Updated: 2026-11-13 17:22
VLAI
Title
paicoding commit b8206b9 through 903adce Predictable ZSXQ Account Credentials
Summary
paicoding from commit b8206b9 through commit 903adce uses predictable credentials for accounts created via ZSXQ login, because loginByZsxq derives both the username and password solely from the member's ZSXQ number. Unauthenticated attackers can read that number from the victim's /user/{userId} profile page, compute the credentials, and log in via /login/username to take over the account.
CWE
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 8190 records in the last 180 days details
Impacted products
Vendor Product Version
itwanger paicoding Affected: b8206b97cc504b939ca6fdc46e0a8c3e816b14e9 , ≤ 903adce70309d340f7eec51ec3c80cfe3c8326c1 (git)
Create a notification for this product.
Date Public
2026-11-12 05:41
Credits
Show details on NVD website

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CVE-2026-114616 (GCVE-0-2026-114616)

Vulnerability from cvelistv5 – Published: 2026-10-22 21:14 – Updated: 2026-10-30 20:07
VLAI
Title
Authlib accepts an empty HMAC key, allowing JWS/JWT signature forgery (HS256/HS384/HS512)
Summary
Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.9.1, Authlib's OctKey.import_key() and HMAC signing and verification path accept zero-length key material. If an application's secret lookup can return an empty string or empty bytes, a remote attacker can compute the deterministic HS256, HS384, or HS512 signature for arbitrary token claims and have Authlib treat the token as authentic. This issue is fixed in version 1.9.1.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 20:07 UTC
CWE
  • CWE-287 - Improper Authentication
  • CWE-326 - Inadequate Encryption Strength
  • CWE-1391 - Use of Weak Credentials
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7868 records in the last 180 days details
Impacted products
Vendor Product Version
authlib authlib Affected: < 1.9.1
Create a notification for this product.
Show details on NVD website

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CVE-2026-113735 (GCVE-0-2026-113735)

Vulnerability from cvelistv5 – Published: 2026-10-20 23:45 – Updated: 2026-10-21 15:51
VLAI
Title
D-Link DCS-6501LH aoni_ipc mydlink_set_root_pwd weak credentials
Summary
A vulnerability was determined in D-Link DCS-6501LH 3.03.02. Affected by this vulnerability is the function mydlink_set_root_pwd of the file /mnt/mtd/aoni_ipc. Executing a manipulation can lead to use of weak credentials. The attack may be launched remotely. The attack requires a high level of complexity. The exploitation appears to be difficult. The exploit has been publicly disclosed and may be utilized.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-21 14:41 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3859 records in the last 180 days details
References
Impacted products
Vendor Product Version
D-Link DCS-6501LH Affected: 3.03.02
    cpe:2.3:h:d-link:dcs-6501lh:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-109321 (GCVE-0-2026-109321)

Vulnerability from cvelistv5 – Published: 2026-10-12 16:05 – Updated: 2026-10-18 12:13
VLAI
Title
Grav Login OAuth Plugin before 1.4.3 Predictable Local Credentials Authentication Bypass
Summary
Grav Login OAuth plugin (grav-plugin-login-oauth) before 1.4.3 provisions OAuth accounts as ordinary Grav users with a deterministic <provider>.<id> username and an unsalted MD5 hash of the provider identifier as the password, without disabling password login. Unauthenticated remote attackers who learn or guess a provider identifier can reproduce these credentials and log in, gaining administrative control of privileged accounts.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-18 12:02 UTC
CWE
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 8190 records in the last 180 days details
References
Impacted products
Vendor Product Version
getgrav grav-plugin-login-oauth Affected: 1.0.0-beta.1 , < 1.4.3 (semver)
Unaffected: 1.4.3 (semver)
Create a notification for this product.
Date Public
2026-09-23 00:00
Credits
Show details on NVD website

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CVE-2026-107828 (GCVE-0-2026-107828)

Vulnerability from cvelistv5 – Published: 2026-10-08 21:51 – Updated: 2026-10-09 14:49
VLAI
Title
Jivejdon through 5.0 Predictable Passwords via Sina Weibo OAuth Login
Summary
Jivejdon through 5.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to access Weibo-created accounts by deriving predictable credentials from public Weibo user IDs. OAuthAccountServiceImp.transferSina() sets the password to the first four digits of the Weibo ID, letting attackers log in through normal form login to read or post as victims.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 14:38 UTC
CWE
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 8190 records in the last 180 days details
Impacted products
Vendor Product Version
banq jivejdon Affected: 0 , ≤ 5.0 (custom)
Create a notification for this product.
Date Public
2026-10-08 00:00
Credits
Show details on NVD website

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CVE-2026-107153 (GCVE-0-2026-107153)

Vulnerability from cvelistv5 – Published: 2026-10-14 05:12 – Updated: 2026-10-14 16:04 Unsupported When Assigned
VLAI
Summary
Multiple smartphones provided by Rakuten Mobile, Inc. utilize AOSP test keys for their Android Verified Boot (AVB) functionality. With physical access to the affected device, a crafted system image may be installed.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 16:04 UTC
CWE
Assigner
jpcert CNA under the jpcert root
CNA scorecard C 64/100 over 186 records in the last 180 days details
Show details on NVD website

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CVE-2026-100299 (GCVE-0-2026-100299)

Vulnerability from cvelistv5 – Published: 2026-09-29 19:52 – Updated: 2026-09-29 21:01
VLAI
Title
Use of Weak Credentials in Anjvision YSSD-RTMP-H5
Summary
In Anjvision YSSD‑RTMP‑H5 firmware version 3.3.2.4, the device includes a legacy password hash on the serial console that relies on a weak DES‑based encryption.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 20:55 UTC
CWE
Assigner
icscert CNA under the icscert root
CNA scorecard B 75/100 over 343 records in the last 180 days details
References
Impacted products
Vendor Product Version
Anjvision YSSD-RTMP-H5 Affected: Version 3.3.2.4 build 2024-12-26
Create a notification for this product.
Show details on NVD website

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CVE-2026-88761 (GCVE-0-2026-88761)

Vulnerability from cvelistv5 – Published: 2026-09-24 19:55 – Updated: 2026-09-25 16:29
VLAI
Title
Botslab G980H Dashcams Use of Weak Credentials
Summary
The Botslab G980H dash camera firmware generates the default WiFi password using predictable device information, portions of which are advertised by the product. An unauthenticated attacker within WiFi range could potentially determine the remaining password characters through limited guessing and gain unauthorized access to the device network.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-25 16:28 UTC
CWE
Assigner
icscert CNA under the icscert root
CNA scorecard B 75/100 over 343 records in the last 180 days details
Impacted products
Vendor Product Version
Botslab G980H Affected: 30010_QHG980HN5294SysFW+
Affected: 58_QHG980HMCN5291SysFW+
Create a notification for this product.
Date Public
2026-09-24 14:31
Show details on NVD website

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CVE-2026-79679 (GCVE-0-2026-79679)

Vulnerability from cvelistv5 – Published: 2026-09-03 11:27 – Updated: 2026-09-03 12:10
VLAI
Title
Use of Weak Credentials
Summary
Use of Weak Credentials vulnerability in B&R Industrial Automation GmbH mapp Audit used in mapp Services. This issue affects mapp Audit used in mapp Services: before 6.8.0.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 12:09 UTC
CWE
Assigner
ABB CNA under the icscert root
CNA scorecard C 68/100 over 17 records in the last 180 days details
Impacted products
Vendor Product Version
B&R Industrial Automation GmbH mapp Services Affected: 0 , < 6.8.0 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-66409 (GCVE-0-2026-66409)

Vulnerability from cvelistv5 – Published: 2026-08-10 08:04 – Updated: 2026-08-10 18:05
VLAI
Summary
DEEBOT PRO M1 and DEEBOT PRO K1VAC are configured with weak passwords for their Wi-Fi hotspot networks. The password may be analyzed and obtained to connect to the access point of an affected robot.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 18:01 UTC
CWE
Assigner
jpcert CNA under the jpcert root
CNA scorecard C 64/100 over 186 records in the last 180 days details
Impacted products
Show details on NVD website

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Mitigation
Architecture and Design Operation

When the user changes or sets a password, check the password against a database of already compromised or breached passwords. These passwords are likely to be used in password guessing attacks.

No CAPEC attack patterns related to this CWE.