CWE-307
AllowedImproper Restriction of Excessive Authentication Attempts
Abstraction: Base · Status: Draft
The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame.
1011 vulnerabilities reference this CWE, most recent first.
GHSA-69J7-838H-X496
Vulnerability from github – Published: 2022-05-24 19:03 – Updated: 2022-05-24 19:03Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device, able to conduct a successful brute-force attack on an insufficiently random AuthValue before the provisioning procedure times out, to complete authentication by leveraging Malleable Commitment.
{
"affected": [],
"aliases": [
"CVE-2020-26556"
],
"database_specific": {
"cwe_ids": [
"CWE-307"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-05-24T18:15:00Z",
"severity": "HIGH"
},
"details": "Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device, able to conduct a successful brute-force attack on an insufficiently random AuthValue before the provisioning procedure times out, to complete authentication by leveraging Malleable Commitment.",
"id": "GHSA-69j7-838h-x496",
"modified": "2022-05-24T19:03:02Z",
"published": "2022-05-24T19:03:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26556"
},
{
"type": "WEB",
"url": "https://kb.cert.org/vuls/id/799380"
},
{
"type": "WEB",
"url": "https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security"
},
{
"type": "WEB",
"url": "https://www.kb.cert.org/vuls/id/799380"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-6F83-4PFW-M3VJ
Vulnerability from github – Published: 2024-09-19 09:36 – Updated: 2024-09-26 21:31This vulnerability exists in Apex Softcell LD Geo due to missing restrictions for excessive failed authentication attempts on its API based login. A remote attacker could exploit this vulnerability by conducting a brute force attack on login OTP, which could lead to gain unauthorized access to other user accounts.
{
"affected": [],
"aliases": [
"CVE-2024-47088"
],
"database_specific": {
"cwe_ids": [
"CWE-307"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-09-19T07:15:02Z",
"severity": "CRITICAL"
},
"details": "This vulnerability exists in Apex Softcell LD Geo due to missing restrictions for excessive failed authentication attempts on its API based login. A remote attacker could exploit this vulnerability by conducting a brute force attack on login OTP, which could lead to gain unauthorized access to other user accounts.",
"id": "GHSA-6f83-4pfw-m3vj",
"modified": "2024-09-26T21:31:11Z",
"published": "2024-09-19T09:36:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-47088"
},
{
"type": "WEB",
"url": "https://www.cert-in.org.in/s2cMainServlet?pageid=PUBVLNOTES01\u0026VLCODE=CIVN-2024-0296"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-6FCV-5FMP-GWGW
Vulnerability from github – Published: 2026-09-01 15:31 – Updated: 2026-09-01 15:31CWE-307: Improper Restriction of Excessive Authentication Attempts vulnerability exists that could allow an attacker to gain unauthorized access to a user account by performing an arbitrary number of authentication attempts when redirect handling is disabled.
{
"affected": [],
"aliases": [
"CVE-2026-13348"
],
"database_specific": {
"cwe_ids": [
"CWE-307"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-01T14:17:24Z",
"severity": "MODERATE"
},
"details": "CWE-307: Improper Restriction of Excessive Authentication Attempts vulnerability exists that could allow an attacker to gain unauthorized access to a user account by performing an arbitrary number of authentication attempts when redirect handling is disabled.",
"id": "GHSA-6fcv-5fmp-gwgw",
"modified": "2026-09-01T15:31:12Z",
"published": "2026-09-01T15:31:12Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13348"
},
{
"type": "WEB",
"url": "https://download.se.com/files?p_Doc_Ref=SEVD-2026-223-01\u0026p_enDocType=Security+and+Safety+Notice\u0026p_File_Name=SEVD-2026-223-01.pdf"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-6G2F-5J4G-W6F4
Vulnerability from github – Published: 2026-05-07 09:31 – Updated: 2026-05-07 09:31Improper restriction of excessive authentication attempts vulnerability in Hitachi Virtual Storage Platform G130, G150, G350, G370, G700, G900, F350, F370, F700, F900, Hitachi Virtual Storage Platform E390, E590, E790, E990, E1090, E390H, E590H, E790H, E1090H, Hitachi Virtual Storage Platform One Block 23, One Block 24, One Block 26, One Block 28.
This issue affects Hitachi Virtual Storage Platform G130, G150, G350, G370, G700, G900, F350, F370, F700, F900, Hitachi Virtual Storage Platform E390, E590, E790, E990, E1090, E390H, E590H, E790H, E1090H, Hitachi Virtual Storage Platform One Block 23, One Block 24, One Block 26, One Block 28 : before DKCMAIN Ver 88-08-16-xx/00, GUM Ver. 88-08-20/00, before DKCMAIN Ver 93-07-26-xx/00, GUM Ver. 93-07-26/00, before DKCMAIN Ver A3-04-02-xx/00, EMS Ver. A3-04-02/00, before DKCMAIN Ver A3-03-41-xx/00, EMS Ver. A3-03-41/00, before DKCMAIN Ver A3-03-03-xx/00, EMS Ver. A3-03-02/00.
{
"affected": [],
"aliases": [
"CVE-2025-2514"
],
"database_specific": {
"cwe_ids": [
"CWE-307"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-07T09:16:26Z",
"severity": "MODERATE"
},
"details": "Improper restriction of excessive authentication attempts vulnerability in Hitachi Virtual Storage Platform G130, G150, G350, G370, G700, G900, F350, F370, F700, F900, Hitachi Virtual Storage Platform E390, E590, E790, E990, E1090, E390H, E590H, E790H, E1090H, Hitachi Virtual Storage Platform One Block 23, One Block 24, One Block 26, One Block 28.\n\nThis issue affects Hitachi Virtual Storage Platform G130, G150, G350, G370, G700, G900, F350, F370, F700, F900,\u00a0Hitachi Virtual Storage Platform E390, E590, E790, E990, E1090, E390H, E590H, E790H, E1090H, Hitachi Virtual Storage Platform One Block 23, One Block 24, One Block 26, One Block 28\u00a0 : before DKCMAIN Ver 88-08-16-xx/00, GUM Ver. 88-08-20/00, before DKCMAIN Ver 93-07-26-xx/00, GUM Ver. 93-07-26/00, before DKCMAIN Ver A3-04-02-xx/00, EMS Ver. A3-04-02/00, before DKCMAIN Ver A3-03-41-xx/00, EMS Ver. A3-03-41/00, before DKCMAIN Ver A3-03-03-xx/00, EMS Ver. A3-03-02/00.",
"id": "GHSA-6g2f-5j4g-w6f4",
"modified": "2026-05-07T09:31:27Z",
"published": "2026-05-07T09:31:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-2514"
},
{
"type": "WEB",
"url": "https://www.hitachi.com/products/it/storage-solutions/sec_info/2026/2026_306.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-6GPJ-QPM5-7XW2
Vulnerability from github – Published: 2025-05-20 18:30 – Updated: 2025-05-20 18:30Password guessing limits could be bypassed when using LDAP authentication.
{
"affected": [],
"aliases": [
"CVE-2025-48014"
],
"database_specific": {
"cwe_ids": [
"CWE-307"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-20T16:15:35Z",
"severity": "HIGH"
},
"details": "Password guessing limits could be bypassed when using LDAP authentication.",
"id": "GHSA-6gpj-qpm5-7xw2",
"modified": "2025-05-20T18:30:57Z",
"published": "2025-05-20T18:30:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-48014"
},
{
"type": "WEB",
"url": "https://selinc.com/products/software/latest-software-versions"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-6J4R-889X-2CQF
Vulnerability from github – Published: 2025-09-02 15:31 – Updated: 2026-06-06 09:31Improper Restriction of Excessive Authentication Attempts vulnerability in Akinsoft ProKuafor allows Authentication Bypass.This issue affects ProKuafor: from s1.02.08 before v1.02.08.
{
"affected": [],
"aliases": [
"CVE-2025-2413"
],
"database_specific": {
"cwe_ids": [
"CWE-307"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-02T14:15:34Z",
"severity": "HIGH"
},
"details": "Improper Restriction of Excessive Authentication Attempts vulnerability in Akinsoft ProKuafor allows Authentication Bypass.This issue affects ProKuafor: from s1.02.08 before v1.02.08.",
"id": "GHSA-6j4r-889x-2cqf",
"modified": "2026-06-06T09:31:13Z",
"published": "2025-09-02T15:31:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-2413"
},
{
"type": "WEB",
"url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-25-0204"
},
{
"type": "WEB",
"url": "https://www.usom.gov.tr/bildirim/tr-25-0204"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-6J5C-GC78-PQGR
Vulnerability from github – Published: 2025-10-20 15:30 – Updated: 2025-10-20 18:30A lack of rate limiting in the One-Time Password (OTP) verification endpoint of SigningHub v8.6.8 allows attackers to bypass verification via a bruteforce attack.
{
"affected": [],
"aliases": [
"CVE-2025-56224"
],
"database_specific": {
"cwe_ids": [
"CWE-305",
"CWE-307"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-20T13:15:44Z",
"severity": "MODERATE"
},
"details": "A lack of rate limiting in the One-Time Password (OTP) verification endpoint of SigningHub v8.6.8 allows attackers to bypass verification via a bruteforce attack.",
"id": "GHSA-6j5c-gc78-pqgr",
"modified": "2025-10-20T18:30:32Z",
"published": "2025-10-20T15:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-56224"
},
{
"type": "WEB",
"url": "https://github.com/saykino/CVE-2025-56224"
},
{
"type": "WEB",
"url": "http://ascertia.com"
},
{
"type": "WEB",
"url": "http://signinghub.com"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-6JC4-3X8F-XP5R
Vulnerability from github – Published: 2025-12-04 21:31 – Updated: 2025-12-04 21:31Medtronic CareLink Network allows an unauthenticated remote attacker to perform a brute force attack on an API endpoint that could be used to determine a valid password under certain circumstances. This issue affects CareLink Network: before December 4, 2025.
{
"affected": [],
"aliases": [
"CVE-2025-12995"
],
"database_specific": {
"cwe_ids": [
"CWE-307"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-04T20:16:17Z",
"severity": "HIGH"
},
"details": "Medtronic CareLink Network allows an unauthenticated remote attacker to perform a brute force attack on an API endpoint that could be used to determine a valid password under certain circumstances. This issue affects CareLink Network: before December 4, 2025.",
"id": "GHSA-6jc4-3x8f-xp5r",
"modified": "2025-12-04T21:31:05Z",
"published": "2025-12-04T21:31:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-12995"
},
{
"type": "WEB",
"url": "https://www.medtronic.com/en-us/e/product-security/security-bulletins/carelink-network-vulnerabilities.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-6M89-WC57-W677
Vulnerability from github – Published: 2026-09-03 18:31 – Updated: 2026-09-11 15:32A vulnerability in MISP's email-based one-time password (OTP) authentication flow allowed an attacker to perform an unrestricted number of OTP verification attempts.
The email_otp() endpoint did not apply brute-force protection when validating submitted OTP values. An attacker who had reached the OTP verification stage, for example after successfully providing a user's primary authentication credentials, could repeatedly submit candidate OTP values while the same OTP remained valid. This significantly increased the feasibility of guessing the OTP and bypassing the additional authentication factor, potentially resulting in unauthorized access to the affected user's account.
The issue was exacerbated by the fact that the OTP is associated with the user rather than with an individual pending login session, allowing multiple concurrent sessions to attempt guesses against the same valid OTP.
The patch integrates the existing MISP brute-force protection mechanism into the email OTP flow. Failed OTP attempts are now counted against the user, further attempts are rejected once the configured threshold is reached, and the active OTP is invalidated when the attempt budget is exhausted. Blocklisted users are also prevented from requesting the generation of a fresh OTP. In addition, OTP comparison now uses hash_equals() and validates that the submitted value is a string.
{
"affected": [],
"aliases": [
"CVE-2026-85237"
],
"database_specific": {
"cwe_ids": [
"CWE-307"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-03T16:18:27Z",
"severity": "HIGH"
},
"details": "A vulnerability in MISP\u0027s email-based one-time password (OTP) authentication flow allowed an attacker to perform an unrestricted number of OTP verification attempts.\n\n\nThe email_otp() endpoint did not apply brute-force protection when validating submitted OTP values. An attacker who had reached the OTP verification stage, for example after successfully providing a user\u0027s primary authentication credentials, could repeatedly submit candidate OTP values while the same OTP remained valid. This significantly increased the feasibility of guessing the OTP and bypassing the additional authentication factor, potentially resulting in unauthorized access to the affected user\u0027s account.\n\n\nThe issue was exacerbated by the fact that the OTP is associated with the user rather than with an individual pending login session, allowing multiple concurrent sessions to attempt guesses against the same valid OTP.\n\n\nThe patch integrates the existing MISP brute-force protection mechanism into the email OTP flow. Failed OTP attempts are now counted against the user, further attempts are rejected once the configured threshold is reached, and the active OTP is invalidated when the attempt budget is exhausted. Blocklisted users are also prevented from requesting the generation of a fresh OTP. In addition, OTP comparison now uses hash_equals() and validates that the submitted value is a string.",
"id": "GHSA-6m89-wc57-w677",
"modified": "2026-09-11T15:32:26Z",
"published": "2026-09-03T18:31:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-85237"
},
{
"type": "WEB",
"url": "https://github.com/MISP/MISP/commit/8658062ea"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-6MG4-M676-RM67
Vulnerability from github – Published: 2024-11-26 03:36 – Updated: 2024-11-26 03:36Dell Wyse Management Suite, versions WMS 4.4 and prior, contain an Improper Restriction of Excessive Authentication Attempts vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Protection mechanism bypass.
{
"affected": [],
"aliases": [
"CVE-2024-49597"
],
"database_specific": {
"cwe_ids": [
"CWE-307"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-26T03:15:06Z",
"severity": "HIGH"
},
"details": "Dell Wyse Management Suite, versions WMS 4.4 and prior, contain an Improper Restriction of Excessive Authentication Attempts vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Protection mechanism bypass.",
"id": "GHSA-6mg4-m676-rm67",
"modified": "2024-11-26T03:36:39Z",
"published": "2024-11-26T03:36:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49597"
},
{
"type": "WEB",
"url": "https://www.dell.com/support/kbdoc/en-us/000244453/dsa-2024-440"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:L",
"type": "CVSS_V3"
}
]
}
Mitigation
- Common protection mechanisms include:
- Disconnecting the user after a small number of failed attempts
- Implementing a timeout
- Locking out a targeted account
- Requiring a computational task on the user's part.
Mitigation MIT-4
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].
- Consider using libraries with authentication capabilities such as OpenSSL or the ESAPI Authenticator. [REF-45]
CAPEC-16: Dictionary-based Password Attack
An attacker tries each of the words in a dictionary as passwords to gain access to the system via some user's account. If the password chosen by the user was a word within the dictionary, this attack will be successful (in the absence of other mitigations). This is a specific instance of the password brute forcing attack pattern.
Dictionary Attacks differ from similar attacks such as Password Spraying (CAPEC-565) and Credential Stuffing (CAPEC-600), since they leverage unknown username/password combinations and don't care about inducing account lockouts.
CAPEC-49: Password Brute Forcing
An adversary tries every possible value for a password until they succeed. A brute force attack, if feasible computationally, will always be successful because it will essentially go through all possible passwords given the alphabet used (lower case letters, upper case letters, numbers, symbols, etc.) and the maximum length of the password.
CAPEC-560: Use of Known Domain Credentials
An adversary guesses or obtains (i.e. steals or purchases) legitimate credentials (e.g. userID/password) to achieve authentication and to perform authorized actions under the guise of an authenticated user or service.
CAPEC-565: Password Spraying
In a Password Spraying attack, an adversary tries a small list (e.g. 3-5) of common or expected passwords, often matching the target's complexity policy, against a known list of user accounts to gain valid credentials. The adversary tries a particular password for each user account, before moving onto the next password in the list. This approach assists the adversary in remaining undetected by avoiding rapid or frequent account lockouts. The adversary may then reattempt the process with additional passwords, once enough time has passed to prevent inducing a lockout.
CAPEC-600: Credential Stuffing
An adversary tries known username/password combinations against different systems, applications, or services to gain additional authenticated access. Credential Stuffing attacks rely upon the fact that many users leverage the same username/password combination for multiple systems, applications, and services.
CAPEC-652: Use of Known Kerberos Credentials
An adversary obtains (i.e. steals or purchases) legitimate Kerberos credentials (e.g. Kerberos service account userID/password or Kerberos Tickets) with the goal of achieving authenticated access to additional systems, applications, or services within the domain.
CAPEC-653: Use of Known Operating System Credentials
An adversary guesses or obtains (i.e. steals or purchases) legitimate operating system credentials (e.g. userID/password) to achieve authentication and to perform authorized actions on the system, under the guise of an authenticated user or service. This applies to any Operating System.