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.
905 vulnerabilities reference this CWE, most recent first.
GHSA-6W72-X59C-H2C9
Vulnerability from github – Published: 2024-04-12 18:33 – Updated: 2025-02-06 21:32An Improper Restriction of Excessive Authentication Attempts vulnerability in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a limited Denial of Service (DoS) to the management plane.
When an incoming connection was blocked because it exceeded the connections-per-second rate-limit, the system doesn't consider existing connections anymore for subsequent connection attempts so that the connection limit can be exceeded. This issue affects Junos OS Evolved:
All versions before 21.4R3-S4-EVO,
22.1-EVO versions before 22.1R3-S3-EVO,
22.2-EVO versions before 22.2R3-S2-EVO,
22.3-EVO versions before 22.3R2-S1-EVO, 22.3R3-EVO.
{
"affected": [],
"aliases": [
"CVE-2024-30390"
],
"database_specific": {
"cwe_ids": [
"CWE-307"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-12T16:15:38Z",
"severity": "MODERATE"
},
"details": "An Improper Restriction of Excessive Authentication Attempts vulnerability in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a limited\u00a0Denial of Service (DoS) to the management plane.\n\nWhen an incoming connection was blocked because it exceeded the connections-per-second rate-limit, the system doesn\u0027t consider existing connections anymore for subsequent connection attempts so that the connection\u00a0limit can be exceeded.\nThis issue affects Junos OS Evolved:\n\nAll versions before 21.4R3-S4-EVO,\n\n22.1-EVO versions before 22.1R3-S3-EVO,\n\n22.2-EVO versions before 22.2R3-S2-EVO,\u00a0\n\n22.3-EVO versions before 22.3R2-S1-EVO, 22.3R3-EVO.",
"id": "GHSA-6w72-x59c-h2c9",
"modified": "2025-02-06T21:32:05Z",
"published": "2024-04-12T18:33:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-30390"
},
{
"type": "WEB",
"url": "https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"
},
{
"type": "WEB",
"url": "http://supportportal.juniper.net/JSA79183"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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-6X8X-4QF6-W7QG
Vulnerability from github – Published: 2026-05-29 15:30 – Updated: 2026-05-29 15:30Uncontrolled resource consumption in the Wireless Control Module (WCM) of the Indian Motorcycle Scout Bobber + Tech 2025 model year allows an adjacent-network attacker with write access to the in-vehicle network to permanently immobilize the motorcycle. The WCM enforces a brute-force lockout on the immobilizer authentication algorithm, but the lockout counter is reachable by any unauthenticated message, has no session binding, and does not reset on power cycle. An attacker can deliberately trip the lockout with a small number of crafted frames, leaving the bike un-startable until dealer service. Specific thresholds have been withheld pending vendor remediation.
{
"affected": [],
"aliases": [
"CVE-2026-49324"
],
"database_specific": {
"cwe_ids": [
"CWE-307"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-29T13:16:23Z",
"severity": "MODERATE"
},
"details": "Uncontrolled resource consumption in the Wireless Control Module (WCM) of the Indian Motorcycle Scout Bobber + Tech 2025 model year allows an adjacent-network attacker with write access to the in-vehicle network to permanently immobilize the motorcycle. The WCM enforces a brute-force lockout on the immobilizer authentication algorithm, but the lockout counter is reachable by any unauthenticated message, has no session binding, and does not reset on power cycle. An attacker can deliberately trip the lockout with a small number of crafted frames, leaving the bike un-startable until dealer service. Specific thresholds have been withheld pending vendor remediation.",
"id": "GHSA-6x8x-4qf6-w7qg",
"modified": "2026-05-29T15:30:33Z",
"published": "2026-05-29T15:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49324"
},
{
"type": "WEB",
"url": "https://www.asrg.io/security-advisories/cve-2026-49324-indian-scout-wcm-bruteforce-lockout-dos"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/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-7257-Q8P3-HC2F
Vulnerability from github – Published: 2024-05-17 12:30 – Updated: 2024-05-17 12:30Improper Restriction of Excessive Authentication Attempts vulnerability in CodePeople Appointment Hour Booking allows Removing Important Client Functionality.This issue affects Appointment Hour Booking: from n/a through 1.4.56.
{
"affected": [],
"aliases": [
"CVE-2024-32720"
],
"database_specific": {
"cwe_ids": [
"CWE-307"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-17T10:15:09Z",
"severity": "MODERATE"
},
"details": "Improper Restriction of Excessive Authentication Attempts vulnerability in CodePeople Appointment Hour Booking allows Removing Important Client Functionality.This issue affects Appointment Hour Booking: from n/a through 1.4.56.",
"id": "GHSA-7257-q8p3-hc2f",
"modified": "2024-05-17T12:30:59Z",
"published": "2024-05-17T12:30:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-32720"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/vulnerability/appointment-hour-booking/wordpress-appointment-hour-booking-plugin-1-4-56-captcha-bypass-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-73CP-4XF9-C6M3
Vulnerability from github – Published: 2022-05-05 00:28 – Updated: 2024-04-03 23:54Cryptocat before 2.0.42 has Group Chat ECC Private Key Generation Brute Force Weakness
{
"affected": [],
"aliases": [
"CVE-2013-2257"
],
"database_specific": {
"cwe_ids": [
"CWE-307"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-11-04T17:15:00Z",
"severity": "HIGH"
},
"details": "Cryptocat before 2.0.42 has Group Chat ECC Private Key Generation Brute Force Weakness",
"id": "GHSA-73cp-4xf9-c6m3",
"modified": "2024-04-03T23:54:12Z",
"published": "2022-05-05T00:28:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-2257"
},
{
"type": "WEB",
"url": "https://tobtu.com/decryptocat.php"
},
{
"type": "WEB",
"url": "https://www.openwall.com/lists/oss-security/2013/07/10/15"
},
{
"type": "WEB",
"url": "https://www.securityfocus.com/bid/61087"
}
],
"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-74WF-7Q7R-HJXR
Vulnerability from github – Published: 2026-06-23 15:32 – Updated: 2026-06-23 15:32Capgo before 12.128.2 contains a credential validation vulnerability in the POST /functions/v1/private/validate_password_compliance endpoint that is callable using only the public Supabase key without authentication. The endpoint is CORS-permissive with wildcard origin allowance and lacks rate limiting, enabling attackers to perform password spraying and credential stuffing attacks to compromise user accounts.
{
"affected": [],
"aliases": [
"CVE-2026-56234"
],
"database_specific": {
"cwe_ids": [
"CWE-307"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-23T13:16:44Z",
"severity": "MODERATE"
},
"details": "Capgo before 12.128.2 contains a credential validation vulnerability in the POST /functions/v1/private/validate_password_compliance endpoint that is callable using only the public Supabase key without authentication. The endpoint is CORS-permissive with wildcard origin allowance and lacks rate limiting, enabling attackers to perform password spraying and credential stuffing attacks to compromise user accounts.",
"id": "GHSA-74wf-7q7r-hjxr",
"modified": "2026-06-23T15:32:36Z",
"published": "2026-06-23T15:32:36Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/Cap-go/capgo/security/advisories/GHSA-f6v3-xv4g-79h5"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56234"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/capgo-password-spraying-via-public-key-accessible-credential-validation-endpoint"
}
],
"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"
},
{
"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-7544-4229-C384
Vulnerability from github – Published: 2022-04-13 00:00 – Updated: 2022-04-21 00:00Dell PowerScale OneFS, versions 8.2.x-9.3.0.x, contain an improper restriction of excessive authentication attempts. An unauthenticated remote attacker could potentially exploit this vulnerability, leading to compromised accounts.
{
"affected": [],
"aliases": [
"CVE-2022-22561"
],
"database_specific": {
"cwe_ids": [
"CWE-307"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-04-12T18:15:00Z",
"severity": "CRITICAL"
},
"details": "Dell PowerScale OneFS, versions 8.2.x-9.3.0.x, contain an improper restriction of excessive authentication attempts. An unauthenticated remote attacker could potentially exploit this vulnerability, leading to compromised accounts.",
"id": "GHSA-7544-4229-c384",
"modified": "2022-04-21T00:00:49Z",
"published": "2022-04-13T00:00:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-22561"
},
{
"type": "WEB",
"url": "https://www.dell.com/support/kbdoc/000195815"
}
],
"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"
}
]
}
GHSA-75VM-HH32-424X
Vulnerability from github – Published: 2022-05-24 17:43 – Updated: 2022-07-13 00:01An issue was discovered in AdGuard before 0.105.2. An attacker able to get the user's cookie is able to bruteforce their password offline, because the hash of the password is stored in the cookie.
{
"affected": [],
"aliases": [
"CVE-2021-27935"
],
"database_specific": {
"cwe_ids": [
"CWE-307"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-03-03T20:15:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in AdGuard before 0.105.2. An attacker able to get the user\u0027s cookie is able to bruteforce their password offline, because the hash of the password is stored in the cookie.",
"id": "GHSA-75vm-hh32-424x",
"modified": "2022-07-13T00:01:14Z",
"published": "2022-05-24T17:43:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27935"
},
{
"type": "WEB",
"url": "https://github.com/AdguardTeam/AdGuardHome/issues/2470"
}
],
"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-765G-M295-5GQ4
Vulnerability from github – Published: 2026-01-23 15:31 – Updated: 2026-06-05 18:31Improper Restriction of Excessive Authentication Attempts, Weak Password Recovery Mechanism for Forgotten Password vulnerability in Birebirsoft Software and Technology Solutions Sufirmam allows Brute Force, Password Recovery Exploitation.This issue affects Sufirmam: through 23012026. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
{
"affected": [],
"aliases": [
"CVE-2025-4319"
],
"database_specific": {
"cwe_ids": [
"CWE-307"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-23T13:15:48Z",
"severity": "CRITICAL"
},
"details": "Improper Restriction of Excessive Authentication Attempts, Weak Password Recovery Mechanism for Forgotten Password vulnerability in Birebirsoft Software and Technology Solutions Sufirmam allows Brute Force, Password Recovery Exploitation.This issue affects Sufirmam: through 23012026.\u00a0NOTE: The vendor was contacted early about this disclosure but did not respond in any way.",
"id": "GHSA-765g-m295-5gq4",
"modified": "2026-06-05T18:31:31Z",
"published": "2026-01-23T15:31:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-4319"
},
{
"type": "WEB",
"url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0005"
},
{
"type": "WEB",
"url": "https://www.usom.gov.tr/bildirim/tr-26-0005"
}
],
"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:H",
"type": "CVSS_V3"
}
]
}
GHSA-769C-PHXP-JFFF
Vulnerability from github – Published: 2026-03-17 18:30 – Updated: 2026-03-23 21:30The GL-iNet Comet (GL-RM1) KVM web interface does not limit login requests, enabling brute-force attempts to guess credentials.
{
"affected": [],
"aliases": [
"CVE-2026-32292"
],
"database_specific": {
"cwe_ids": [
"CWE-307"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-17T18:16:16Z",
"severity": "CRITICAL"
},
"details": "The GL-iNet Comet (GL-RM1) KVM web interface does not limit login requests, enabling brute-force attempts to guess credentials.",
"id": "GHSA-769c-phxp-jfff",
"modified": "2026-03-23T21:30:49Z",
"published": "2026-03-17T18:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32292"
},
{
"type": "WEB",
"url": "https://dl.gl-inet.com/release/kvm/release/RM1/1.7.2"
},
{
"type": "WEB",
"url": "https://eclypsium.com/blog/your-kvm-is-the-weak-link-how-30-dollar-devices-can-own-your-entire-network"
},
{
"type": "WEB",
"url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-26-076-01.json"
},
{
"type": "WEB",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-32292"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H/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-78V5-JFG9-88WQ
Vulnerability from github – Published: 2026-05-05 12:31 – Updated: 2026-05-05 12:31OpenEMR 7.0.1 contains an authentication brute force vulnerability that allows attackers to bypass rate limiting protections by sending repeated login attempts to the main login endpoint. Attackers can submit POST requests with authUser and clearPass parameters to systematically test username and password combinations without account lockout restrictions.
{
"affected": [],
"aliases": [
"CVE-2023-54347"
],
"database_specific": {
"cwe_ids": [
"CWE-307"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-05T12:16:17Z",
"severity": "HIGH"
},
"details": "OpenEMR 7.0.1 contains an authentication brute force vulnerability that allows attackers to bypass rate limiting protections by sending repeated login attempts to the main login endpoint. Attackers can submit POST requests with authUser and clearPass parameters to systematically test username and password combinations without account lockout restrictions.",
"id": "GHSA-78v5-jfg9-88wq",
"modified": "2026-05-05T12:31:38Z",
"published": "2026-05-05T12:31:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-54347"
},
{
"type": "WEB",
"url": "https://github.com/openemr/openemr/archive/refs/tags/v7_0_1.tar.gz"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/51413"
},
{
"type": "WEB",
"url": "https://www.open-emr.org"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/openemr-authentication-brute-force-mitigation-bypass"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/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"
}
]
}
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.