CWE-457
AllowedUse of Uninitialized Variable
Abstraction: Variant · Status: Draft
The code uses a variable that has not been initialized, leading to unpredictable or unintended results.
298 vulnerabilities reference this CWE, most recent first.
GHSA-JC9W-Q838-488C
Vulnerability from github – Published: 2026-06-05 00:31 – Updated: 2026-06-05 18:31Uninitialized Use in ANGLE in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
{
"affected": [],
"aliases": [
"CVE-2026-11090"
],
"database_specific": {
"cwe_ids": [
"CWE-125",
"CWE-457"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-04T23:17:13Z",
"severity": "MODERATE"
},
"details": "Uninitialized Use in ANGLE in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)",
"id": "GHSA-jc9w-q838-488c",
"modified": "2026-06-05T18:31:35Z",
"published": "2026-06-05T00:31:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-11090"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/500161302"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-JCP9-WRQQ-GG3H
Vulnerability from github – Published: 2024-09-24 00:31 – Updated: 2024-09-25 21:30Uninitialized Use in V8 in Google Chrome prior to 123.0.6312.58 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page. (Chromium security severity: Medium)
{
"affected": [],
"aliases": [
"CVE-2024-7022"
],
"database_specific": {
"cwe_ids": [
"CWE-457",
"CWE-908"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-09-23T22:15:03Z",
"severity": "HIGH"
},
"details": "Uninitialized Use in V8 in Google Chrome prior to 123.0.6312.58 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page. (Chromium security severity: Medium)",
"id": "GHSA-jcp9-wrqq-gg3h",
"modified": "2024-09-25T21:30:34Z",
"published": "2024-09-24T00:31:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-7022"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/324690505"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-JQQC-VV26-H55V
Vulnerability from github – Published: 2023-10-12 18:30 – Updated: 2025-11-04 21:30An information disclosure vulnerability exists in the ClientConnect() functionality of SoftEther VPN 5.01.9674. A specially crafted network packet can lead to a disclosure of sensitive information. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.
{
"affected": [],
"aliases": [
"CVE-2023-31192"
],
"database_specific": {
"cwe_ids": [
"CWE-457",
"CWE-908"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-10-12T16:15:11Z",
"severity": "MODERATE"
},
"details": "An information disclosure vulnerability exists in the ClientConnect() functionality of SoftEther VPN 5.01.9674. A specially crafted network packet can lead to a disclosure of sensitive information. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.",
"id": "GHSA-jqqc-vv26-h55v",
"modified": "2025-11-04T21:30:44Z",
"published": "2023-10-12T18:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-31192"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1768"
},
{
"type": "WEB",
"url": "https://www.softether.org/9-about/News/904-SEVPN202301"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1768"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-JVCH-X2XH-P75V
Vulnerability from github – Published: 2026-04-09 00:32 – Updated: 2026-04-13 21:30Uninitialized Use in WebCodecs in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Medium)
{
"affected": [],
"aliases": [
"CVE-2026-5888"
],
"database_specific": {
"cwe_ids": [
"CWE-457"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-08T22:16:28Z",
"severity": "MODERATE"
},
"details": "Uninitialized Use in WebCodecs in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Medium)",
"id": "GHSA-jvch-x2xh-p75v",
"modified": "2026-04-13T21:30:37Z",
"published": "2026-04-09T00:32:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5888"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/486506202"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-JVGW-WCF7-8QHM
Vulnerability from github – Published: 2023-03-29 21:30 – Updated: 2023-04-05 15:30This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.02.34. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of IFC files. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-16369.
{
"affected": [],
"aliases": [
"CVE-2022-28317"
],
"database_specific": {
"cwe_ids": [
"CWE-457"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-29T19:15:00Z",
"severity": "HIGH"
},
"details": "This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.02.34. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of IFC files. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-16369.",
"id": "GHSA-jvgw-wcf7-8qhm",
"modified": "2023-04-05T15:30:23Z",
"published": "2023-03-29T21:30:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-28317"
},
{
"type": "WEB",
"url": "https://www.bentley.com/en/common-vulnerability-exposure/be-2022-0006"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-22-604"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-M37R-5C69-PV9V
Vulnerability from github – Published: 2026-05-29 00:38 – Updated: 2026-05-29 18:31Uninitialized Use in ANGLE in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)
{
"affected": [],
"aliases": [
"CVE-2026-9935"
],
"database_specific": {
"cwe_ids": [
"CWE-457"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-28T23:16:51Z",
"severity": "MODERATE"
},
"details": "Uninitialized Use in ANGLE in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-m37r-5c69-pv9v",
"modified": "2026-05-29T18:31:25Z",
"published": "2026-05-29T00:38:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9935"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/501584689"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-M673-QG9W-P8MH
Vulnerability from github – Published: 2025-06-18 18:30 – Updated: 2025-06-18 18:30A vulnerability in the Cisco AnyConnect VPN server of Cisco Meraki MX and Cisco Meraki Z Series Teleworker Gateway devices could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition in the Cisco AnyConnect service on an affected device.
This vulnerability is due to variable initialization errors when an SSL VPN session is established. An attacker could exploit this vulnerability by sending a sequence of crafted HTTPS requests to an affected device. A successful exploit could allow the attacker to cause the Cisco AnyConnect VPN server to restart, resulting in the failure of all established SSL VPN sessions and forcing remote users to initiate a new VPN connection and re-authenticate. A sustained attack could prevent new SSL VPN connections from being established, effectively making the Cisco AnyConnect VPN service unavailable for all legitimate users.
{
"affected": [],
"aliases": [
"CVE-2025-20271"
],
"database_specific": {
"cwe_ids": [
"CWE-457"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-18T17:15:29Z",
"severity": "HIGH"
},
"details": "A vulnerability in the Cisco AnyConnect VPN server of Cisco Meraki MX and Cisco Meraki Z Series Teleworker Gateway devices could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition in the Cisco AnyConnect service on an affected device.\n\nThis vulnerability is due to\u0026nbsp;variable initialization errors when an SSL VPN session is established. An attacker could exploit this vulnerability by sending a sequence of crafted HTTPS requests to an affected device. A successful exploit could allow the attacker to cause the Cisco AnyConnect VPN server to restart, resulting in the failure of all established SSL VPN sessions and forcing remote users to initiate a new VPN connection and re-authenticate. A sustained attack could prevent new SSL VPN connections from being established, effectively making the Cisco AnyConnect VPN service unavailable for all legitimate users.",
"id": "GHSA-m673-qg9w-p8mh",
"modified": "2025-06-18T18:30:33Z",
"published": "2025-06-18T18:30:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-20271"
},
{
"type": "WEB",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-meraki-mx-vpn-dos-sM5GCfm7"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-M6RF-VJJX-JV33
Vulnerability from github – Published: 2023-04-13 09:30 – Updated: 2024-04-04 03:26Information disclosure in modem due to missing NULL check while reading packets received from local network
{
"affected": [],
"aliases": [
"CVE-2022-25737"
],
"database_specific": {
"cwe_ids": [
"CWE-457",
"CWE-908"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-04-13T07:15:00Z",
"severity": "HIGH"
},
"details": "Information disclosure in modem due to missing NULL check while reading packets received from local network",
"id": "GHSA-m6rf-vjjx-jv33",
"modified": "2024-04-04T03:26:57Z",
"published": "2023-04-13T09:30:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-25737"
},
{
"type": "WEB",
"url": "https://www.qualcomm.com/company/product-security/bulletins/april-2023-bulletin"
}
],
"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-M6W7-672M-RG27
Vulnerability from github – Published: 2026-07-01 00:34 – Updated: 2026-07-01 03:35Uninitialized Use in Codecs in Google Chrome on Windows prior to 150.0.7871.47 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Medium)
{
"affected": [],
"aliases": [
"CVE-2026-14010"
],
"database_specific": {
"cwe_ids": [
"CWE-457"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-30T23:17:13Z",
"severity": "MODERATE"
},
"details": "Uninitialized Use in Codecs in Google Chrome on Windows prior to 150.0.7871.47 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Medium)",
"id": "GHSA-m6w7-672m-rg27",
"modified": "2026-07-01T03:35:23Z",
"published": "2026-07-01T00:34:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14010"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/516924151"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-MC7H-7X47-9J48
Vulnerability from github – Published: 2026-07-14 21:32 – Updated: 2026-07-14 21:32Uninitialized Use in Skia in Google Chrome prior to 150.0.7871.125 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)
{
"affected": [],
"aliases": [
"CVE-2026-15766"
],
"database_specific": {
"cwe_ids": [
"CWE-457"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T21:16:42Z",
"severity": "MODERATE"
},
"details": "Uninitialized Use in Skia in Google Chrome prior to 150.0.7871.125 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-mc7h-7x47-9j48",
"modified": "2026-07-14T21:32:20Z",
"published": "2026-07-14T21:32:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-15766"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0353146366.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/514010477"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
Mitigation MIT-57
Strategy: Attack Surface Reduction
Ensure that critical variables are initialized before first use [REF-1485].
Mitigation
Strategy: Compilation or Build Hardening
Most compilers will complain about the use of uninitialized variables if warnings are turned on.
Mitigation
When using a language that does not require explicit declaration of variables, run or compile the software in a mode that reports undeclared or unknown variables. This may indicate the presence of a typographic error in the variable's name.
Mitigation
Strategy: Language Selection
Choose a language that is not susceptible to these issues.
Mitigation
Mitigating technologies such as safe string libraries and container abstractions could be introduced.
No CAPEC attack patterns related to this CWE.