Common Weakness Enumeration

CWE-457

Allowed

Use of Uninitialized Variable

Abstraction: Variant · Status: Draft

API response cwe.mitre.org

The code uses a variable that has not been initialized, leading to unpredictable or unintended results.

298 vulnerabilities reference this CWE, most recent first.

CVE-2019-1010319 (GCVE-0-2019-1010319)

Vulnerability from cvelistv5 – Published: 2019-07-11 19:23 – Updated: 2024-08-05 03:14
VLAI
Summary
WavPack 5.1.0 and earlier is affected by: CWE-457: Use of Uninitialized Variable. The impact is: Unexpected control flow, crashes, and segfaults. The component is: ParseWave64HeaderConfig (wave64.c:211). The attack vector is: Maliciously crafted .wav file. The fixed version is: After commit https://github.com/dbry/WavPack/commit/33a0025d1d63ccd05d9dbaa6923d52b1446a62fe.
Severity
No CVSS data available.
CWE
  • CWE-457 - Use of Uninitialized Variable
Assigner
dwf
References
Impacted products
Vendor Product Version
WavPack WavPack Affected: <=5.1.0 [fixed: After commit https://github.com/dbry/WavPack/commit/33a0025d1d63ccd05d9dbaa6923d52b1446a62fe]
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CVE-2019-1010317 (GCVE-0-2019-1010317)

Vulnerability from cvelistv5 – Published: 2019-07-11 19:24 – Updated: 2024-08-05 03:07
VLAI
Summary
WavPack 5.1.0 and earlier is affected by: CWE-457: Use of Uninitialized Variable. The impact is: Unexpected control flow, crashes, and segfaults. The component is: ParseCaffHeaderConfig (caff.c:486). The attack vector is: Maliciously crafted .wav file. The fixed version is: After commit https://github.com/dbry/WavPack/commit/f68a9555b548306c5b1ee45199ccdc4a16a6101b.
Severity
No CVSS data available.
CWE
  • CWE-457 - Use of Uninitialized Variable
Assigner
dwf
References
Impacted products
Vendor Product Version
WavPack WavPack Affected: 5.1.0 and earlier [fixed: After commit https://github.com/dbry/WavPack/commit/f68a9555b548306c5b1ee45199ccdc4a16a6101b]
Create a notification for this product.
Show details on NVD website
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CVE-2019-11038 (GCVE-0-2019-11038)

Vulnerability from cvelistv5 – Published: 2019-06-18 23:28 – Updated: 2024-09-16 21:04
VLAI
Title
Uninitialized read in gdImageCreateFromXbm
Summary
When using the gdImageCreateFromXbm() function in the GD Graphics Library (aka LibGD) 2.2.5, as used in the PHP GD extension in PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x below 7.3.6, it is possible to supply data that will cause the function to use the value of uninitialized variable. This may lead to disclosing contents of the stack that has been left there by previous code.
Severity
3.1 (Low)
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
CWE
  • CWE-457 - Use of Uninitialized Variable
Assigner
php
References
Impacted products
Vendor Product Version
PHP Group PHP Affected: 7.1.x < 7.1.30
Affected: 7.2.x < 7.2.19
Affected: 7.3.x < 7.3.6
Create a notification for this product.
Date Public
2019-05-28 00:00
Credits
By chamal dot desilva at gmail dot com
Show details on NVD website
To clipboard 

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GHSA-22FQ-GXHW-M8H5

Vulnerability from github – Published: 2025-04-08 18:34 – Updated: 2025-07-14 21:31
VLAI
Details

A local code execution vulnerability exists in the Rockwell Automation Arena®  due to an uninitialized pointer. The flaw is result of improper validation of user-supplied data. If exploited a threat actor can disclose information and execute arbitrary code on the system. To exploit the vulnerability a legitimate user must open a malicious DOE file.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.5 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Show details on source website
To clipboard 

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  "aliases": [
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  ],
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      "CWE-824"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-08T16:15:26Z",
    "severity": "HIGH"
  },
  "details": "A local code execution vulnerability exists in the Rockwell Automation\u00a0Arena\u00ae \u00a0due to an uninitialized pointer. The flaw is result of improper validation of user-supplied data.  If exploited a threat actor can disclose information and execute arbitrary code on the system. To exploit the vulnerability a legitimate user must open a malicious DOE file.",
  "id": "GHSA-22fq-gxhw-m8h5",
  "modified": "2025-07-14T21:31:43Z",
  "published": "2025-04-08T18:34:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-2286"
    },
    {
      "type": "WEB",
      "url": "https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1726.html"
    }
  ],
  "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"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/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-235Q-27Q4-67JX

Vulnerability from github – Published: 2025-07-10 21:31 – Updated: 2025-07-10 21:31
VLAI
Details

The Honeywell Experion PKS contains an Uninitialized Variable in the common Epic Platform Analyzer (EPA) communications. An attacker could potentially exploit this vulnerability, leading to a Communication Channel Manipulation, which results in a dereferencing of an uninitialized pointer leading to a denial of service.

Honeywell recommends updating to the most recent version of

Honeywell Experion PKS: 520.2 TCU9 HF1and 530.1 TCU3 HF1. The affected Experion PKS products are

C300 PCNT02, EHB, EHPM, ELMM, Classic ENIM, ETN, FIM4, FIM8, PGM, and RFIM. The Experion PKS versions affected are from 520.1 through 520.2 TCU9 and from 530 through 530 TCU3.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-2520"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-457"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-10T20:15:24Z",
    "severity": "HIGH"
  },
  "details": "The Honeywell Experion PKS contains an Uninitialized Variable in the common Epic Platform Analyzer (EPA) communications. An attacker could potentially exploit this vulnerability, leading to a Communication Channel Manipulation, which results in a dereferencing of an uninitialized pointer leading to a denial of service.\n\n\n\nHoneywell recommends updating to the most recent version of \n\nHoneywell Experion PKS: 520.2 TCU9 HF1and\u00a0530.1 TCU3 HF1.\u00a0The affected Experion PKS products are \n\nC300 PCNT02, EHB, EHPM, ELMM, Classic ENIM, ETN, FIM4, FIM8, PGM, and RFIM.  The Experion PKS versions affected are\u00a0from 520.1 through 520.2 TCU9 and from 530 through 530 TCU3.",
  "id": "GHSA-235q-27q4-67jx",
  "modified": "2025-07-10T21:31:53Z",
  "published": "2025-07-10T21:31:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-2520"
    },
    {
      "type": "WEB",
      "url": "https://process.honeywell.com"
    }
  ],
  "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:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-24H4-9R9X-FC93

Vulnerability from github – Published: 2026-07-09 00:31 – Updated: 2026-07-09 00:31
VLAI
Details

BLF file parser in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows possible information disclosure

Severity
2.5 (Low)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-15168"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-457"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-08T22:17:13Z",
    "severity": "LOW"
  },
  "details": "BLF file parser in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows possible information disclosure",
  "id": "GHSA-24h4-9r9x-fc93",
  "modified": "2026-07-09T00:31:14Z",
  "published": "2026-07-09T00:31:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-15168"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/wireshark/wireshark/-/work_items/21361"
    },
    {
      "type": "WEB",
      "url": "https://www.wireshark.org/security/wnpa-sec-2026-60.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-25XW-CF43-5CCV

Vulnerability from github – Published: 2026-07-14 21:32 – Updated: 2026-07-14 21:32
VLAI
Details

Uninitialized Use in V8 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)

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-15770"
  ],
  "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 V8 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-25xw-cf43-5ccv",
  "modified": "2026-07-14T21:32:21Z",
  "published": "2026-07-14T21:32:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-15770"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0353146366.html"
    },
    {
      "type": "WEB",
      "url": "https://issues.chromium.org/issues/524792614"
    }
  ],
  "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-29VJ-J5W5-PCPH

Vulnerability from github – Published: 2025-06-17 15:31 – Updated: 2025-10-22 00:33
VLAI
Details

Insufficient input validation leading to memory overread on the NetScaler Management Interface NetScaler ADC and NetScaler Gateway

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-5777"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125",
      "CWE-457",
      "CWE-908"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-17T13:15:21Z",
    "severity": "CRITICAL"
  },
  "details": "Insufficient input validation leading to memory overread\u00a0on the NetScaler Management Interface\u00a0NetScaler ADC\u202fand NetScaler Gateway",
  "id": "GHSA-29vj-j5w5-pcph",
  "modified": "2025-10-22T00:33:18Z",
  "published": "2025-06-17T15:31:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-5777"
    },
    {
      "type": "WEB",
      "url": "https://citrixbleed.com"
    },
    {
      "type": "WEB",
      "url": "https://doublepulsar.com/citrixbleed-2-exploitation-started-mid-june-how-to-spot-it-f3106392aa71"
    },
    {
      "type": "WEB",
      "url": "https://horizon3.ai/attack-research/attack-blogs/cve-2025-5777-citrixbleed-2-write-up-maybe"
    },
    {
      "type": "WEB",
      "url": "https://labs.watchtowr.com/how-much-more-must-we-bleed-citrix-netscaler-memory-disclosure-citrixbleed-2-cve-2025-5777"
    },
    {
      "type": "WEB",
      "url": "https://reliaquest.com/blog/threat-spotlight-citrix-bleed-2-vulnerability-in-netscaler-adc-gateway-devices"
    },
    {
      "type": "WEB",
      "url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX693420"
    },
    {
      "type": "WEB",
      "url": "https://www.bleepingcomputer.com/news/security/cisa-tags-citrix-bleed-2-as-exploited-gives-agencies-a-day-to-patch"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-5777"
    },
    {
      "type": "WEB",
      "url": "https://www.netscaler.com/blog/news/netscaler-critical-security-updates-for-cve-2025-6543-and-cve-2025-5777"
    },
    {
      "type": "WEB",
      "url": "https://www.theregister.com/2025/07/10/cisa_citrixbleed_kev"
    }
  ],
  "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:H/VA:H/SC:L/SI:L/SA:L/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-2C8F-3Q8J-HH53

Vulnerability from github – Published: 2026-05-29 00:38 – Updated: 2026-05-29 18:31
VLAI
Details

Uninitialized Use in WebGL in Google Chrome on Android prior to 148.0.7778.216 allowed a remote attacker to leak cross-origin information via a crafted HTML page. (Chromium security severity: High)

Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-9921"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-457"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-28T23:16:50Z",
    "severity": "MODERATE"
  },
  "details": "Uninitialized Use in WebGL in Google Chrome on Android prior to 148.0.7778.216 allowed a remote attacker to leak cross-origin information via a crafted HTML page. (Chromium security severity: High)",
  "id": "GHSA-2c8f-3q8j-hh53",
  "modified": "2026-05-29T18:31:24Z",
  "published": "2026-05-29T00:38:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9921"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html"
    },
    {
      "type": "WEB",
      "url": "https://issues.chromium.org/issues/500150338"
    }
  ],
  "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-2H7H-74R2-6CR3

Vulnerability from github – Published: 2026-05-29 00:38 – Updated: 2026-05-29 18:31
VLAI
Details

Uninitialized Use in WebGL in Google Chrome on Android prior to 148.0.7778.216 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-9917"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-457"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-28T23:16:49Z",
    "severity": "MODERATE"
  },
  "details": "Uninitialized Use in WebGL in Google Chrome on Android prior to 148.0.7778.216 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)",
  "id": "GHSA-2h7h-74r2-6cr3",
  "modified": "2026-05-29T18:31:24Z",
  "published": "2026-05-29T00:38:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9917"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html"
    },
    {
      "type": "WEB",
      "url": "https://issues.chromium.org/issues/500095304"
    }
  ],
  "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
Implementation

Strategy: Attack Surface Reduction

Ensure that critical variables are initialized before first use [REF-1485].

Mitigation
Build and Compilation

Strategy: Compilation or Build Hardening

Most compilers will complain about the use of uninitialized variables if warnings are turned on.

Mitigation
Implementation Operation

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
Requirements

Strategy: Language Selection

Choose a language that is not susceptible to these issues.

Mitigation
Architecture and Design

Mitigating technologies such as safe string libraries and container abstractions could be introduced.

No CAPEC attack patterns related to this CWE.

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