Common Weakness Enumeration
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.
343 vulnerabilities reference this CWE, most recent first.
CVE-2019-11038 (GCVE-0-2019-11038)
Vulnerability from cvelistv5 – Published: 2019-06-18 23:28 – Updated: 2024-09-16 21:04
VLAI
EPSS
VEX
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
CWE
- CWE-457 - Use of Uninitialized Variable
Assigner
References
18 references
Impacted products
Date Public
2019-05-28 00:00
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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
{
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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": [
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"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"
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"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",
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}
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)
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"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
{
"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)
{
"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-28W7-PG33-G2HJ
Vulnerability from github – Published: 2026-09-15 15:32 – Updated: 2026-09-15 15:32
VLAI
Details
OpenBMC's IPMI implementation, phosphor-net-ipmid, contains a logic flaw in which an unauthenticated client can force the RAKP Message 1 handler to return before it overwrites the authentication object's constructor defaults. The IPMI service then accepts a RAKP Message 3 whose HMAC is computed with the constant 20-byte 'userKey' initialized from the string '0penBmc' and an often-predictable 'bmcRandomNum'. Several downstream vendors implement phosphor-net-ipmid as their IPMI stack, such as NVIDIA and H3C.
Severity
8.1 (High)
{
"affected": [],
"aliases": [
"CVE-2026-16141"
],
"database_specific": {
"cwe_ids": [
"CWE-457"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-15T14:16:50Z",
"severity": "HIGH"
},
"details": "OpenBMC\u0027s IPMI implementation, phosphor-net-ipmid, contains a logic flaw in which an unauthenticated client can force the RAKP Message 1 handler to return before it overwrites the authentication object\u0027s constructor defaults. The IPMI service then accepts a RAKP Message 3 whose HMAC is computed with the constant 20-byte \u0027userKey\u0027 initialized from the string \u00270penBmc\u0027 and an often-predictable \u0027bmcRandomNum\u0027. Several downstream vendors implement phosphor-net-ipmid as their IPMI stack, such as NVIDIA and H3C.",
"id": "GHSA-28w7-pg33-g2hj",
"modified": "2026-09-15T15:32:11Z",
"published": "2026-09-15T15:32:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-16141"
},
{
"type": "WEB",
"url": "https://www.runzero.com/advisories/openbmc-ipmi-auth-bypass-rakp-cve-2026-16141"
},
{
"type": "WEB",
"url": "https://www.runzero.com/blog/lights-out-exposed"
}
],
"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-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)
{
"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)
{
"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)
{
"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"
}
]
}
GHSA-2MJG-798R-MXWH
Vulnerability from github – Published: 2024-09-04 00:31 – Updated: 2025-11-04 00:31
VLAI
Details
A vulnerability was found in OpenSC, OpenSC tools, PKCS#11 module, minidriver, and CTK. An attacker could use a crafted USB Device or Smart Card, which would present the system with a specially crafted response to APDUs. When buffers are partially filled with data, initialized parts of the buffer can be incorrectly accessed.
Severity
{
"affected": [],
"aliases": [
"CVE-2024-45616"
],
"database_specific": {
"cwe_ids": [
"CWE-457",
"CWE-908"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-09-03T22:15:04Z",
"severity": "LOW"
},
"details": "A vulnerability was found in OpenSC, OpenSC tools, PKCS#11 module, minidriver, and CTK. An attacker could use a crafted USB Device or Smart Card, which would present the system with a specially crafted response to APDUs. When buffers are partially filled with data, initialized parts of the buffer can be incorrectly accessed.",
"id": "GHSA-2mjg-798r-mxwh",
"modified": "2025-11-04T00:31:20Z",
"published": "2024-09-04T00:31:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-45616"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2024-45616"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2309290"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00026.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
"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.