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.
332 vulnerabilities reference this CWE, most recent first.
GHSA-24H4-9R9X-FC93
Vulnerability from github – Published: 2026-07-09 00:31 – Updated: 2026-07-09 00:31BLF file parser in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows possible information disclosure
{
"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 21:32Uninitialized 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)
{
"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 00:33Insufficient input validation leading to memory overread on the NetScaler Management Interface NetScaler ADC and NetScaler Gateway
{
"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 18:31Uninitialized 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)
{
"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 18:31Uninitialized 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)
{
"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 00:31A 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.
{
"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"
}
]
}
GHSA-2P92-92XP-PW8J
Vulnerability from github – Published: 2026-05-29 00:38 – Updated: 2026-05-29 18:31Uninitialized Use in GPU 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)
{
"affected": [],
"aliases": [
"CVE-2026-10008"
],
"database_specific": {
"cwe_ids": [
"CWE-457"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-28T23:16:42Z",
"severity": "MODERATE"
},
"details": "Uninitialized Use in GPU 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-2p92-92xp-pw8j",
"modified": "2026-05-29T18:31:21Z",
"published": "2026-05-29T00:38:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10008"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/513768979"
}
],
"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-2QGR-GFVJ-QPCR
Vulnerability from github – Published: 2025-09-17 19:48 – Updated: 2025-09-26 16:17Impact
The processPieceFromSource method (figure 4.1) is part of a task processing mechanism. The method writes pieces of data to storage, updating a Task structure along the way. The method does not update the structure’s usedTraffic field, because an uninitialized variable n is used as a guard to the AddTraffic method call, instead of the result.Size variable.
var n int64
result.Size, err = pt.GetStorage().WritePiece([skipped])
result.FinishTime = time.Now().UnixNano()
if n > 0 {
pt.AddTraffic(uint64(n))
}
A task is processed by a peer. The usedTraffic metadata is not updated during the processing. Rate limiting is incorrectly applied, leading to a denial-of-service condition for the peer.
Patches
- Dragonfy v2.1.0 and above.
Workarounds
There are no effective workarounds, beyond upgrading.
References
A third party security audit was performed by Trail of Bits, you can see the full report.
If you have any questions or comments about this advisory, please email us at dragonfly-maintainers@googlegroups.com.
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "github.com/dragonflyoss/dragonfly"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Go",
"name": "d7y.io/dragonfly/v2"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-59348"
],
"database_specific": {
"cwe_ids": [
"CWE-457"
],
"github_reviewed": true,
"github_reviewed_at": "2025-09-17T19:48:41Z",
"nvd_published_at": "2025-09-17T20:15:37Z",
"severity": "MODERATE"
},
"details": "### Impact\nThe processPieceFromSource method (figure 4.1) is part of a task processing mechanism. The method writes pieces of data to storage, updating a Task structure along the way. The method does not update the structure\u2019s usedTraffic field, because an uninitialized variable n is used as a guard to the AddTraffic method call, instead of the result.Size variable.\n\n```golang\nvar n int64\nresult.Size, err = pt.GetStorage().WritePiece([skipped])\nresult.FinishTime = time.Now().UnixNano()\nif n \u003e 0 {\n pt.AddTraffic(uint64(n))\n}\n```\n\nA task is processed by a peer. The usedTraffic metadata is not updated during the processing. Rate limiting is incorrectly applied, leading to a denial-of-service condition for the peer.\n\n### Patches\n\n- Dragonfy v2.1.0 and above.\n\n### Workarounds\n\nThere are no effective workarounds, beyond upgrading.\n\n### References\n\nA third party security audit was performed by Trail of Bits, you can see the [full report](https://github.com/dragonflyoss/dragonfly/blob/main/docs/security/dragonfly-comprehensive-report-2023.pdf).\n\nIf you have any questions or comments about this advisory, please email us at [dragonfly-maintainers@googlegroups.com](mailto:dragonfly-maintainers@googlegroups.com).",
"id": "GHSA-2qgr-gfvj-qpcr",
"modified": "2025-09-26T16:17:10Z",
"published": "2025-09-17T19:48:41Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/dragonflyoss/dragonfly/security/advisories/GHSA-2qgr-gfvj-qpcr"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-59348"
},
{
"type": "PACKAGE",
"url": "https://github.com/dragonflyoss/dragonfly"
},
{
"type": "WEB",
"url": "https://github.com/dragonflyoss/dragonfly/blob/main/docs/security/dragonfly-comprehensive-report-2023.pdf"
},
{
"type": "WEB",
"url": "https://pkg.go.dev/vuln/GO-2025-3963"
}
],
"schema_version": "1.4.0",
"severity": [
{
"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:P",
"type": "CVSS_V4"
}
],
"summary": "Dragonfly incorrectly handles a task structure\u2019s usedTrac field"
}
GHSA-2RV8-P95W-9W54
Vulnerability from github – Published: 2024-08-05 15:30 – Updated: 2024-08-05 15:30Memory corruption while processing IOCTL call to set metainfo.
{
"affected": [],
"aliases": [
"CVE-2024-33021"
],
"database_specific": {
"cwe_ids": [
"CWE-457",
"CWE-908"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-05T15:15:51Z",
"severity": "HIGH"
},
"details": "Memory corruption while processing IOCTL call to set metainfo.",
"id": "GHSA-2rv8-p95w-9w54",
"modified": "2024-08-05T15:30:53Z",
"published": "2024-08-05T15:30:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-33021"
},
{
"type": "WEB",
"url": "https://docs.qualcomm.com/product/publicresources/securitybulletin/august-2024-bulletin.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-2W7J-PWRP-QPXJ
Vulnerability from github – Published: 2025-06-06 18:30 – Updated: 2025-06-06 18:30WOLFBOX Level 2 EV Charger BLE Encryption Keys Uninitialized Variable Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of WOLFBOX Level 2 EV Charger devices. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the handling of cryptographic keys used in vendor-specific encrypted communications. The issue results from the lack of proper initialization of a variable prior to accessing it. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-26295.
{
"affected": [],
"aliases": [
"CVE-2025-5749"
],
"database_specific": {
"cwe_ids": [
"CWE-457"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-06T16:15:30Z",
"severity": "MODERATE"
},
"details": "WOLFBOX Level 2 EV Charger BLE Encryption Keys Uninitialized Variable Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of WOLFBOX Level 2 EV Charger devices. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the handling of cryptographic keys used in vendor-specific encrypted communications. The issue results from the lack of proper initialization of a variable prior to accessing it. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-26295.",
"id": "GHSA-2w7j-pwrp-qpxj",
"modified": "2025-06-06T18:30:32Z",
"published": "2025-06-06T18:30:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-5749"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-25-328"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
"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.