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.

363 vulnerabilities reference this CWE, most recent first.

CVE-2026-17077 (GCVE-0-2026-17077)

Vulnerability from cvelistv5 – Published: 2026-08-13 20:25 – Updated: 2026-08-17 18:18
VLAI
Title
IBM i is Affected By Multiple Vulnerabilities in DRDA / DDM
Summary
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to the use of an uninitialized variable.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-17 17:10 UTC
CWE
  • CWE-457 - Use of Uninitialized Variable
Assigner
ibm CNA under the mitre root
CNA scorecard B 88/100 over 1251 records in the last 180 days details
References
URL Tags
https://www.ibm.com/support/pages/node/7283572 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM i Affected: 7.6
Affected: 7.5
Affected: 7.4
Affected: 7.3
    cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:i:7.6.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:i:7.5.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:i:7.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:i:7.3.0:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-16141 (GCVE-0-2026-16141)

Vulnerability from cvelistv5 – Published: 2026-09-15 13:57 – Updated: 2026-09-15 14:59
VLAI
Title
OpenBMC IPMI Authentication Bypass via Default userKey and Stale Challenge Value
Summary
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)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 14:59 UTC
CWE
  • CWE-798 - Use of Hard-coded Credentials
  • CWE-457 - Use of Uninitialized Variable
Assigner
runZero CNA under the icscert root
CNA scorecard C 71/100 over 30 records in the last 180 days details
References
Impacted products
Vendor Product Version
OpenBMC phosphor-net-ipmid Affected: 0 , ≤ ba6efc502e6b1fabb8ed1ca677ae5eedd64b6361 (git)
Create a notification for this product.
Date Public
2026-09-15 14:00
Credits
HD Moore of runZero Gadi Evron of Knostic Tod Beardsley of runZero
Show details on NVD website
To clipboard 

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CVE-2026-15168 (GCVE-0-2026-15168)

Vulnerability from cvelistv5 – Published: 2026-07-08 21:47 – Updated: 2026-07-09 13:54
VLAI
Title
Use of Uninitialized Variable in Wireshark
Summary
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
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 13:53 UTC
CWE
  • CWE-457 - Use of Uninitialized Variable
Assigner
GitLab CNA under the mitre root
CNA scorecard C 75/100 over 318 records in the last 180 days details
References
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Affected: 4.6.0 , < 4.6.7 (semver)
Affected: 4.4.0 , < 4.4.17 (semver)
Create a notification for this product.
Credits
Thai Duong Tran
Show details on NVD website
To clipboard 

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CVE-2026-9754 (GCVE-0-2026-9754)

Vulnerability from cvelistv5 – Published: 2026-06-09 22:33 – Updated: 2026-06-10 18:29
VLAI
Title
Stack memory disclosure in filemd5 command
Summary
An authenticated user with the read role may read limited amounts of uninitialized stack memory via specially-crafted issuances of the filemd5 command
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 18:29 UTC
CWE
  • CWE-457 - Use of uninitialized variable
Assigner
mongodb CNA under the mitre root
CNA scorecard C 70/100 over 204 records in the last 180 days details
References
Impacted products
Vendor Product Version
MongoDB MongoDB Affected: 8.3.0 , < 8.3.3 (semver)
Affected: 8.2.0 , < 8.2.10 (semver)
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CVE-2026-4147 (GCVE-0-2026-4147)

Vulnerability from cvelistv5 – Published: 2026-03-17 15:50 – Updated: 2026-03-17 16:09
VLAI
Title
Stack memory disclosure in filemd5 command
Summary
An authenticated user with the read role may read limited amounts of uninitialized stack memory via specially-crafted issuances of the filemd5 command.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-17 16:09 UTC
CWE
  • CWE-457 - Use of uninitialized variable
Assigner
mongodb CNA under the mitre root
CNA scorecard C 70/100 over 204 records in the last 180 days details
References
Impacted products
Vendor Product Version
MongoDB Inc MongoDB Server Affected: 8.2 , < 8.2.6 (custom)
Affected: 8.0 , < 8.0.20 (custom)
Affected: 7.0 , < 7.0.31 (custom)
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Show details on NVD website
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CVE-2026-1333 (GCVE-0-2026-1333)

Vulnerability from cvelistv5 – Published: 2026-02-16 13:35 – Updated: 2026-02-26 14:44
VLAI
Title
Use of Uninitialized Variable vulnerability affecting the EPRT file reading procedure in SOLIDWORKS eDrawings from Release SOLIDWORKS Desktop 2025 through Release SOLIDWORKS Desktop 2026
Summary
A Use of Uninitialized Variable vulnerability affecting the EPRT file reading procedure in SOLIDWORKS eDrawings from Release SOLIDWORKS Desktop 2025 through Release SOLIDWORKS Desktop 2026 could allow an attacker to execute arbitrary code while opening a specially crafted EPRT file.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-18 04:56 UTC
CWE
  • CWE-457 - Use of Uninitialized Variable
Assigner
3DS CNA
CNA scorecard C 63/100 over 18 records in the last 180 days details
References
Impacted products
Vendor Product Version
Dassault Systèmes SOLIDWORKS eDrawings Affected: Release SOLIDWORKS Desktop 2025 SP0 , ≤ Release SOLIDWORKS Desktop 2025 SP5 (custom)
Affected: Release SOLIDWORKS Desktop 2026 SP0
Create a notification for this product.
Show details on NVD website
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CVE-2025-64181 (GCVE-0-2025-64181)

Vulnerability from cvelistv5 – Published: 2025-11-10 21:23 – Updated: 2025-11-12 21:05
VLAI
Title
OpenEXR Makes Use of Uninitialized Memory
Summary
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.3.0 through 3.3.5 and 3.4.0 through 3.4.2, while fuzzing `openexr_exrcheck_fuzzer`, Valgrind reports a conditional branch depending on uninitialized data inside `generic_unpack`. This indicates a use of uninitialized memory. The issue can result in undefined behavior and/or a potential crash/denial of service. Versions 3.3.6 and 3.4.3 fix the issue.
Severity
2 (Low)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-11-12 17:36 UTC
CWE
  • CWE-457 - Use of Uninitialized Variable
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7771 records in the last 180 days details
References
Impacted products
Vendor Product Version
AcademySoftwareFoundation openexr Affected: >= 3.3.0, < 3.3.6
Affected: >= 3.4.0, < 3.4.3
Create a notification for this product.
Show details on NVD website
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CVE-2025-59348 (GCVE-0-2025-59348)

Vulnerability from cvelistv5 – Published: 2025-09-17 19:30 – Updated: 2025-09-17 19:45
VLAI
Title
Dragonfly incorrectly handles a task structure’s usedTraffic field
Summary
Dragonfly is an open source P2P-based file distribution and image acceleration system. Prior to 2.1.0, the processPieceFromSource 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. 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. This vulnerability is fixed in 2.1.0.
Severity
5.5 (Medium)
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
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-09-17 19:44 UTC
CWE
  • CWE-457 - Use of Uninitialized Variable
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7771 records in the last 180 days details
References
Impacted products
Vendor Product Version
dragonflyoss dragonfly Affected: < 2.1.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-58466 (GCVE-0-2025-58466)

Vulnerability from cvelistv5 – Published: 2026-02-11 12:16 – Updated: 2026-02-11 16:54
VLAI
Title
QTS, QuTS hero
Summary
A use of uninitialized variable vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to denial of service conditions, or modify control flow in unexpected ways. We have already fixed the vulnerability in the following versions: QTS 5.2.8.3332 build 20251128 and later QuTS hero h5.2.8.3321 build 20251117 and later
Severity
1.2 (Low)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-11 16:54 UTC
CWE
Assigner
qnap CNA under the mitre root
CNA scorecard B 85/100 over 61 records in the last 180 days details
References
Impacted products
Vendor Product Version
QNAP Systems Inc. QTS Affected: 5.2.x , < 5.2.8.3332 build 20251128 (custom)
Create a notification for this product.
QNAP Systems Inc. QuTS hero Affected: h5.2.x , < h5.2.8.3321 build 20251117 (custom)
Create a notification for this product.
Credits
coral
Show details on NVD website
To clipboard 

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CVE-2025-58071 (GCVE-0-2025-58071)

Vulnerability from cvelistv5 – Published: 2025-10-15 15:19 – Updated: 2026-02-26 16:57
VLAI
Title
BIG-IP IPSec vulnerability
Summary
When IPsec is configured on the BIG-IP system, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-16 03:57 UTC
CWE
  • CWE-457 - Use of Uninitialized Variable
Assigner
f5 CNA under the mitre root
CNA scorecard B 84/100 over 87 records in the last 180 days details
References
Impacted products
Vendor Product Version
F5 BIG-IP Affected: 17.5.0 , < 17.5.1 (custom)
Affected: 17.1.0 , < 17.1.3 (custom)
Affected: 16.1.0 , < 16.1.6.1 (custom)
Affected: 15.1.0 , < 15.1.10.8 (custom)
Create a notification for this product.
F5 BIG-IP Next CNF Affected: 2.0.0 , < * (custom)
Affected: 1.1.0 , < * (custom)
Create a notification for this product.
F5 BIG-IP Next for Kubernetes Affected: 2.0.0 , < * (custom)
Create a notification for this product.
Date Public
2025-10-15 14:00
Credits
F5
Show details on NVD website
To clipboard 

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    "assignerShortName": "f5",
    "cveId": "CVE-2025-58071",
    "datePublished": "2025-10-15T15:19:46.470Z",
    "dateReserved": "2025-10-06T23:17:24.102Z",
    "dateUpdated": "2026-02-26T16:57:31.722Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}
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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