Common Weakness Enumeration
CWE-416
AllowedUse After Free
Abstraction: Variant · Status: Stable
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9981 vulnerabilities reference this CWE, most recent first.
CVE-2021-41220 (GCVE-0-2021-41220)
Vulnerability from cvelistv5 – Published: 2021-11-05 22:20 – Updated: 2024-08-04 03:08
VLAI
EPSS
VEX
Title
Use after free in `CollectiveReduceV2`
Summary
TensorFlow is an open source platform for machine learning. In affected versions the async implementation of `CollectiveReduceV2` suffers from a memory leak and a use after free. This occurs due to the asynchronous computation and the fact that objects that have been `std::move()`d from are still accessed. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, as this version is the only one that is also affected.
Severity
7.8 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/tensorflow/tensorflow/security… | x_refsource_CONFIRM |
| https://github.com/tensorflow/tensorflow/commit/c… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| tensorflow | tensorflow |
Affected:
>= 2.6.0, < 2.6.1
|
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CVE-2021-41043 (GCVE-0-2021-41043)
Vulnerability from cvelistv5 – Published: 2022-01-05 11:34 – Updated: 2024-08-04 02:59
VLAI
EPSS
VEX
Summary
Use after free in tcpslice triggers AddressSanitizer, no other confirmed impact.
Severity
No CVSS data available.
CWE
- CWE-416 - use after free
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/the-tcpdump-group/tcpslice/issues/11 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Tcpdump Group | tcpslice |
Affected:
unspecified , < 1.5
(custom)
|
Credits
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CVE-2021-40790 (GCVE-0-2021-40790)
Vulnerability from cvelistv5 – Published: 2023-09-07 12:54 – Updated: 2025-02-27 20:59
VLAI
EPSS
VEX
Title
Adobe Premiere Pro MOV File Parsing Use-After-Free Information Disclosure Vulnerability
Summary
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Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/premier… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Premiere Pro |
Affected:
0 , ≤ 15.4.2
(semver)
|
Date Public
2021-12-14 17:00
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CVE-2021-40730 (GCVE-0-2021-40730)
Vulnerability from cvelistv5 – Published: 2021-10-15 14:21 – Updated: 2025-04-23 19:25
VLAI
EPSS
VEX
Title
Adobe Acrobat Reader DC JPEG2000 Parsing Use-After-Free Information Disclosure Vulnerability
Summary
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Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
unspecified , ≤ 21.007.20095
(custom)
Affected: unspecified , ≤ 21.007.20096 (custom) Affected: unspecified , ≤ 20.004.30015 (custom) Affected: unspecified , ≤ 17.011.30202 (custom) |
Date Public
2021-10-12 00:00
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CVE-2021-40728 (GCVE-0-2021-40728)
Vulnerability from cvelistv5 – Published: 2021-10-15 14:22 – Updated: 2025-04-23 19:24
VLAI
EPSS
VEX
Title
Adobe Acrobat Reader DC Use After Free Arbitrary Code Execution
Summary
Adobe Acrobat Reader DC version 21.007.20095 (and earlier), 21.007.20096 (and earlier), 20.004.30015 (and earlier), and 17.011.30202 (and earlier) is affected by a use-after-free vulnerability in the processing of the GetURL function on a global object window that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
unspecified , ≤ 21.007.20095
(custom)
Affected: unspecified , ≤ 21.007.20096 (custom) Affected: unspecified , ≤ 20.004.30015 (custom) Affected: unspecified , ≤ 17.011.30202 (custom) |
Date Public
2021-10-12 00:00
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CVE-2021-40726 (GCVE-0-2021-40726)
Vulnerability from cvelistv5 – Published: 2021-10-07 15:07 – Updated: 2024-09-17 01:35
VLAI
EPSS
VEX
Title
Adobe Acrobat Reader DC AcroForm Field Use-After-Free Remote Code Execution Vulnerability
Summary
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Severity
7.8 (High)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | x_refsource_MISC |
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
unspecified , ≤ 2020.004.30006
(custom)
Affected: unspecified , ≤ 2017.011.30199 (custom) Affected: unspecified , ≤ 2021.005.20060 (custom) Affected: unspecified , ≤ None (custom) |
Date Public
2021-09-14 00:00
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CVE-2021-40725 (GCVE-0-2021-40725)
Vulnerability from cvelistv5 – Published: 2021-10-07 15:07 – Updated: 2024-09-16 20:36
VLAI
EPSS
VEX
Title
Adobe Acrobat Reader DC AcroForm listbox Use-After-Free Remote Code Execution Vulnerability
Summary
Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a use-after-free vulnerability when processing AcroForm listbox that could result in arbitrary code execution in the context of the current user. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
Severity
7.8 (High)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | x_refsource_MISC |
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
unspecified , ≤ 2020.004.30006
(custom)
Affected: unspecified , ≤ 2017.011.30199 (custom) Affected: unspecified , ≤ 2021.005.20060 (custom) Affected: unspecified , ≤ None (custom) |
Date Public
2021-09-14 00:00
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CVE-2021-40420 (GCVE-0-2021-40420)
Vulnerability from cvelistv5 – Published: 2022-02-04 22:29 – Updated: 2025-04-15 19:10
VLAI
EPSS
VEX
Summary
A use-after-free vulnerability exists in the JavaScript engine of Foxit Software’s PDF Reader, version 11.1.0.52543. A specially-crafted PDF document can trigger the reuse of previously freed memory, which can lead to arbitrary code execution. An attacker needs to trick the user to open the malicious file to trigger this vulnerability. Exploitation is also possible if a user visits a specially-crafted, malicious site if the browser plugin extension is enabled.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
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CVE-2021-40399 (GCVE-0-2021-40399)
Vulnerability from cvelistv5 – Published: 2022-05-12 17:01 – Updated: 2025-04-15 19:04
VLAI
EPSS
VEX
Summary
An exploitable use-after-free vulnerability exists in WPS Spreadsheets ( ET ) as part of WPS Office, version 11.2.0.10351. A specially-crafted XLS file can cause a use-after-free condition, resulting in remote code execution. An attacker needs to provide a malformed file to the victim to trigger the vulnerability.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://talosintelligence.com/vulnerability_repor… | x_refsource_MISC |
| https://security.wps.cn/notices/28 | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| WPS | WPS Office |
Affected:
11.2.0.10351
|
Date Public
2022-05-09 00:00
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CVE-2021-40125 (GCVE-0-2021-40125)
Vulnerability from cvelistv5 – Published: 2021-10-27 18:50 – Updated: 2024-11-07 21:46
VLAI
EPSS
VEX
Title
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv2 Site-to-Site VPN Denial of Service Vulnerability
Summary
A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. This vulnerability is due to improper control of a resource. An attacker with the ability to spoof a trusted IKEv2 site-to-site VPN peer and in possession of valid IKEv2 credentials for that peer could exploit this vulnerability by sending malformed, authenticated IKEv2 messages to an affected device. A successful exploit could allow the attacker to trigger a reload of the device.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Adaptive Security Appliance (ASA) Software |
Affected:
n/a
|
Date Public
2021-10-27 00:00
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"references": {
"reference_data": [
{
"name": "20211027 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv2 Site-to-Site VPN Denial of Service Vulnerability",
"refsource": "CISCO",
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-g4cmrr7C"
}
]
},
"source": {
"advisory": "cisco-sa-asaftd-ikev2-dos-g4cmrr7C",
"defect": [
[
"CSCvy93480"
]
],
"discovery": "INTERNAL"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"cveId": "CVE-2021-40125",
"datePublished": "2021-10-27T18:50:09.794Z",
"dateReserved": "2021-08-25T00:00:00.000Z",
"dateUpdated": "2024-11-07T21:46:26.254Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
Mitigation
Architecture and Design
Strategy: Language Selection
Choose a language that provides automatic memory management.
Mitigation
Implementation
Strategy: Attack Surface Reduction
When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
No CAPEC attack patterns related to this CWE.