Common Weakness Enumeration
CWE-789
AllowedMemory Allocation with Excessive Size Value
Abstraction: Variant · Status: Draft
The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.
321 vulnerabilities reference this CWE, most recent first.
CVE-2022-22226 (GCVE-0-2022-22226)
Vulnerability from cvelistv5 – Published: 2022-10-18 02:46 – Updated: 2025-05-12 14:41
VLAI
EPSS
VEX
Title
Junos OS: EX4300-MP, EX4600, QFX5000 Series: In VxLAN scenarios specific packets processed cause a memory leak leading to a PFE crash
Summary
In VxLAN scenarios on EX4300-MP, EX4600, QFX5000 Series devices an Uncontrolled Memory Allocation vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an unauthenticated adjacently located attacker sending specific packets to cause a Denial of Service (DoS) condition by crashing one or more PFE's when they are received and processed by the device. Upon automatic restart of the PFE, continued processing of these packets will cause the memory leak to reappear. Depending on the volume of packets received the attacker may be able to create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS on EX4300-MP, EX4600, QFX5000 Series: 17.1 version 17.1R1 and later versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R2-S13, 17.4R3-S5; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R1-S8, 18.4R2-S6, 18.4R3-S6; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R1-S7, 19.2R3-S1; 19.3 versions prior to 19.3R2-S6, 19.3R3-S1; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S1; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2-S3, 20.2R3; 20.3 versions prior to 20.3R2. This issue does not affect Junos OS versions prior to 17.1R1.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-789 - Uncontrolled Memory Allocation
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Unaffected:
unspecified , < 17.1R1
(custom)
Affected: 17.1R1 , < 17.1* (custom) Affected: 17.2R1 , < 17.2* (custom) Affected: 17.3 , < 17.3R3-S12 (custom) Affected: 17.4 , < 17.4R2-S13, 17.4R3-S5 (custom) Affected: 18.1 , < 18.1R3-S13 (custom) Affected: 18.2 , < 18.2R3-S8 (custom) Affected: 18.3 , < 18.3R3-S5 (custom) Affected: 18.4 , < 18.4R1-S8, 18.4R2-S6, 18.4R3-S6 (custom) Affected: 19.1 , < 19.1R3-S4 (custom) Affected: 19.2 , < 19.2R1-S7, 19.2R3-S1 (custom) Affected: 19.3 , < 19.3R2-S6, 19.3R3-S1 (custom) Affected: 19.4 , < 19.4R1-S4, 19.4R2-S4, 19.4R3-S1 (custom) Affected: 20.1 , < 20.1R2 (custom) Affected: 20.2 , < 20.2R2-S3, 20.2R3 (custom) Affected: 20.3 , < 20.3R2 (custom) |
Date Public
2022-10-12 00:00
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CVE-2022-22188 (GCVE-0-2022-22188)
Vulnerability from cvelistv5 – Published: 2022-04-14 15:50 – Updated: 2024-09-16 16:57
VLAI
EPSS
VEX
Title
Junos OS: QFX5100/QFX5110/QFX5120/QFX5200/QFX5210/EX4600/EX4650 Series: When storm control profiling is enabled and a device is under an active storm, a Heap-based Buffer Overflow in the PFE will cause a device to hang.
Summary
An Uncontrolled Memory Allocation vulnerability leading to a Heap-based Buffer Overflow in the packet forwarding engine (PFE) of Juniper Networks Junos OS allows a network-based unauthenticated attacker to flood the device with traffic leading to a Denial of Service (DoS). The device must be configured with storm control profiling limiting the number of unknown broadcast, multicast, or unicast traffic to be vulnerable to this issue. This issue affects: Juniper Networks Junos OS on QFX5100/QFX5110/QFX5120/QFX5200/QFX5210/EX4600/EX4650 Series; 20.2 version 20.2R1 and later versions prior to 20.2R2. This issue does not affect: Juniper Networks Junos OS versions prior to 20.2R1.
Severity
7.5 (High)
Assigner
References
1 reference
| URL | Tags |
|---|---|
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Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Unaffected:
unspecified , < 20.2R1
(custom)
Affected: 20.2R1 , < 20.2* (custom) |
Date Public
2022-04-13 00:00
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CVE-2022-20845 (GCVE-0-2022-20845)
Vulnerability from cvelistv5 – Published: 2024-11-15 15:32 – Updated: 2024-11-15 15:43
VLAI
EPSS
VEX
Title
Cisco Network Convergence System 4000 Series TL1 Denial of Service Vulnerability
Summary
A vulnerability in the TL1 function of Cisco Network Convergence System (NCS) 4000 Series could allow an authenticated, local attacker to cause a memory leak in the TL1 process.
This vulnerability is due to TL1 not freeing memory under some conditions. An attacker could exploit this vulnerability by connecting to the device and issuing TL1 commands after being authenticated. A successful exploit could allow the attacker to cause the TL1 process to consume large amounts of memory. When the memory reaches a threshold, the Resource Monitor (Resmon) process will begin to restart or shutdown the top five consumers of memory, resulting in a denial of service (DoS).Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.This advisory is part of the September 2022 release of the Cisco IOS XR Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see .
Severity
6 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-789 - Uncontrolled Memory Allocation
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco IOS XR Software |
Affected:
6.5.29
Affected: 6.5.26 Affected: 6.5.25 Affected: 6.5.28 Affected: 6.5.31 Affected: 6.5.32 |
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CVE-2022-20717 (GCVE-0-2022-20717)
Vulnerability from cvelistv5 – Published: 2022-04-15 14:15 – Updated: 2024-11-06 16:27
VLAI
EPSS
VEX
Title
Cisco SD-WAN vEdge Routers Denial of Service Vulnerability
Summary
A vulnerability in the NETCONF process of Cisco SD-WAN vEdge Routers could allow an authenticated, local attacker to cause an affected device to run out of memory, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient memory management when an affected device receives large amounts of traffic. An attacker could exploit this vulnerability by sending malicious traffic to an affected device. A successful exploit could allow the attacker to cause the device to crash, resulting in a DoS condition.
Severity
5.5 (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 SD-WAN vEdge router |
Affected:
n/a
|
Date Public
2022-04-13 00:00
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CVE-2022-4741 (GCVE-0-2022-4741)
Vulnerability from cvelistv5 – Published: 2022-12-25 19:47 – Updated: 2024-08-03 01:48
VLAI
EPSS
VEX
Title
docconv XMLToText memory allocation
Summary
A vulnerability was found in docconv up to 1.2.0 and classified as problematic. This issue affects the function ConvertDocx/ConvertODT/ConvertPages/ConvertXML/XMLToText. The manipulation leads to uncontrolled memory allocation. The attack may be initiated remotely. Upgrading to version 1.2.1 is able to address this issue. The name of the patch is 42bcff666855ab978e67a9041d0cdea552f20301. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-216779.
Severity
4.3 (Medium)
4.3 (Medium)
CWE
- CWE-789 - Uncontrolled Memory Allocation
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.216779 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.216779 | signaturepermissions-required |
| https://github.com/sajari/docconv/pull/111 | issue-tracking |
| https://github.com/sajari/docconv/commit/42bcff66… | patch |
| https://github.com/sajari/docconv/releases/tag/v1.2.1 | patch |
Impacted products
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CVE-2021-47973 (GCVE-0-2021-47973)
Vulnerability from cvelistv5 – Published: 2026-05-16 15:26 – Updated: 2026-05-18 12:39
VLAI
EPSS
VEX
Title
Sticky Notes Widget 3.0.6 Denial of Service via Buffer Overflow
Summary
Sticky Notes Widget 3.0.6 contains a denial of service vulnerability that allows attackers to crash the application by pasting excessively long character strings into note fields. Attackers can generate a payload containing 350000 repeated characters and paste it twice into a new note to trigger an application crash on iOS devices.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/49978 | exploit |
| https://www.vulncheck.com/advisories/sticky-notes… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sticky-notes | Sticky Notes Widget |
Affected:
3.0.6
|
Date Public
2021-07-06 00:00
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CVE-2021-47972 (GCVE-0-2021-47972)
Vulnerability from cvelistv5 – Published: 2026-05-16 15:26 – Updated: 2026-05-18 17:53
VLAI
EPSS
VEX
Title
Sticky Notes & Color Widgets 1.4.2 Denial of Service
Summary
Sticky Notes & Color Widgets 1.4.2 contains a denial of service vulnerability that allows attackers to crash the application by creating notes with excessively long character strings. Attackers can paste large payloads of repeated characters into note fields to trigger application crashes and make the application stop responding.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/49957 | exploit |
| https://www.vulncheck.com/advisories/sticky-notes… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sticky-notes-color-widgets | Sticky Notes Color Widgets |
Affected:
1.4.2
|
Date Public
2021-04-06 00:00
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CVE-2021-47971 (GCVE-0-2021-47971)
Vulnerability from cvelistv5 – Published: 2026-05-16 15:26 – Updated: 2026-05-18 18:50
VLAI
EPSS
VEX
Title
My Notes Safe 5.3 Denial of Service via Buffer Overflow
Summary
My Notes Safe 5.3 contains a denial of service vulnerability that allows attackers to crash the application by pasting excessively long character strings into note fields. Attackers can generate a payload containing 350000 repeated characters and paste it twice into a new note to trigger an application crash.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/49954 | exploit |
| https://www.vulncheck.com/advisories/my-notes-saf… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| my-notes-safe | My Notes Safe |
Affected:
5.3
|
Date Public
2021-04-06 00:00
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CVE-2021-47970 (GCVE-0-2021-47970)
Vulnerability from cvelistv5 – Published: 2026-05-16 15:26 – Updated: 2026-05-25 23:41
VLAI
EPSS
VEX
Title
Macaron Notes 5.5 Denial of Service via Buffer Overflow
Summary
Macaron Notes 5.5 contains a denial of service vulnerability that allows attackers to crash the application by creating notes with excessively long character strings. Attackers can generate a payload containing 350000 repeated characters and paste it into a note field to trigger application crash and stop functionality.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/49953 | exploit |
| https://www.vulncheck.com/advisories/macaron-note… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Macaron Notes | Macaron Notes |
Affected:
5.5
|
Date Public
2021-04-06 00:00
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CVE-2021-47969 (GCVE-0-2021-47969)
Vulnerability from cvelistv5 – Published: 2026-05-16 15:26 – Updated: 2026-05-18 19:55
VLAI
EPSS
VEX
Title
Color Notes 1.4 Denial of Service via Long Character String
Summary
Color Notes 1.4 contains a denial of service vulnerability that allows attackers to crash the application by pasting excessively long character strings into note fields. Attackers can generate a payload containing 350,000 repeated characters and paste it twice into a new note to cause the application to stop responding.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/49952 | exploit |
| https://www.vulncheck.com/advisories/color-notes-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| color-notes | Color Notes |
Affected:
1.4
|
Date Public
2021-04-06 00:00
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"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-789",
"description": "Memory Allocation with Excessive Size Value",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-16T15:26:10.282Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "ExploitDB-49952",
"tags": [
"exploit"
],
"url": "https://www.exploit-db.com/exploits/49952"
},
{
"name": "VulnCheck Advisory: Color Notes 1.4 Denial of Service via Long Character String",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/color-notes-denial-of-service-via-long-character-string"
}
],
"title": "Color Notes 1.4 Denial of Service via Long Character String",
"x_generator": {
"engine": "vulncheck"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2021-47969",
"datePublished": "2026-05-16T15:26:10.282Z",
"dateReserved": "2026-05-16T14:29:45.604Z",
"dateUpdated": "2026-05-18T19:55:22.515Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation
Implementation
Architecture and Design
Perform adequate input validation against any value that influences the amount of memory that is allocated. Define an appropriate strategy for handling requests that exceed the limit, and consider supporting a configuration option so that the administrator can extend the amount of memory to be used if necessary.
Mitigation
Operation
Run your program using system-provided resource limits for memory. This might still cause the program to crash or exit, but the impact to the rest of the system will be minimized.
No CAPEC attack patterns related to this CWE.