Common Weakness Enumeration

CWE-122

Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

CVE-2026-11604 (GCVE-0-2026-11604)

Vulnerability from cvelistv5 – Published: 2026-06-10 21:04 – Updated: 2026-06-11 13:27
VLAI
Summary
An incorrect buffer size calculation in the epoch key generator in OpenVPN ovpn-dco-win version 2.0.0 through 2.8.3 allows a remote authenticated peer to trigger a heap-based buffer overflow and kernel memory corruption via a crafted data packet, resulting in a system crash (denial of service).
Severity
5.6 (Medium)
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-131 - Incorrect calculation of buffer size
  • CWE-122 - Heap-based buffer overflow
  • CWE-787 - Out-of-bounds write
Assigner
References
Impacted products
Vendor Product Version
OpenVPN ovpn-dco-win Affected: 2.0.0 , ≤ 2.5.8 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-11792 (GCVE-0-2026-11792)

Vulnerability from cvelistv5 – Published: 2026-06-09 13:11 – Updated: 2026-06-09 13:35
VLAI
Title
389-ds-base: 389-ds-base: heap buffer overflow in audit log password masking (create_masked_entry_string)
Summary
A heap buffer overflow flaw was found in 389 Directory Server. When audit logging is enabled, the create_masked_entry_string() function in auditlog.c copies a fixed-length password mask into a precisely-sized heap buffer without checking available space. If a short cleartext password is logged (requiring non-default CLEAR password storage or a compromised replication peer), the copy overflows the buffer, corrupting heap memory and audit log output.
Severity
3.3 (Low)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Date Public
2026-04-16 00:00
Show details on NVD website
To clipboard 

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CVE-2026-11822 (GCVE-0-2026-11822)

Vulnerability from cvelistv5 – Published: 2026-06-09 19:08 – Updated: 2026-06-09 20:02
VLAI
Title
SQLite before 3.53.2 Memory Corruption in FTS5 Extension
Summary
SQLite before 3.53.2 contains memory corruption vulnerabilities in the FTS5 full-text search extension that allow attackers to cause process crashes, memory exhaustion, or arbitrary code execution by supplying a crafted database with malformed FTS5 page data. Attackers can trigger an out-of-bounds read in fts5LeafSeek() via an attacker-controlled loop bound and a heap buffer overflow write in fts5ChunkIterate() through a crafted continuation page causing an integer underflow, exploitable when an FTS5 MATCH query is executed against the malicious database.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.5 (High)
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
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
SQLite SQLite Affected: 0 , < 3.53.2 (custom)
Create a notification for this product.
Date Public
2026-06-09 19:10
Credits
Ashish Kunwar (@D0rkerDevil)
Show details on NVD website
To clipboard 

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CVE-2026-11824 (GCVE-0-2026-11824)

Vulnerability from cvelistv5 – Published: 2026-06-09 19:21 – Updated: 2026-06-09 19:41
VLAI
Title
SQLite before 3.53.2 Heap Buffer Overflow via FTS5 fts5ChunkIterate
Summary
SQLite before 3.53.2 contains a heap-based buffer overflow vulnerability in the FTS5 full-text search extension that allows attackers to cause a crash or execute arbitrary code by supplying a crafted database with malicious continuation page metadata specifying a szLeaf value smaller than 4. Attackers can trigger an integer underflow in fts5ChunkIterate() causing an inflated remaining byte count during FTS5 MATCH query processing, leading to a heap buffer overflow of attacker-controlled data in applications compiled with SQLITE_ENABLE_FTS5.
Severity
8.5 (High)
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
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 (v2.0.3)
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
SQLite SQLite Affected: 0 , < 3.53.2 (custom)
Create a notification for this product.
Date Public
2026-06-09 19:30
Credits
Ashish Kunwar (@D0rkerDevil)
Show details on NVD website
To clipboard 

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CVE-2026-11884 (GCVE-0-2026-11884)

Vulnerability from cvelistv5 – Published: 2026-06-10 14:07 – Updated: 2026-06-10 16:31
VLAI
Title
389-ds-base: 389-ds-base: heap buffer overflow in schema objectclass serialization due to missing oc_superior in size calculation
Summary
A heap buffer overflow flaw was found in 389 Directory Server. When serializing objectclass definitions, the oc_superior (SUP) field length is omitted from buffer size calculations in read_schema_dse() and schema_oc_to_string(), but the field is still written via strcat(). An attacker with Directory Manager privileges, or a compromised replication supplier, can trigger a server crash by creating objectclasses with long SUP values. This is an incomplete fix variant of CVE-2025-14905.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Date Public
2026-06-04 20:32
Show details on NVD website
To clipboard 

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CVE-2026-12193 (GCVE-0-2026-12193)

Vulnerability from cvelistv5 – Published: 2026-06-14 23:30 – Updated: 2026-06-15 12:49
VLAI
Title
VS Revo RevoUninstaller IOCTL RevoDetector.sys IOCtl_Handler heap-based overflow
Summary
A vulnerability was identified in VS Revo RevoUninstaller 2.5.x/2.6.x. The affected element is the function IOCtl_Handler in the library RevoDetector.sys of the component IOCTL Handler. Such manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit is publicly available and might be used. Upgrading to version 2.7.0 is sufficient to fix this issue. It is recommended to upgrade the affected component.
Severity
8.5 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
VS Revo RevoUninstaller Affected: 2.5.*
Affected: 2.6.*
Unaffected: 2.7.0
    cpe:2.3:a:vs_revo:revouninstaller:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
Jordanhiggins (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-12244 (GCVE-0-2026-12244)

Vulnerability from cvelistv5 – Published: 2026-06-25 05:24 – Updated: 2026-06-25 12:45
VLAI
Title
Heap overflow and crash with crafted SVCB RR
Summary
If NSD is configured as secondary for a zone, the primary of that zone can crash NSD with an AXFR containing a DNS message with a special crafted SVCB RR with an rdata size of 65512, that let's an (uint16_t) variable that is used to allocate space needed for the RR wrap (because total size > 65535), causing a heap overflow. The attacker can perform a controlled (RCE class) head write of up to 65509 bytes
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-190 - Integer Overflow or Wraparound
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
NLnet Labs NSD Affected: 4.14.0 , < 4.14.3 (semver)
Create a notification for this product.
Date Public
2026-06-25 00:00
Credits
Qifan Zhang from Palo Alto Networks
Show details on NVD website
To clipboard 

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CVE-2026-12725 (GCVE-0-2026-12725)

Vulnerability from cvelistv5 – Published: 2026-06-22 13:55 – Updated: 2026-06-22 18:20
VLAI
Title
Dnsmasq: dnsmasq: heap buffer overflow in log_query() when logging unsupported ds/dnskey replies
Summary
A heap-based buffer overflow was found in dnsmasq. When DNSSEC validation and query logging are both enabled, logging of DS or DNSKEY replies containing unsupported algorithm or digest types can cause dnsmasq to write past the end of an internal logging buffer. A remote attacker able to supply such a DNS response may crash the dnsmasq process, resulting in denial of service.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-12725 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2490763 issue-trackingx_refsource_REDHAT
Impacted products
Date Public
2026-04-21 21:14
Credits
Red Hat would like to thank Yiwei Hou (UC Berkeley) for reporting this issue.
Show details on NVD website
To clipboard 

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CVE-2026-12805 (GCVE-0-2026-12805)

Vulnerability from cvelistv5 – Published: 2026-06-21 19:15 – Updated: 2026-06-23 13:36 X_Open Source
VLAI
Title
OFFIS DCMTK ofxml.cc parseFile heap-based overflow
Summary
A flaw has been found in OFFIS DCMTK up to 3.7.0. The affected element is the function XMLNode::parseFile in the library ofstd/libsrc/ofxml.cc. Executing a manipulation can lead to heap-based buffer overflow. The attack may be performed from remote. The exploit has been published and may be used. This patch is called 1d4b3815c0987840a983160bfc671fef63a3105b. It is best practice to apply a patch to resolve this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
6.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
OFFIS DCMTK Affected: 3.0
Affected: 3.1
Affected: 3.2
Affected: 3.3
Affected: 3.4
Affected: 3.5
Affected: 3.6
Affected: 3.7.0
    cpe:2.3:a:offis:dcmtk:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
Fabricio Herrera Sebastian Muñoz FaboHerrrera (VulDB User) FaboHerrrera (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-1283 (GCVE-0-2026-1283)

Vulnerability from cvelistv5 – Published: 2026-01-26 13:25 – Updated: 2026-02-26 15:04
VLAI
Title
Heap-based Buffer Overflow vulnerability affecting the EPRT file reading procedure in SOLIDWORKS eDrawings from Release SOLIDWORKS Desktop 2025 through Release SOLIDWORKS Desktop 2026
Summary
A Heap-based Buffer Overflow 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 (v2.0.3)
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
3DS
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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Mitigation

Phases:

Description:

  • Pre-design: Use a language or compiler that performs automatic bounds checking.
Mitigation

Phase: Architecture and Design

Description:

  • Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation ID: MIT-10

Phases: Operation, Build and Compilation

Strategy: Environment Hardening

Description:

  • Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
  • D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
Mitigation ID: MIT-11

Phases: Operation, Build and Compilation

Strategy: Environment Hardening

Description:

  • Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
  • Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
  • For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
Mitigation

Phase: Implementation

Description:

  • Implement and perform bounds checking on input.
Mitigation

Phase: Implementation

Strategy: Libraries or Frameworks

Description:

  • Do not use dangerous functions such as gets. Look for their safe equivalent, which checks for the boundary.
Mitigation

Phase: Operation

Description:

  • Use OS-level preventative functionality. This is not a complete solution, but it provides some defense in depth.
CAPEC-92: Forced Integer Overflow

This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.

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