VYPR

CWE-122

Heap-based Buffer Overflow

VariantDraftLikelihood: High

Description

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().

Hierarchy (View 1000)

Children

none

Related attack patterns (CAPEC)

CAPEC-92

CVEs mapped to this weakness (2,687)

page 78 of 135
  • CVE-2016-2123HigNov 1, 2018
    risk 0.51cvss 8.8epss 0.06

    A flaw was found in samba versions 4.0.0 to 4.5.2. The Samba routine ndr_pull_dnsp_name contains an integer wrap problem, leading to an attacker-controlled memory overwrite. ndr_pull_dnsp_name parses data from the Samba Active Directory ldb database. Any user who can write to…

  • CVE-2018-1056HigJul 27, 2018
    risk 0.51cvss 7.8epss 0.01

    An out-of-bounds heap buffer read flaw was found in the way advancecomp before 2.1-2018/02 handled processing of ZIP files. An attacker could potentially use this flaw to crash the advzip utility by tricking it into processing crafted ZIP files.

  • CVE-2018-3858HigJul 19, 2018
    risk 0.51cvss 7.8epss 0.01

    An exploitable heap overflow exists in the TIFF parsing functionality of Canvas Draw version 4.0.0. A specially crafted TIFF image processed via the application can lead to an out-of-bounds write, overwriting arbitrary data. An attacker can deliver a TIFF image to trigger this…

  • CVE-2018-3857HigJul 19, 2018
    risk 0.51cvss 7.8epss 0.02

    An exploitable heap overflow exists in the TIFF parsing functionality of Canvas Draw version 4.0.0. A specially crafted TIFF image processed via the application can lead to an out-of-bounds write, overwriting arbitrary data. An attacker can deliver a TIFF image to trigger this…

  • CVE-2018-8833HigApr 25, 2018
    risk 0.51cvss 7.8epss 0.02

    Heap-based buffer overflow vulnerabilities in Advantech WebAccess HMI Designer 2.1.7.32 and prior caused by processing specially crafted .pm3 files may allow remote code execution.

  • CVE-2018-8834HigApr 17, 2018
    risk 0.51cvss 7.8epss 0.00

    Parsing malformed project files in Omron CX-One versions 4.42 and prior, including the following applications: CX-FLnet versions 1.00 and prior, CX-Protocol versions 1.992 and prior, CX-Programmer versions 9.65 and prior, CX-Server versions 5.0.22 and prior, Network Configurator…

  • CVE-2017-16737HigJan 12, 2018
    risk 0.51cvss 7.8epss 0.01

    An issue was discovered in WECON Technology LEVI Studio HMI Editor v1.8.29 and prior. A specially-crafted malicious file may be able to cause a heap-based buffer overflow vulnerability when opened by a user.

  • CVE-2026-44178HigJul 20, 2026
    risk 0.50cvss 8.8epss 0.01

    xrdp is an open source RDP server. Versions 0.10.6 and prior contain a heap-based buffer overflow vulnerability within the virtual channel forwarding mechanism. When forwarding data from a remote client to the internal channel server, the xrdp process utilizes a fixed-size…

  • CVE-2026-63090HigJul 20, 2026
    risk 0.50cvss 8.8epss 0.01

    ProFTPD before 1.3.9c and 1.3.10rc3 contains a heap-based buffer overflow vulnerability in the mod_sftp module that allows authenticated low-privilege attackers to achieve arbitrary code execution by sending crafted SFTP packet fragments exceeding the 16 KB reassembly buffer in…

  • CVE-2026-11826HigJul 18, 2026
    risk 0.50cvss 8.8epss 0.00

    OpenPLC_v3 contains a heap-based buffer overflow in the getData() function in webserver/core/modbus_master.cpp. getData() reads characters between two delimiters into a caller-supplied buffer with no size parameter and no bounds check. In parseConfig() the function is invoked…

  • CVE-2026-12244HigJun 25, 2026
    risk 0.50cvss 8.8epss 0.00

    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…

  • CVE-2026-44421HigMay 29, 2026
    risk 0.50cvss 8.8epss 0.01

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, a malicious RDP server can trigger a heap-buffer-overflow write in the FreeRDP client by sending crafted RDPGFX PDUs. The bug is in gdi_CacheToSurface: it validates a destination rectangle that is…

  • CVE-2026-44420HigMay 29, 2026
    risk 0.50cvss 8.8epss 0.04

    FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, a malicious RDP client can trigger a heap-buffer-overflow write in FreeRDP's server-side clipboard (cliprdr) channel by sending a CB_CLIP_CAPS PDU with a too-small capabilitySetLength. This can…

  • CVE-2026-40033HigMay 26, 2026
    risk 0.50cvss 8.8epss 0.01

    FreeRDP before 3.26.0 contains a heap-buffer-overflow vulnerability in gdi_CacheToSurface that allows remote attackers to write out-of-bounds heap memory. The vulnerability occurs because rectangle validation clamps coordinates to UINT16_MAX but performs copy operations using…

  • CVE-2026-20185HigMay 6, 2026
    risk 0.50cvss 7.7epss 0.00

    A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco 350 Series Managed Switches (SG350) and Cisco 350X Series Stackable Managed Switches (SG350X) firmware could allow an authenticated, remote attacker to cause a denial of service (DoS)…

  • CVE-2026-25589HigMay 5, 2026
    risk 0.50cvss 8.8epss 0.01

    RedisBloom is a probabilistic data structures module for Redis. In all versions of RedisBloom before 2.8.20, the module does not properly validate serialized values processed through the Redis RESTORE command. An authenticated attacker with permission to execute RESTORE on a…

  • CVE-2026-25588HigMay 5, 2026
    risk 0.50cvss 8.8epss 0.01

    RedisTimeSeries is a time-series module for Redis. In all versions before 1.12.14 of RedisTimeSeries, the module does not properly validate serialized values processed through the Redis RESTORE command. An authenticated attacker with permission to execute RESTORE on a server…

  • CVE-2026-25243HigMay 5, 2026
    risk 0.50cvss 8.8epss 0.03

    Redis is an in-memory data structure store. In versions of redis-server up to 8.6.3, the RESTORE command does not properly validate serialized values. An authenticated attacker with permission to execute RESTORE can supply a crafted serialized payload that triggers invalid…

  • CVE-2026-5402HigApr 30, 2026
    risk 0.50cvss 8.8epss 0.00

    TLS protocol dissector heap overflow in Wireshark 4.6.0 to 4.6.4 allows denial of service and possible code execution

  • CVE-2026-40614HigApr 21, 2026
    risk 0.50cvss 8.8epss 0.00

    PJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, there is a buffer overflow when decoding Opus audio frames due to insufficient buffer size validation in the Opus codec decode path. The FEC decode buffers (dec_frame[].buf) were…