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().— MITRE CWE catalog
2,475 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-122page 49 of 50
- CVE-2026-57156CRITICALCVSS 9.8EG 9.82026-07-10
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0 on 32-bit builds, FreeRDP clients contain an integer overflow in update_read_delta_points in libfreerdp/core/orders.c when multiplying an attacker-controlled …
- CVE-2026-58306MEDIUMCVSS 6.1EG 6.12026-07-09
Heap-based buffer overflow vulnerability in Samsung Open Source Escargot allows Overflow Buffers. This issue affects Escargot: before ef525f337fafddecde77a3c426212a84bb20cb98.
- CVE-2026-58379HIGHCVSS 7.3EG 7.32026-07-03
A flaw was found in GIMP's Paint Shop Pro (PSP) file format parser. This heap buffer overflow vulnerability allows a remote attacker to cause arbitrary code execution or a denial of service (DoS) by tricking a user into opening a specially…
- CVE-2026-58471MEDIUMCVSS 5.9EG 5.92026-07-07
GNU Wget through 1.25.0, fixed in commit c2640fe, contains a heap buffer overflow vulnerability in the convert_fname() function within src/url.c that allows remote attackers to trigger memory corruption through a server-supplied filename r…
- CVE-2026-58530HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an unauthorized attacker to execute code locally.
- CVE-2026-58534HIGHCVSS 7.8EG 8.82026-07-14
Heap-based buffer overflow in Microsoft Input Method Editor (IME) allows an authorized attacker to elevate privileges locally.
- CVE-2026-58538HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows Bluetooth Service allows an authorized attacker to elevate privileges locally.
- CVE-2026-58542HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally.
- CVE-2026-58547HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Universal Plug and Play (upnp.dll) allows an authorized attacker to elevate privileges locally.
- CVE-2026-5858HIGHCVSS 8.8EG 8.82026-04-08
Heap buffer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary code via a crafted HTML page. (Chromium security severity: Critical)
- CVE-2026-58601HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Virtual Hard Disk (VHD) Miniport Driver allows an authorized attacker to elevate privileges locally.
- CVE-2026-58610HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code locally.
- CVE-2026-58618HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
- CVE-2026-5864MEDIUMCVSS 4.3EG 6.52026-04-08
Heap buffer overflow in WebAudio in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)
- CVE-2026-58640HIGHCVSS 7.8EG 7.82026-07-14
Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally.
- CVE-2026-5867MEDIUMCVSS 4.3EG 6.52026-04-08
Heap buffer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)
- CVE-2026-5868HIGHCVSS 8.8EG 8.82026-04-08
Heap buffer overflow in ANGLE in Google Chrome on Mac prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
- CVE-2026-5869MEDIUMCVSS 4.3EG 6.52026-04-08
Heap buffer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)
- CVE-2026-61390HIGHCVSS 7.7EG 7.72026-07-22
There is a heap buffer overflow vulnerability in some Hikvision cameras, which may allow unauthenticated attackers to cause device malfunction by sending specially crafted packets.
- CVE-2026-61464LOWCVSS 1.8EG 1.82026-07-15
ImageMagick before 7.1.2-26 and 6.9.13-51 contains a heap-based buffer over-write vulnerability that occurs when running an X11 import with a crafted window title, which can result in heap memory corruption and denial of service.
- CVE-2026-6210HIGHCVSS 8.7EG 8.72026-05-06
A type confusion vulnerability in Qt SVG allows an attacker to cause an application crash via a crafted SVG image. When processing SVG marker references, the renderer retrieves a node by its id attribute and casts it to QSvgMarker* with…
- CVE-2026-6296CRITICALCVSS 9.6EG 9.62026-04-15
Heap buffer overflow in ANGLE in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)
- CVE-2026-6298MEDIUMCVSS 4.3EG 4.32026-04-15
Heap buffer overflow in Skia in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Critical)
- CVE-2026-6305HIGHCVSS 8.8EG 8.82026-04-15
Heap buffer overflow in PDFium in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted PDF file. (Chromium security severity: High)
- CVE-2026-6306HIGHCVSS 8.8EG 8.82026-04-15
Heap buffer overflow in PDFium in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted PDF file. (Chromium security severity: High)
- CVE-2026-63090HIGHCVSS 8.8EG 8.82026-07-20
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 e…
- CVE-2026-6361HIGHCVSS 8.3EG 8.32026-04-15
Heap buffer overflow in PDFium in Google Chrome on Windows prior to 147.0.7727.101 allowed a remote attacker who convinced a user to engage in specific UI gestures to execute arbitrary code inside a sandbox via a crafted PDF file. (Chromiu…
- CVE-2026-64620CRITICALCVSS 9.8EG 9.82026-07-20
FreeRDP before 3.28.0 (affected <=3.27.1) contains a heap-based buffer overflow in crypto_rsa_common() (libfreerdp/crypto/crypto.c). The function writes the modular-exponentiation result into the caller's output buffer via BN_bn2bin() and …
- CVE-2026-64830HIGHCVSS 8.8EG 8.82026-07-22
FFmpeg versions 2.1 through 8.1.2 contains a heap buffer overflow vulnerability in the VobSub subtitle demuxer that allows attackers to corrupt adjacent heap memory by supplying a malicious .sub/.idx subtitle file declaring more distinct s…
- CVE-2026-6491MEDIUMCVSS 5.3EG 5.32026-04-17
A security vulnerability has been detected in libvips up to 8.18.2. The affected element is the function im_minpos_vec of the file libvips/deprecated/vips7compat.c of the component nip2 Handler. Such manipulation of the argument n leads to…
- CVE-2026-6529MEDIUMCVSS 5.5EG 5.52026-04-30
iLBC audio codec crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
- CVE-2026-6530MEDIUMCVSS 5.5EG 5.52026-04-30
DCP-ETSI protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
- CVE-2026-66035HIGHCVSS 7.5EG 7.52026-07-24
libssh2 through 1.11.1, fixed in commit 42e33d8, contains a pre-authentication heap buffer overflow vulnerability that allows a malicious SSH server to corrupt heap metadata in any connecting client by sending a packet with a packet_length…
- CVE-2026-66036HIGHCVSS 8.8EG 8.82026-07-24
FFmpeg through 8.1.2, fixed in commit 5d7112c, contains a heap out-of-bounds write vulnerability in the vf_hqdn3d filter that allows attackers to corrupt heap memory by supplying a crafted video whose frame resolution increases between fra…
- CVE-2026-66039HIGHCVSS 8.8EG 8.82026-07-24
FFmpeg through 8.1.2, fixed in commit aafb5c6, contains a signed integer overflow vulnerability in the MACE6 audio decoder that allows attackers to corrupt heap memory by supplying a crafted CAF file with a malicious bytes_per_packet value…
- CVE-2026-66040HIGHCVSS 8.8EG 8.82026-07-24
FFmpeg through 8.1.2, fixed in commit b506faf, contains a heap out-of-bounds write vulnerability in the native PNG and APNG encoders that allows remote attackers to corrupt heap memory by supplying a crafted PNG image with a malicious eXIf…
- CVE-2026-6846HIGHCVSS 7.8EG 7.82026-04-22
A flaw was found in binutils. A heap-buffer-overflow vulnerability exists when processing a specially crafted XCOFF (Extended Common Object File Format) object file during linking. A local attacker could trick a user into processing this m…
- CVE-2026-7040HIGHCVSS 7.5EG 7.52026-04-27
Text::Minify::XS versions from 0.3.0 before 0.7.8 for Perl have a heap overflow when processing some malformed UTF-8 characters. The minify functions mishandled some malformed UTF-8 characters, leading to heap corruption. Note that the m…
- CVE-2026-7310MEDIUMCVSS 4.4EG 4.42026-05-26
A heap-based buffer overflow vulnerability exists in XML parser functionality in the HiDraw. An authenticated malicious user with local access can exploit this vulnerability using a specially crafted XML file which may lead to memory corru…
- CVE-2026-7339HIGHCVSS 8.8EG 8.82026-04-28
Heap buffer overflow in WebRTC in Google Chrome prior to 147.0.7727.138 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)
- CVE-2026-7353HIGHCVSS 8.3EG 8.32026-04-28
Heap buffer overflow in Skia in Google Chrome prior to 147.0.7727.138 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
- CVE-2026-7378MEDIUMCVSS 5.5EG 5.52026-04-30
Crash in sharkd 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
- CVE-2026-7900HIGHCVSS 8.3EG 8.32026-05-06
Heap buffer overflow in ANGLE in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
- CVE-2026-8086MEDIUMCVSS 5.3EG 5.32026-05-07
A vulnerability was identified in OSGeo gdal up to 3.13.0dev-4. This issue affects the function SWnentries of the file frmts/hdf4/hdf-eos/SWapi.c. Such manipulation of the argument DimensionName leads to heap-based buffer overflow. The att…
- CVE-2026-8087MEDIUMCVSS 5.3EG 5.32026-05-07
A security flaw has been discovered in OSGeo gdal up to 3.13.0dev-4. Impacted is the function GDnentries of the file frmts/hdf4/hdf-eos/GDapi.c. Performing a manipulation of the argument DataFieldName results in heap-based buffer overflow.…
- CVE-2026-8175CRITICALCVSS 9.8EG 9.82026-05-27
IBM Aspera High-Speed Transfer Endpoint 3.7.4 through 4.4.7 Fix Pack 1 and IBM Aspera High-Speed Transfer Server 3.7.4 through 4.4.7 Fix Pack 1 and IBM Aspera High-Speed Transfer Endpoint are affected by a buffer overflow in the asperahttp…
- CVE-2026-8212MEDIUMCVSS 5.5EG 5.52026-05-09
A flaw has been found in OSGeo gdal up to 3.13.0dev-4. Affected by this vulnerability is the function SWSDfldsrch of the file frmts/hdf4/hdf-eos/SWapi.c. Executing a manipulation can lead to heap-based buffer overflow. The attack requires …
- CVE-2026-8213MEDIUMCVSS 5.5EG 5.52026-05-09
A vulnerability has been found in OSGeo gdal up to 3.13.0dev-4. Affected by this issue is the function GDSDfldsrch of the file frmts/hdf4/hdf-eos/GDapi.c of the component Grid File Handler. The manipulation leads to heap-based buffer overf…
- CVE-2026-8261MEDIUMCVSS 5.9EG 5.92026-05-11
A vulnerability was determined in Squirrel up to 3.2. This affects the function SQFunctionProto::Load of the file squirrel/sqobject.cpp. This manipulation causes heap-based buffer overflow. The attack is restricted to local execution. The …
- CVE-2026-8484MEDIUMCVSS 4.8EG 4.82026-06-16
A heap buffer overflow vulnerability exists in the Jansi JNI "ioctl()" wrapper due to a lack of size verification for the argument array before the system call. This can lead to heap corruption and application crashes (DoS). All versions a…
Map vulnerabilities like CWE-122 to your infrastructure
EchelonGraph correlates every CVE — across CWE-122 and 150+ other weakness categories — against the assets you actually run. See blast radius, fix versions, and remediation steps in one graph.
Start Free Scan →