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
3,207 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-122page 64 of 65
- CVE-2026-83996HIGHCVSS 8.8EG 8.82026-09-08
Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
- CVE-2026-83998HIGHCVSS 8.8EG 8.82026-09-08
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
- CVE-2026-84000HIGHCVSS 7.8EG 7.82026-09-08
Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to execute code locally.
- CVE-2026-84268HIGHCVSS 8.8EG 8.82026-09-01
A flaw was found in the SFTP backend in gvfs. When mounting a share and reading a file, a malicious SFTP server can cause read_reply() to process a length that exceeds the size requested by the client. The function does not verify the serv…
- CVE-2026-84269MEDIUMCVSS 6.5EG 6.52026-09-01
A flaw was found in the AFP backend in gvfs. When mounting a share, a malicious AFP server can cause the DSI read path to process a length that exceeds the size requested by the client. The function does not verify the server-provided leng…
- CVE-2026-84510MEDIUMCVSS 6.5EG 6.52026-09-14
A heap buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Mounting a maliciously crafted volume ma…
- 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…
- CVE-2026-8509HIGHCVSS 8.8EG 8.82026-05-14
Heap buffer overflow in WebML in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: Critical)
- CVE-2026-85103CRITICALCVSS 9.8EG 9.82026-09-09
A heap-based buffer overflow in VPN certificate ASN.1 decoding may allow an unauthenticated remote attacker to execute arbitrary code on Check Point Quantum Security Management and Quantum Security Gateway systems.
- CVE-2026-8525HIGHCVSS 8.3EG 8.32026-05-14
Heap buffer overflow in ANGLE in Google Chrome on Mac prior to 148.0.7778.168 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
- CVE-2026-8529HIGHCVSS 8.8EG 8.82026-05-14
Heap buffer overflow in Codecs in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted video file. (Chromium security severity: High)
- CVE-2026-8531HIGHCVSS 8.8EG 8.82026-05-14
Heap buffer overflow in WebML in Google Chrome on Windows prior to 148.0.7778.168 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
- CVE-2026-8552MEDIUMCVSS 4.3EG 4.32026-05-14
Heap buffer overflow in GPU in Google Chrome on Android prior to 148.0.7778.168 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: High)
- CVE-2026-8560MEDIUMCVSS 4.3EG 4.32026-05-14
Heap buffer overflow in SwiftShader in Google Chrome on Mac and iOS prior to 148.0.7778.168 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. (Chromium security severity: Medium)
- CVE-2026-85877HIGHCVSS 8.8EG 8.82026-09-08
Heap-based buffer overflow in Windows Print Spooler Components allows an unauthorized attacker to execute code over a network.
- CVE-2026-85880CRITICALCVSS 7.8EG 9.0⚠ KEV2026-09-08
Heap-based buffer overflow in Windows ALPC allows an authorized attacker to elevate privileges locally.
- CVE-2026-86142HIGHCVSS 7.8EG 7.82026-09-05
In libxml2 before 2.15.4, there is a heap-based buffer overflow in xmlXPtrEvalXPtrPart because of xmlXPtrEval xpointer length saturation.
- CVE-2026-8631CRITICALCVSS 9.8EG 9.82026-05-20
A potential security vulnerability has been identified in the HP Linux Imaging and Printing Software. This potential vulnerability may allow escalation of privileges and/or arbitrary code execution via an integer overflow in the hpcups pro…
- CVE-2026-86716HIGHCVSS 7.3EG 7.32026-09-08
A vulnerability was determined in Cesanta mJS up to 1.26. Affected is the function skip_spaces_and_comments of the file src/mjs_tok.c. Executing a manipulation can lead to heap-based buffer overflow. The attack can be launched remotely. Th…
- CVE-2026-86870MEDIUMCVSS 6.5EG 6.52026-09-14
A heap buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27, watchOS 27. Processing a maliciously crafted file may lead to une…
- CVE-2026-8711CRITICALCVSS 9.8EG 9.82026-05-19
NGINX JavaScript has a vulnerability when the js_fetch_proxy directive is configured with at least one client-controlled NGINX variable (for example, $http_*, $arg_*, $cookie_*) and a location invoking the ngx.fetch() operation from NGINX…
- CVE-2026-87430HIGHCVSS 8.8EG 8.82026-09-09
Buffer overflow in WebRTC in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Low)
- CVE-2026-87527CRITICALCVSS 9.6EG 9.62026-09-09
Buffer overflow in WebGL in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)
- CVE-2026-87579HIGHCVSS 8.8EG 8.82026-09-09
Buffer overflow in WebRTC in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
- CVE-2026-87654CRITICALCVSS 9.6EG 9.62026-09-09
Buffer overflow in ANGLE in Google Chrome on on Windows prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
- CVE-2026-8834HIGHCVSS 8.0EG 8.02026-05-26
IBM HTTP Server 8.5, and 9.0 contains a buffer overflow vulnerability. A privileged user, authenticated to the Administration Server, could exploit this vulnerability to execute remote code or cause a denial of service.
- CVE-2026-89028HIGHCVSS 7.5EG 7.52026-09-16
MikroTik RouterOS before 7.24 contains a heap memory corruption vulnerability in the userspace SMB daemon that allows remote attackers to corrupt adjacent heap memory by supplying a crafted uniPwdLen value in the SMB1 SessionSetupAndX hand…
- CVE-2026-8987HIGHCVSS 8.8EG 8.82026-07-21
Autel Maxi Charger Single firmware through V1.03.51 contains a heap-based buffer overflow in the set_ap_param command handled by the /localcfg endpoint. An authenticated attacker can supply oversized input, resulting in denial of service a…
- CVE-2026-8997MEDIUMCVSS 4.8EG 4.82026-05-26
vifm is vulnerable to a heap buffer overflow during the history merge process when saving the state file (vifminfo.json). This flaw occurs because the application lacks a runtime check on the length of history entries in release builds, po…
- CVE-2026-90439MEDIUMCVSS 6.5EG 6.52026-09-15
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module. When using HTTP/3 with OpenSSL versions <= OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a T…
- CVE-2026-90556HIGHCVSS 7.8EG 7.82026-09-12
Freeciv versions before 3.2.6 contain a heap buffer overflow in worklist_load() when processing savegame files with declared worklist lengths exceeding the fixed array bound of 64 elements. Attackers can craft malicious savegame files that…
- CVE-2026-90577MEDIUMCVSS 5.3EG 5.32026-09-13
A vulnerability was detected in GPAC up to f1219cde. Affected by this vulnerability is the function gf_node_get_field of the file scenegraph/base_scenegraph.c of the component MP4Box. Performing a manipulation results in heap-based buffer …
- CVE-2026-90682MEDIUMCVSS 5.3EG 5.32026-09-14
A security vulnerability has been detected in Matthias-Wandel jhead up to 3.3. This impacts the function ProcessGpsInfo of the file gpsinfo.c of the component WebP EXIF Handler. Such manipulation of the argument TAG_GPS_LAT/TAG_GPS_LONG le…
- CVE-2026-91086MEDIUMCVSS 6.3EG 6.32026-09-15
A security vulnerability has been detected in GPAC up to f1219cde. Affected by this issue is the function mpgviddmx_process of the file filters/reframe_mpgvid.c of the component MPEG Video Reframer. Such manipulation leads to heap-based bu…
- CVE-2026-91088MEDIUMCVSS 4.8EG 4.82026-09-15
A vulnerability has been found in GPAC up to f1219cde. This issue affects the function gf_url_concatenate_ex of the file utils/url.c of the component URL Handler. The manipulation leads to heap-based buffer overflow. An attack has to be ap…
- CVE-2026-91098HIGHCVSS 8.6EG 8.62026-09-16
HP has identified and remediated multiple externally reported vulnerabilities within HPLIP. The findings affect several software components that could potentially enable remote code execution, privilege escalation, denial of service, infor…
- CVE-2026-91104CRITICALCVSS 9.3EG 9.32026-09-16
HP has identified and remediated multiple externally reported vulnerabilities within HPLIP. The findings affect several software components that could potentially enable remote code execution, privilege escalation, denial of service, infor…
- CVE-2026-91105HIGHCVSS 8.6EG 8.62026-09-16
HP has identified and remediated multiple externally reported vulnerabilities within HPLIP. The findings affect several software components that could potentially enable remote code execution, privilege escalation, denial of service, infor…
- CVE-2026-91106CRITICALCVSS 9.3EG 9.32026-09-16
HP has identified and remediated multiple externally reported vulnerabilities within HPLIP. The findings affect several software components that could potentially enable remote code execution, privilege escalation, denial of service, infor…
- CVE-2026-9119HIGHCVSS 8.8EG 8.82026-05-20
Heap buffer overflow in WebRTC in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
- CVE-2026-9123HIGHCVSS 7.5EG 7.52026-05-20
Heap buffer overflow in Chromecast in Google Chrome on Android, Linux, ChromeOS prior to 148.0.7778.179 allowed a local attacker to execute arbitrary code inside a sandbox via malicious network traffic. (Chromium security severity: Medium)
- CVE-2026-9149MEDIUMCVSS 6.5EG 6.52026-05-21
A flaw was found in libsolv. This heap buffer overflow vulnerability occurs when a victim processes a specially crafted `.solv` file containing negative size values in the `repo_add_solv` function. This leads to an undersized memory alloca…
- CVE-2026-91964HIGHCVSS 8.8EG 8.82026-09-15
FreeRDP versions before 3.31.0 contain a heap-based buffer overflow in nego_send_negotiation_request when processing Server Redirection PDU messages with attacker-controlled LoadBalanceInfo fields. A malicious RDP server can trigger the ov…
- CVE-2026-92399HIGHCVSS 7.3EG 7.32026-09-16
A vulnerability was determined in GPAC 26.07.0. This affects the function rmt_client_handle_ws_frame of the file src/utils/rmt_ws.c of the component WebSocket Handler. Executing a manipulation of the argument payload_size can lead to heap-…
- CVE-2026-9256HIGHCVSS 8.1EG 8.12026-05-22
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerability exists when a rewrite directive uses a regex pattern with distinct, overlapping Perl-Compatible Regular Expression (PCRE) captu…
- CVE-2026-93381HIGHCVSS 8.8EG 8.82026-09-17
Buffer overflow in PDFium in Google Chrome on on Windows prior to 153.0.8010.52 allowed a remote attacker leveraging social engineering to potentially execute arbitrary code inside the sandbox via a crafted PDF file. (Chromium security sev…
- CVE-2026-9365MEDIUMCVSS 5.6EG 5.62026-05-24
A vulnerability has been found in Ettercap up to 0.8.3. The affected element is the function FUNC_DECODER of the file src/dissectors/ec_gg.c of the component GG Dissector. The manipulation of the argument gg leads to heap-based buffer over…
- CVE-2026-93962HIGHCVSS 8.3EG 8.32026-09-20
A weakness has been identified in Kamailio up to 5.8.8/6.0.7/6.1.4/6.2.0-dev1. The impacted element is the function shm_malloc of the file src/modules/cdp/receiver.c of the component CDP Diameter Receiver. Executing a manipulation can lead…
- CVE-2026-9500MEDIUMCVSS 5.3EG 5.32026-05-25
A vulnerability was found in GNU LibreDWG up to 0.14. The affected element is the function read_2004_compressed_section of the file src/decode.c of the component Dwgread Utility. Performing a manipulation results in heap-based buffer overf…
- CVE-2026-9502MEDIUMCVSS 5.3EG 5.32026-05-25
A vulnerability was identified in GNU LibreDWG up to 0.14. This affects the function decompress_R2004_section of the file src/decode.c of the component Dwgread Utility. The manipulation leads to heap-based buffer overflow. The attack must …
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 →