CWE-122
Heap-based Buffer Overflow
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)
Related attack patterns (CAPEC)
CAPEC-92
CVEs mapped to this weakness (2,687)
page 95 of 135| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2024-49081 | Med | 0.43 | 6.6 | 0.01 | Dec 12, 2024 | Wireless Wide Area Network Service (WwanSvc) Elevation of Privilege Vulnerability | ||
| CVE-2024-43480 | Med | 0.43 | 6.6 | 0.01 | Oct 8, 2024 | Azure Service Fabric for Linux Remote Code Execution Vulnerability | ||
| CVE-2023-3463 | Med | 0.43 | 6.6 | 0.00 | Jul 19, 2023 | All versions of GE Digital CIMPLICITY that are not adhering to SDG guidance and accepting documents from untrusted sources are vulnerable to memory corruption issues due to insufficient input validation, including issues such as out-of-bounds reads and writes, use-after-free,… | ||
| CVE-2022-3437 | Med | 0.43 | 6.5 | 0.04 | Jan 12, 2023 | A heap-based buffer overflow vulnerability was found in Samba within the GSSAPI unwrap_des() and unwrap_des3() routines of Heimdal. The DES and Triple-DES decryption routines in the Heimdal GSSAPI library allow a length-limited write buffer overflow on malloc() allocated memory… | ||
| CVE-2023-21560 | Med | 0.43 | 6.6 | 0.01 | Jan 10, 2023 | Windows Boot Manager Security Feature Bypass Vulnerability | ||
| CVE-2018-14618 | Hig | 0.43 | 7.5 | 0.11 | Sep 5, 2018 | curl before version 7.61.1 is vulnerable to a buffer overrun in the NTLM authentication code. The internal function Curl_ntlm_core_mk_nt_hash multiplies the length of the password by two (SUM) to figure out how large temporary storage area to allocate from the heap. The length… | ||
| CVE-2018-10840 | Med | 0.43 | 6.6 | 0.01 | Jul 16, 2018 | Linux kernel is vulnerable to a heap-based buffer overflow in the fs/ext4/xattr.c:ext4_xattr_set_entry() function. An attacker could exploit this by operating on a mounted crafted ext4 image. | ||
| CVE-2026-68580 | Hig | 0.42 | 7.5 | 0.00 | Aug 2, 2026 | FreeRDP before 3.29.0 contains integer overflow vulnerabilities in the audio input redirection channel (audin) across ALSA, sndio, WinMM, and OpenSL ES backends that fail to validate the FramesPerPacket parameter from RDP servers. Attackers can supply a malicious FramesPerPacket… | ||
| CVE-2026-66035 | Hig | 0.42 | 7.5 | 0.00 | Jul 24, 2026 | 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 smaller than the cipher's block size… | ||
| CVE-2026-40691 | Hig | 0.42 | 7.5 | 0.00 | Jul 22, 2026 | In Unbound 1.9.0 up to and including 1.25.1, when a DNSCrypt query is received over TCP, the routine that encrypts the reply in place fails to bound the reply length against the destination buffer size. The size clamp that protects the UDP path is not applied on the TCP path, so… | ||
| CVE-2026-53994 | Hig | 0.42 | 7.5 | 0.00 | Jul 18, 2026 | ProFTPD mod_sftp contains a heap-based buffer overflow reachable by an authenticated SFTP user. The fxp_packet_read() function accepts the attacker-supplied 32-bit big-endian SFTP packet length without a minimum sanity check. A value of 0 causes an unsigned subtraction elsewhere… | ||
| CVE-2026-56789 | Med | 0.42 | 6.5 | 0.00 | Jun 25, 2026 | RTKLIB through 2.4.3 contains a heap buffer overflow vulnerability in the readrnxobsb function in src/rinex.c that allows attackers to trigger memory corruption by failing to clamp satellite count values from RINEX epoch headers. Attackers can craft malicious RINEX files… | ||
| CVE-2026-12844 | Hig | 0.42 | 7.5 | 0.00 | Jun 25, 2026 | List::SomeUtils::XS versions before 0.59 for Perl have a heap buffer overflow in the pairwise function. pairwise() collects the values returned by the block into a heap buffer sized to the longer input array, then grows the buffer before each copy with a single quadrupling… | ||
| CVE-2026-11884 | Med | 0.42 | 6.5 | 0.00 | Jun 10, 2026 | 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… | ||
| CVE-2026-42536 | Hig | 0.42 | 7.5 | 0.01 | Jun 8, 2026 | Heap-based Buffer Overflow vulnerability in Apache HTTP Server with mod_xml2enc, xml2StartParse, and untrusted content This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue. | ||
| CVE-2026-34356 | Hig | 0.42 | 7.5 | 0.01 | Jun 8, 2026 | Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and ProxyPassReverseCookie* This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue. | ||
| CVE-2026-34355 | Hig | 0.42 | 7.5 | 0.01 | Jun 8, 2026 | A buffer overflow in mod_proxy_html in Apache HTTP Server 2.4.67 and earlier allows an attack by an untrusted backend. Users are recommended to upgrade to version 2.4.68, which fixes this issue. | ||
| CVE-2026-11143 | Med | 0.42 | 6.5 | 0.00 | Jun 4, 2026 | Out of bounds read in Extensions in Google Chrome on Linux prior to 149.0.7827.53 allowed an attacker who convinced a user to install a malicious extension to obtain potentially sensitive information from process memory via a crafted Chrome Extension. (Chromium security… | ||
| CVE-2026-10993 | Med | 0.42 | 6.5 | 0.00 | Jun 4, 2026 | Heap buffer overflow in Skia in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Medium) | ||
| CVE-2026-33633 | Hig | 0.42 | 7.5 | 0.00 | May 19, 2026 | Kitty is a cross-platform GPU based terminal. Versions 0.46.2 and below contain a heap buffer overflow in load_image_data() that allows any process which can write to the terminal's stdin to crash kitty immediately. The vulnerability is triggered by a single APC graphics… |
- risk 0.43cvss 6.6epss 0.01
Wireless Wide Area Network Service (WwanSvc) Elevation of Privilege Vulnerability
- risk 0.43cvss 6.6epss 0.01
Azure Service Fabric for Linux Remote Code Execution Vulnerability
- risk 0.43cvss 6.6epss 0.00
All versions of GE Digital CIMPLICITY that are not adhering to SDG guidance and accepting documents from untrusted sources are vulnerable to memory corruption issues due to insufficient input validation, including issues such as out-of-bounds reads and writes, use-after-free,…
- risk 0.43cvss 6.5epss 0.04
A heap-based buffer overflow vulnerability was found in Samba within the GSSAPI unwrap_des() and unwrap_des3() routines of Heimdal. The DES and Triple-DES decryption routines in the Heimdal GSSAPI library allow a length-limited write buffer overflow on malloc() allocated memory…
- risk 0.43cvss 6.6epss 0.01
Windows Boot Manager Security Feature Bypass Vulnerability
- risk 0.43cvss 7.5epss 0.11
curl before version 7.61.1 is vulnerable to a buffer overrun in the NTLM authentication code. The internal function Curl_ntlm_core_mk_nt_hash multiplies the length of the password by two (SUM) to figure out how large temporary storage area to allocate from the heap. The length…
- risk 0.43cvss 6.6epss 0.01
Linux kernel is vulnerable to a heap-based buffer overflow in the fs/ext4/xattr.c:ext4_xattr_set_entry() function. An attacker could exploit this by operating on a mounted crafted ext4 image.
- risk 0.42cvss 7.5epss 0.00
FreeRDP before 3.29.0 contains integer overflow vulnerabilities in the audio input redirection channel (audin) across ALSA, sndio, WinMM, and OpenSL ES backends that fail to validate the FramesPerPacket parameter from RDP servers. Attackers can supply a malicious FramesPerPacket…
- risk 0.42cvss 7.5epss 0.00
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 smaller than the cipher's block size…
- risk 0.42cvss 7.5epss 0.00
In Unbound 1.9.0 up to and including 1.25.1, when a DNSCrypt query is received over TCP, the routine that encrypts the reply in place fails to bound the reply length against the destination buffer size. The size clamp that protects the UDP path is not applied on the TCP path, so…
- risk 0.42cvss 7.5epss 0.00
ProFTPD mod_sftp contains a heap-based buffer overflow reachable by an authenticated SFTP user. The fxp_packet_read() function accepts the attacker-supplied 32-bit big-endian SFTP packet length without a minimum sanity check. A value of 0 causes an unsigned subtraction elsewhere…
- risk 0.42cvss 6.5epss 0.00
RTKLIB through 2.4.3 contains a heap buffer overflow vulnerability in the readrnxobsb function in src/rinex.c that allows attackers to trigger memory corruption by failing to clamp satellite count values from RINEX epoch headers. Attackers can craft malicious RINEX files…
- risk 0.42cvss 7.5epss 0.00
List::SomeUtils::XS versions before 0.59 for Perl have a heap buffer overflow in the pairwise function. pairwise() collects the values returned by the block into a heap buffer sized to the longer input array, then grows the buffer before each copy with a single quadrupling…
- risk 0.42cvss 6.5epss 0.00
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…
- risk 0.42cvss 7.5epss 0.01
Heap-based Buffer Overflow vulnerability in Apache HTTP Server with mod_xml2enc, xml2StartParse, and untrusted content This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue.
- risk 0.42cvss 7.5epss 0.01
Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and ProxyPassReverseCookie* This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue.
- risk 0.42cvss 7.5epss 0.01
A buffer overflow in mod_proxy_html in Apache HTTP Server 2.4.67 and earlier allows an attack by an untrusted backend. Users are recommended to upgrade to version 2.4.68, which fixes this issue.
- risk 0.42cvss 6.5epss 0.00
Out of bounds read in Extensions in Google Chrome on Linux prior to 149.0.7827.53 allowed an attacker who convinced a user to install a malicious extension to obtain potentially sensitive information from process memory via a crafted Chrome Extension. (Chromium security…
- risk 0.42cvss 6.5epss 0.00
Heap buffer overflow in Skia in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Medium)
- risk 0.42cvss 7.5epss 0.00
Kitty is a cross-platform GPU based terminal. Versions 0.46.2 and below contain a heap buffer overflow in load_image_data() that allows any process which can write to the terminal's stdin to crash kitty immediately. The vulnerability is triggered by a single APC graphics…