CWE-191— Integer Underflow
The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.— MITRE CWE catalog
675 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-191page 3 of 14
- CVE-2026-85339HIGHCVSS 8.8EG 8.82026-10-13
Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access to victim's machine
- CVE-2026-83742HIGHCVSS 8.8EG 8.82026-10-07
Unsigned integer underflow in wstrncat() in src/port.c in wolfSSL wolfSSH from v1.4.11 through v1.5.0 on non-Windows platforms allows an authenticated remote attacker to write one out-of-bounds null byte past the end of a stack buffer by s…
- CVE-2026-71352HIGHCVSS 8.8EG 8.82026-09-08
Integer underflow (wrap or wraparound) in Windows Remote Access Connection Manager allows an authorized attacker to execute code over a network.
- CVE-2026-18341HIGHCVSS 8.8EG 8.82026-09-04
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to corrupt memory due to an integer underflow.
- CVE-2026-16996HIGHCVSS 8.8EG 8.82026-08-20
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to execute arbitrary code due to an integer underflow.
- CVE-2026-72003HIGHCVSS 8.8EG 8.82026-08-15
In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: cyw: fix heap overflow on a short auth frame brcmf_notify_auth_frame_rx() takes the frame length from the firmware event and copies the frame body with t…
- CVE-2026-45813HIGHCVSS 8.8EG 8.82026-07-24
Out-of-bounds Write, Integer Underflow (Wrap or Wraparound) vulnerability in Apache NimBLE BASS service. Improper validation when parsing BASS service "Add Source" and "Modify Source" operation PDU could results in stack buffer overflow …
- CVE-2026-54982HIGHCVSS 8.8EG 8.82026-07-14
Integer underflow (wrap or wraparound) in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over an adjacent network.
- CVE-2026-43187HIGHCVSS 8.8EG 8.82026-05-06
In the Linux kernel, the following vulnerability has been resolved: xfs: delete attr leaf freemap entries when empty Back in commit 2a2b5932db6758 ("xfs: fix attr leaf header freemap.size underflow"), Brian Foster observed that it's poss…
- CVE-2026-3538HIGHCVSS 8.8EG 8.82026-03-04
Integer overflow in Skia in Google Chrome prior to 145.0.7632.159 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page. (Chromium security severity: Critical)
- CVE-2025-62495HIGHCVSS 8.8EG 8.82025-10-16
An integer overflow vulnerability exists in the QuickJS regular expression engine (libregexp) due to an inconsistent representation of the bytecode buffer size. * The regular expression bytecode is stored in a DynBuf structure, which c…
- CVE-2024-11950HIGHCVSS 8.8EG 8.82024-12-12
XnSoft XnView Classic RWZ File Parsing Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of XnSoft XnView Classic. User interaction is requ…
- CVE-2023-42118HIGHCVSS 8.8EG 8.82024-05-03
Exim libspf2 Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Exim libspf2. Authentication is not required to exploit this vu…
- CVE-2024-28945HIGHCVSS 8.8EG 8.82024-04-09
Microsoft OLE DB Driver for SQL Server Remote Code Execution Vulnerability
- CVE-2024-28933HIGHCVSS 8.8EG 8.82024-04-09
Microsoft ODBC Driver for SQL Server Remote Code Execution Vulnerability
- CVE-2024-28930HIGHCVSS 8.8EG 8.82024-04-09
Microsoft ODBC Driver for SQL Server Remote Code Execution Vulnerability
- CVE-2024-26244HIGHCVSS 8.8EG 8.82024-04-09
Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution Vulnerability
- CVE-2024-24474HIGHCVSS 8.8EG 8.82024-02-20
QEMU before 8.2.0 has an integer underflow, and resultant buffer overflow, via a TI command when an expected non-DMA transfer length is less than the length of the available FIFO data. This occurs in esp_do_nodma in hw/scsi/esp.c because o…
- CVE-2023-5753HIGHCVSS 8.8EG 8.82023-10-25
Potential buffer overflows in the Bluetooth subsystem due to asserts being disabled in /subsys/bluetooth/host/hci_core.c
- CVE-2023-35387HIGHCVSS 8.8EG 8.82023-08-08
Windows Bluetooth A2DP driver Elevation of Privilege Vulnerability
- CVE-2023-24887HIGHCVSS 8.8EG 8.82023-04-11
Microsoft PostScript and PCL6 Class Printer Driver Remote Code Execution Vulnerability
- CVE-2023-24864HIGHCVSS 8.8EG 8.82023-03-14
Microsoft PostScript and PCL6 Class Printer Driver Elevation of Privilege Vulnerability
- CVE-2023-21684HIGHCVSS 8.8EG 8.82023-02-14
Microsoft PostScript and PCL6 Class Printer Driver Remote Code Execution Vulnerability
- CVE-2023-21681HIGHCVSS 8.8EG 8.82023-01-10
Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution Vulnerability
- CVE-2022-24046HIGHCVSS 8.8EG 8.82022-02-18
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sonos One Speaker prior to 3.4.1 (S2 systems) and 11.2.13 build 57923290 (S1 systems). Authentication is not required to exploit th…
- CVE-2021-4066HIGHCVSS 8.8EG 8.82021-12-23
Integer underflow in ANGLE in Google Chrome prior to 96.0.4664.93 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
- CVE-2021-43083HIGHCVSS 8.8EG 8.82021-12-19
Apache PLC4X - PLC4C (Only the C language implementation was effected) was vulnerable to an unsigned integer underflow flaw inside the tcp transport. Users should update to 0.9.1, which addresses this issue. However, in order to exploit th…
- CVE-2021-21897HIGHCVSS 8.8EG 8.82021-09-08
A code execution vulnerability exists in the DL_Dxf::handleLWPolylineData functionality of Ribbonsoft dxflib 3.17.0. A specially-crafted .dxf file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this…
- CVE-2021-20240HIGHCVSS 8.8EG 8.82021-05-28
A flaw was found in gdk-pixbuf in versions before 2.42.0. An integer wraparound leading to an out of bounds write can occur when a crafted GIF image is loaded. An attacker may cause applications to crash or could potentially execute code o…
- CVE-2020-1239HIGHCVSS 8.8EG 8.82020-06-09
A memory corruption vulnerability exists when Windows Media Foundation improperly handles objects in memory, aka 'Media Foundation Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2020-1238.
- CVE-2017-18170HIGHCVSS 8.8EG 8.82018-10-23
Improper input validation in Bluetooth Controller function can lead to possible memory corruption in Snapdragon Mobile in version QCA9379, SD 210/SD 212/SD 205, SD 410/12, SD 425, SD 427, SD 430, SD 435, SD 450, SD 615/16/SD 415, SD 625, S…
- CVE-2018-14325HIGHCVSS 8.8EG 8.82018-07-16
In MP4v2 2.0.0, there is an integer underflow (with resultant memory corruption) when parsing MP4Atom in mp4atom.cpp.
- CVE-2017-14796HIGHCVSS 8.8EG 8.82017-09-28
The hevc_write_frame function in libbpg.c in libbpg 0.9.7 allows remote attackers to cause a denial of service (integer underflow and application crash) or possibly have unspecified other impact via a crafted BPG file, related to improper …
- CVE-2019-5144HIGHCVSS 8.1EG 8.82019-12-12
An exploitable heap underflow vulnerability exists in the derive_taps_and_gains function in kdu_v7ar.dll of Kakadu Software SDK 7.10.2. A specially crafted jp2 file can cause a heap overflow, which can result in remote code execution. An a…
- CVE-2022-2869HIGHCVSS 5.5EG 8.82022-08-17
libtiff's tiffcrop tool has a uint32_t underflow which leads to out of bounds read and write in the extractContigSamples8bits routine. An attacker who supplies a crafted file to tiffcrop could trigger this flaw, most likely by tricking a u…
- CVE-2022-2867HIGHCVSS 5.5EG 8.82022-08-17
libtiff's tiffcrop utility has a uint32_t underflow that can lead to out of bounds read and write. An attacker who supplies a crafted file to tiffcrop (likely via tricking a user to run tiffcrop on it with certain parameters) could cause a…
- CVE-2026-111075HIGHCVSS 8.7EG 8.72026-10-21
In Eclipse OpenJ9 versions prior to 0.63.0, the JITServer component fails to perform cross-field validation on attacker-controlled `_size`, `_paddingSize`, and `_dataOffset` fields during `DataDescriptor` message deserialization. An unauth…
- CVE-2026-92853HIGHCVSS 8.7EG 8.72026-10-20
The TLS 1.3 Certificate-message parser in NetX Secure decrements the message length to skip a context byte without first establishing that the message has a byte to skip. A zero-length Certificate message therefore wraps the unsigned lengt…
- CVE-2026-106464HIGHCVSS 8.7EG 8.72026-10-14
`_nx_secure_x509_parse_signature_data` computes the certificate signature's length as `tlv_length - 1` without first checking that `tlv_length` is non-zero. A certificate whose signature is an empty ASN.1 BIT STRING therefore parses succes…
- CVE-2026-86537HIGHCVSS 8.7EG 8.72026-10-02
Uncaught exception, Loop with unreachable exit condition ('infinite loop'), Integer underflow (wrap or wraparound) vulnerability in Apache Thrift D language bindings. This issue affects Apache Thrift: before 0.25.0. Users are recomme…
- CVE-2026-9624HIGHCVSS 8.7EG 8.72026-09-01
A denial-of-service security issue exists within RSLinx® Classic. A crafted CIP packet can cause the RSLinx® Classic service to crash due to insufficient data length validation, requiring a restart of the service to recover.
- CVE-2026-9622HIGHCVSS 8.7EG 8.72026-09-01
A denial-of-service security issue exists within RSLinx® Classic. A crafted CIP packet targeting the Forward Close service can cause the RSLinx® Classic service to crash, requiring a restart of the service to recover.
- CVE-2026-19314HIGHCVSS 8.7EG 8.72026-08-27
An integer underflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to create a Denial of Service (DoS) condition in VPN processing by sending specially crafted network traffic.
- CVE-2026-19317HIGHCVSS 8.7EG 8.72026-08-27
An out-of-bounds read vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to create a Denial of Service (DoS) condition in VPN processing by sending specially crafted network traffic.
- CVE-2026-78011HIGHCVSS 8.7EG 8.72026-08-27
An integer underflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to create a Denial of Service (DoS) condition in VPN processing by sending specially crafted network traffic.
- CVE-2026-43916HIGHCVSS 8.7EG 8.72026-05-12
pam_authnft is a PAM session module binding nftables firewall rules to authenticated sessions via cgroupv2 inodes. Prior to 0.2.0-alpha, a heap buffer over-read in peer_lookup_tcp (src/peer_lookup.c:134, prior to the fix) allowed a crafted…
- CVE-2026-111808HIGHCVSS 8.6EG 8.62026-10-21
Apache Traffic Server can be used to exhaust an HTTP/1.1 origin's worker pool via a malformed padded HTTP/2 DATA frame. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.15, from 10.0.0 through …
- CVE-2022-39293HIGHCVSS 8.6EG 8.62022-10-13
Azure RTOS USBX is a high-performance USB host, device, and on-the-go (OTG) embedded stack, that is fully integrated with Azure RTOS ThreadX. The case is, in [_ux_host_class_pima_read](https://github.com/azure-rtos/usbx/blob/master/common/…
- CVE-2017-14496HIGHCVSS 7.5EG 8.52017-10-03
Integer underflow in the add_pseudoheader function in dnsmasq before 2.78 , when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service via a crafted DNS request.
- CVE-2026-45463HIGHCVSS 8.4EG 8.42026-06-09
Integer underflow (wrap or wraparound) in Microsoft Office allows an unauthorized attacker to execute code locally.
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