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
678 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-191page 14 of 14
- CVE-2023-20635MEDIUMCVSS 4.4EG 4.42023-03-07
In keyinstall, there is a possible information disclosure due to an integer overflow. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS0…
- CVE-2026-62289MEDIUMCVSS 4.3EG 4.32026-08-18
libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted HEIF or AVIF file containing a clean aperture box can reduce an image dimension to zero and crash or corrupt tiling results when heif_image_handle…
- CVE-2024-50597MEDIUMCVSS 4.3EG 4.32025-04-02
An integer underflow vulnerability exists in the HTTP server PUT request functionality of STMicroelectronics X-CUBE-AZRTOS-WL 2.0.0. A specially crafted network packet can lead to denial of service. An attacker can send a malicious packet …
- CVE-2024-50596MEDIUMCVSS 4.3EG 4.32025-04-02
An integer underflow vulnerability exists in the HTTP server PUT request functionality of STMicroelectronics X-CUBE-AZRTOS-WL 2.0.0. A specially crafted network packet can lead to denial of service. An attacker can send a malicious packet …
- CVE-2024-50595MEDIUMCVSS 4.3EG 4.32025-04-02
An integer underflow vulnerability exists in the HTTP server PUT request functionality of STMicroelectronics X-CUBE-AZRTOS-WL 2.0.0. A specially crafted series of network requests can lead to denial of service. An attacker can send a seque…
- CVE-2024-50594MEDIUMCVSS 4.3EG 4.32025-04-02
An integer underflow vulnerability exists in the HTTP server PUT request functionality of STMicroelectronics X-CUBE-AZRTOS-WL 2.0.0. A specially crafted series of network requests can lead to denial of service. An attacker can send a seque…
- CVE-2025-2581MEDIUMCVSS 4.3EG 4.32025-03-21
A vulnerability has been found in xmedcon 0.25.0 and classified as problematic. Affected by this vulnerability is the function malloc of the component DICOM File Handler. The manipulation leads to integer underflow. The attack can be launc…
- CVE-2024-49103MEDIUMCVSS 4.3EG 4.32024-12-12
Windows Wireless Wide Area Network Service (WwanSvc) Information Disclosure Vulnerability
- CVE-2024-20474MEDIUMCVSS 4.3EG 4.32024-10-23
A vulnerability in Internet Key Exchange version 2 (IKEv2) processing of Cisco Secure Client Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) of Cisco Secure Client. This vulnerability is due t…
- CVE-2024-5256MEDIUMCVSS 4.3EG 4.32024-06-06
Sonos Era 100 SMB2 Message Handling Integer Underflow Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Sonos Era 100 smart speakers. A…
- CVE-2026-40386MEDIUMCVSS 4.0EG 4.02026-04-12
In libexif through 0.6.25, an integer underflow in size checking for Fuji and Olympus MakerNote decoding could be used by attackers to crash or leak information out of libexif-using programs.
- CVE-2026-44069LOWCVSS 3.9EG 3.92026-05-21
An integer underflow in the volxlate function in Netatalk 3.0.0 through 4.4.2 allows a local privileged user to obtain limited information, modify limited data, or cause a minor service disruption via crafted volume translation input.
- CVE-2026-16241LOWCVSS 3.8EG 3.82026-08-13
Integer underflow in PostgreSQL ECPG allows a database server administrator to achieve temporary denial of service against the ECPG client via sending a bytea value lacking the mandatory prefix. The client overwrites a huge memory region …
- CVE-2026-40955LOWCVSS 3.7EG 3.72026-07-15
CVE-2026-40955 is an integer underflow vulnerability in the traffic parsing function of Secure Access clients prior to 14.55. Attackers with intimate knowledge of and total control over the tunnel protocol can create a non-persistent DoS a…
- CVE-2026-40954LOWCVSS 3.7EG 3.72026-07-15
CVE-2026-40954 is an integer underflow vulnerability in the traffic parsing function of Secure Access clients prior to 14.55. Attackers with intimate knowledge of and total control over the tunnel protocol can create a non-persistent DoS a…
- CVE-2026-23748LOWCVSS 3.7EG 3.72026-02-26
Golioth Firmware SDK version 0.10.0 prior to 0.22.0, fixed in commit d7f55b38, contain an out-of-bounds read in LightDB State string parsing. When processing a string payload, a payload_size value less than 2 can cause a size_t underflow…
- CVE-2026-65200LOWCVSS 3.5EG 3.52026-10-13
The openUBMC device-management process parses PLDM-over-MCTP and NCSI-over-MCTP responses from on-bus devices, and three response parsers in the shared transport libraries subtract a fixed header or reserved-field size from a device-suppli…
- CVE-2026-58242LOWCVSS 3.5EG 3.52026-10-13
SAP Cloud Connector contains an improper authorization check, which could be exploited by a low-privileged attacker through specially crafted requests. Exploitation requires the attacker to be on an adjacent network. Successful exploitatio…
- CVE-2026-95958LOWCVSS 3.3EG 3.32026-09-23
A security flaw has been discovered in JusticeRage Manalyze 1.0.0. Impacted is the function PE::_parse_relocations of the file manape/pe.cpp of the component PE Parser. Performing a manipulation of the argument BlockSize results in integer…
- CVE-2023-28902LOWCVSS 3.3EG 3.32025-06-28
An integer underflow in the image processing binary of the MIB3 infotainment unit allows an attacker with local access to the vehicle to cause denial-of-service of the infotainment system. The vulnerability was originally discovered in Sko…
- CVE-2025-26269LOWCVSS 3.3EG 3.32025-04-17
DragonflyDB Dragonfly through 1.28.2 (fixed in 1.29.0) allows authenticated users to cause a denial of service (daemon crash) via a Lua library command that references a large negative integer.
- CVE-2020-14378LOWCVSS 3.3EG 3.32020-09-30
An integer underflow in dpdk versions before 18.11.10 and before 19.11.5 in the `move_desc` function can lead to large amounts of CPU cycles being eaten up in a long running loop. An attacker could cause `move_desc` to get stuck in a 4,294…
- CVE-2026-29776LOWCVSS 3.1EG 3.12026-03-13
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, Integer Underflow in update_read_cache_bitmap_order Function of FreeRDP's Core Library This vulnerability is fixed in 3.24.0.
- CVE-2025-49112LOWCVSS 3.1EG 3.12025-06-02
setDeferredReply in networking.c in Valkey through 8.1.1 has an integer underflow for prev->size - prev->used.
- CVE-2025-14055LOWCVSS 2.4EG 2.42026-02-20
An integer underflow vulnerability in Silicon Labs Secure NCP host implementation allows a buffer overread via a specially crafted packet.
- CVE-2025-14547LOWCVSS 2.3EG 2.32026-02-20
An integer underflow vulnerability is present in Silicon Lab’s implementation of PSA Crypto and SE Manager EC-JPAKE APIs during ZKP parsing. Triggering the underflow can lead to a hard fault, causing a temporary denial of service.
- CVE-2026-18839LOWCVSS 2.2EG 2.22026-08-05
An integer underflow was found in the popt library when formatting help text for option tables that exceed the terminal width. A local user who can cause an application to print help under those conditions may cause that application to cra…
- CVE-2010-4529LOWCVSS v2 2.1EG 2.12011-01-13
Integer underflow in the irda_getsockopt function in net/irda/af_irda.c in the Linux kernel before 2.6.37 on platforms other than x86 allows local users to obtain potentially sensitive information from kernel heap memory via an IRLMP_ENUMD…
Map vulnerabilities like CWE-191 to your infrastructure
EchelonGraph correlates every CVE — across CWE-191 and 150+ other weakness categories — against the assets you actually run. See blast radius, fix versions, and remediation steps in one graph.
Book a Demo →