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
608 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-191page 2 of 13
- CVE-2019-2245CRITICALCVSS 9.8EG 9.82019-05-24
Possible integer underflow can happen when calculating length of elementary stream map from invalid packet length which is later used to read from input buffer in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Con…
- CVE-2019-2244CRITICALCVSS 9.8EG 9.82019-05-24
Possible integer underflow can happen when calculating length of elementary stream info from invalid section length which is later used to read from input buffer in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon C…
- CVE-2018-11930CRITICALCVSS 9.8EG 9.82019-05-24
Improper input validation on input data which is used to locate and copy the additional IEs in WLAN function can lead to potential integer truncation issue in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industr…
- CVE-2019-10053CRITICALCVSS 9.8EG 9.82019-05-13
An issue was discovered in Suricata 4.1.x before 4.1.4. If the input of the function SSHParseBanner is composed only of a \n character, then the program runs into a heap-based buffer over-read. This occurs because the erroneous search for …
- CVE-2018-20181CRITICALCVSS 9.8EG 9.82019-03-15
rdesktop versions up to and including v1.8.3 contain an Integer Underflow that leads to a Heap-Based Buffer Overflow in the function seamless_process() and results in memory corruption and probably even a remote code execution.
- CVE-2018-20180CRITICALCVSS 9.8EG 9.82019-03-15
rdesktop versions up to and including v1.8.3 contain an Integer Underflow that leads to a Heap-Based Buffer Overflow in the function rdpsnddbg_process() and results in memory corruption and probably even a remote code execution.
- CVE-2018-20179CRITICALCVSS 9.8EG 9.82019-03-15
rdesktop versions up to and including v1.8.3 contain an Integer Underflow that leads to a Heap-Based Buffer Overflow in the function lspci_process() and results in memory corruption and probably even a remote code execution.
- CVE-2018-14817CRITICALCVSS 9.8EG 9.82018-09-26
Fuji Electric V-Server 4.0.3.0 and prior, An integer underflow vulnerability has been identified, which may allow remote code execution.
- CVE-2018-14353CRITICALCVSS 9.8EG 9.82018-07-17
An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. imap_quote_string in imap/util.c has an integer underflow.
- CVE-2015-9198CRITICALCVSS 9.8EG 9.82018-04-18
In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Automobile, Snapdragon Mobile, and Snapdragon Wear IPQ4019, MDM9206, MDM9607, MDM9625, MDM9635M, MDM9640, MDM9645, MDM9650, MDM9655, MSM8909W, SD 210/SD 21…
- CVE-2015-9167CRITICALCVSS 9.8EG 9.82018-04-18
In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Automobile and Snapdragon Mobile SD 410/12, SD 425, SD 430, SD 450, SD 600, SD 615/16/SD 415, SD 617, SD 625, SD 650/52, SD 800, SD 808, SD 810, SD 820, an…
- CVE-2015-9129CRITICALCVSS 9.8EG 9.82018-04-18
In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Automobile, Snapdragon Mobile, and Snapdragon Wear MDM9206, MDM9650, MSM8909W, SD 210/SD 212/SD 205, SD 410/12, SD 425, SD 430, SD 450, SD 615/16/SD 415, S…
- CVE-2015-2311CRITICALCVSS 9.8EG 9.82017-08-09
Integer underflow in Sandstorm Cap'n Proto before 0.4.1.1 and 0.5.x before 0.5.1.1 might allow remote peers to cause a denial of service or possibly obtain sensitive information from memory or execute arbitrary code via a crafted message.
- CVE-2017-11757CRITICALCVSS 9.8EG 9.82017-07-31
Heap-based buffer overflow in Actian Pervasive PSQL v12.10 and Zen v13 allows remote attackers to execute arbitrary code via crafted traffic to TCP port 1583. The overflow occurs after Server-Client encryption-key exchange. The issue resul…
- CVE-2017-9214CRITICALCVSS 9.8EG 9.82017-05-23
In Open vSwitch (OvS) 2.7.0, while parsing an OFPT_QUEUE_GET_CONFIG_REPLY type OFP 1.0 message, there is a buffer over-read that is caused by an unsigned integer underflow in the function `ofputil_pull_queue_get_config_reply10` in `lib/ofp…
- CVE-2017-8911CRITICALCVSS 9.8EG 9.82017-05-12
An integer underflow has been identified in the unicode_to_utf8() function in tnef 1.4.14. This might lead to invalid write operations, controlled by an attacker.
- CVE-2016-10166CRITICALCVSS 9.8EG 9.82017-03-15
Integer underflow in the _gdContributionsAlloc function in gd_interpolation.c in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to have unspecified impact via vectors related to decrementing the u variable.
- CVE-2016-1925CRITICALCVSS 9.8EG 9.82017-01-23
Integer underflow in header.c in lha allows remote attackers to have unspecified impact via a large header size value for the (1) level0 or (2) level1 header in a lha archive, which triggers a buffer overflow.
- CVE-2005-0199CRITICALCVSS 9.8EG 9.82005-05-02
Integer underflow in the Lists_MakeMask() function in lists.c in ngIRCd before 0.8.2 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a long MODE line that causes an incorrect…
- CVE-2026-54754CRITICALCVSS 9.6EG 9.62026-08-28
Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, marketplace settlement in core/kapp/market/market.go reads MarketOrderData.ReferralPercentage from the listing while reading asset.Royalties.MarketPerce…
- CVE-2025-2523CRITICALCVSS 9.4EG 9.42025-07-10
The Honeywell Experion PKS and OneWireless WDM contains an Integer Underflow vulnerability in the component Control Data Access (CDA). An attacker could potentially exploit this vulnerability, leading to a Communication Channel M…
- CVE-2026-19318CRITICALCVSS 9.3EG 9.32026-08-27
A stack-based buffer overflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to execute arbitrary code by sending specially crafted network traffic.
- CVE-2024-57823CRITICALCVSS 9.3EG 9.32025-01-10
In Raptor RDF Syntax Library through 2.0.16, there is an integer underflow when normalizing a URI with the turtle parser in raptor_uri_normalize_path().
- CVE-2009-3301HIGHCVSS v2 9.3EG 9.32010-02-16
Integer underflow in filter/ww8/ww8par2.cxx in OpenOffice.org (OOo) before 3.2 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted sprmTDefTable table property modifier …
- CVE-2026-18670CRITICALCVSS 9.1EG 9.12026-08-20
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to cause a denial of service and potentially disclose sensitive information due to an integer underflow.
- CVE-2026-58016CRITICALCVSS 9.1EG 9.12026-06-30
A flaw was found in GLib. A state confusion issue exists in g_dbus_node_info_new_for_xml() in the gio/gdbusintrospection.c file when processing malformed D-Bus introspection XML, specifically with a `node` element nested within other eleme…
- CVE-2026-30803CRITICALCVSS 9.1EG 9.12026-06-17
Integer Underflow (Wrap or Wraparound) vulnerability in RTI Connext Micro (Core Libraries) allows Overread Buffers. This issue affects Connext Micro: from 4.0.0 before 4.3.0.
- CVE-2026-33845CRITICALCVSS 9.1EG 9.12026-04-30
A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read. This issue is remotely exploitable and may c…
- CVE-2026-2369CRITICALCVSS 9.1EG 9.12026-03-19
A flaw was found in libsoup. An integer underflow vulnerability occurs when processing content with a zero-length resource, leading to a buffer overread. This can allow an attacker to potentially access sensitive information or cause an ap…
- CVE-2024-10838CRITICALCVSS 9.1EG 9.12025-03-12
An integer underflow during deserialization may allow any unauthenticated user to read out of bounds heap memory. This may result into secret data or pointers revealing the layout of the address space to be included into a deserialized dat…
- CVE-2020-3634CRITICALCVSS 9.1EG 9.12020-09-09
u'Multiple Read overflows issue due to improper length check while decoding Generic NAS transport/EMM info' in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables…
- CVE-2021-31889CRITICALCVSS 7.5EG 9.12021-11-09
A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), PLUSCONTROL 1st Gen (All versions), SIMOTICS CONNECT 400 (All versions < V0.5.0.0). Malfo…
- CVE-2026-5720CRITICALCVSS 7.1EG 9.12026-04-17
miniupnpd contains an integer underflow vulnerability in SOAPAction header parsing that allows remote attackers to cause a denial of service or information disclosure by sending a malformed SOAPAction header with a single quote. Attackers …
- CVE-2020-36228CRITICALCVSS 7.5EG 9.02021-01-26
An integer underflow was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Certificate List Exact Assertion processing, resulting in denial of service.
- CVE-2020-36221CRITICALCVSS 7.5EG 9.02021-01-26
An integer underflow was discovered in OpenLDAP before 2.4.57 leading to slapd crashes in the Certificate Exact Assertion processing, resulting in denial of service (schema_init.c serialNumberAndIssuerCheck).
- CVE-2025-55118HIGHCVSS 8.9EG 8.92025-09-16
Memory corruptions can be remotely triggered in the Control-M/Agent when SSL/TLS communication is configured. The issue occurs in the following cases: * Control-M/Agent 9.0.20: SSL/TLS configuration is set to the non-default setting …
- CVE-2023-42118HIGHCVSS 8.8EG 8.92024-05-03
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-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-2026-45813HIGHCVSS 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-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
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