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 10 of 14
- CVE-2025-49744HIGHCVSS 7.0EG 7.02025-07-08
Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.
- CVE-2023-39414HIGHCVSS 7.0EG 7.02024-01-08
Multiple integer underflow vulnerabilities exist in the LXT2 lxt2_rd_iter_radix shift operation functionality of GTKWave 3.3.115. A specially crafted .lxt2 file can lead to memory corruption. A victim would need to open a malicious file to…
- CVE-2023-39413HIGHCVSS 7.0EG 7.02024-01-08
Multiple integer underflow vulnerabilities exist in the LXT2 lxt2_rd_iter_radix shift operation functionality of GTKWave 3.3.115. A specially crafted .lxt2 file can lead to memory corruption. A victim would need to open a malicious file to…
- CVE-2019-9755HIGHCVSS 7.0EG 7.02019-06-05
An integer underflow issue exists in ntfs-3g 2017.3.23. A local attacker could potentially exploit this by running /bin/ntfs-3g with specially crafted arguments from a specially crafted directory to cause a heap buffer overflow, resulting …
- CVE-2026-13326MEDIUMCVSS 6.9EG 6.92026-09-11
An out-of-bounds read in Qt NFC's language code length parsing allows a physically proximate attacker to cause a denial of service or limited memory disclosure via a crafted NFC tag.
- CVE-2025-65092MEDIUMCVSS 6.9EG 6.92025-11-21
ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.1, 5.4.3, and 5.3.4, when the ESP32-P4 uses its hardware JPEG decoder, the software parser lacks necessary validation checks. A specially crafted (mal…
- CVE-2026-18747MEDIUMCVSS 6.8EG 6.82026-09-28
The MCUmgr SMP-over-console transport decodes a base64 frame, reads a 16-bit packet length from it, verifies a CRC and then unconditionally strips the trailing CRC with rx_ctxt->nb->len -= 2U; in mcumgr_serial_process_frag() (subsys/mgmt/m…
- CVE-2026-28525MEDIUMCVSS 6.8EG 6.82026-04-23
SWUpdate contains an integer underflow vulnerability in the multipart upload parser in mongoose_multipart.c that allows unauthenticated attackers to cause a denial of service by sending a crafted HTTP POST request to /upload with a malform…
- CVE-2024-49077MEDIUMCVSS 6.8EG 6.82024-12-12
Windows Mobile Broadband Driver Elevation of Privilege Vulnerability
- CVE-2024-6258MEDIUMCVSS 6.8EG 6.82024-09-13
BT: Missing length checks of net_buf in rfcomm_handle_data
- CVE-2024-3077MEDIUMCVSS 6.8EG 6.82024-03-29
An malicious BLE device can crash BLE victim device by sending malformed gatt packet
- CVE-2015-5212MEDIUMCVSS v2 6.8EG 6.82015-11-10
Integer underflow in LibreOffice before 4.4.5 and Apache OpenOffice before 4.1.2, when the configuration setting "Load printer settings with the document" is enabled, allows remote attackers to cause a denial of service (memory corruption …
- CVE-2011-4031MEDIUMCVSS v2 6.8EG 6.82012-05-09
Integer underflow in the asfrtp_parse_packet function in libavformat/rtpdec_asf.c in FFmpeg before 0.8.3 allows remote attackers to execute arbitrary code via a crafted ASF packet.
- CVE-2010-2497MEDIUMCVSS v2 6.8EG 6.82010-08-19
Integer underflow in glyph handling in FreeType before 2.4.0 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted font file.
- CVE-2026-20576MEDIUMCVSS 6.7EG 6.72026-11-02
In afe, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation…
- CVE-2026-20572MEDIUMCVSS 6.7EG 6.72026-11-02
In adsp, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. …
- CVE-2024-26828MEDIUMCVSS 6.7EG 6.72024-04-17
In the Linux kernel, the following vulnerability has been resolved: cifs: fix underflow in parse_server_interfaces() In this loop, we step through the buffer and after each item we check if the size_left is greater than the minimum size …
- CVE-2022-30787MEDIUMCVSS 6.7EG 6.72022-05-26
An integer underflow in fuse_lib_readdir enables arbitrary memory read operations in NTFS-3G through 2021.8.22 when using libfuse-lite.
- CVE-2026-73433MEDIUMCVSS 6.6EG 6.62026-08-12
A flaw was found in GStreamer gst-plugins-good (avidemux). When parsing FUJIFILM metadata in an AVI strd chunk, gst_avi_demux_parse_strd() decrements a remaining-length counter by fixed offsets (98 and 10 bytes) without verifying sufficien…
- CVE-2022-20073MEDIUMCVSS 6.6EG 6.62022-04-11
In preloader (usb), there is a possible out of bounds write due to a integer underflow. This could lead to local escalation of privilege, for an attacker who has physical access to the device, with no additional execution privileges needed…
- CVE-2026-86566MEDIUMCVSS 6.5EG 6.52026-10-14
A flaw was found in DPDK lib/vhost. A guest with runt RX descriptors can underflow the copy length in vhost enqueue, causing a denial of service in a shared vhost backend such as OVS-DPDK.
- CVE-2026-101938MEDIUMCVSS 6.5EG 6.52026-10-14
An Integer Underflow (Wrap or Wraparound) vulnerability in the srxpfe of Juniper Networks Junos OS and Junos OS Evolved on the SRX Series allows an adjacent unauthenticated attacker to cause a forwarding-plane denial of service via an ICMP…
- CVE-2026-110714MEDIUMCVSS 6.5EG 6.52026-10-14
libsmb2 through 6.2 contains an integer underflow vulnerability in decode_acl that allows malicious SMB servers to trigger heap out-of-bounds reads via crafted security descriptors. Attackers controlling a server or intercepting unsigned s…
- CVE-2026-88195MEDIUMCVSS 6.5EG 6.52026-10-13
Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
- CVE-2026-88833MEDIUMCVSS 6.5EG 6.52026-10-13
A flaw was found in BusyBox's udhcpc DHCP client. When processing raw DHCP packets, the client replaces the validated packet length with an attacker-controlled value from the IP header without re-validating the minimum size. This leads to …
- CVE-2026-53922MEDIUMCVSS 6.5EG 6.52026-10-12
odhcpd is the DHCPv6, DHCPv4, and router-advertisement server used by OpenWrt. In commit cfddd56 and earlier, an unauthenticated host on the same link can first obtain two bindings through normal DHCPv6 SOLICIT and REQUEST exchanges and th…
- CVE-2026-109246MEDIUMCVSS 6.5EG 6.52026-10-12
FreeRDP before 3.32.0 contains a divide-by-zero vulnerability in the freerdp-shadow-cli shadow server: the frame id in a client's Frame Acknowledge PDU is stored without a range check, so the in-flight frame count in shadow_encoder_infligh…
- CVE-2026-106429MEDIUMCVSS 6.5EG 6.52026-10-08
An integer underflow in the KMS endpoint-parsing logic of MongoDB libmongocrypt can cause an allocation failure that terminates the application process. This can occur when an authenticated user modifies a key document in the key vault col…
- CVE-2026-102168MEDIUMCVSS 6.5EG 6.52026-10-06
On affected Arista Wi-Fi access points with Captive Portal enabled, an unauthenticated wireless client connected to a Captive-Portal-enabled SSID can crash the portal service with a crafted HTTP request. This results in a temporary denial …
- CVE-2026-44235MEDIUMCVSS 6.5EG 6.52026-09-17
rabbitmq-c is a C-language AMQP client library for RabbitMQ. Prior to 0.16.0, a malicious AMQP server can send an undersized HEADER or METHOD frame during client login and cause unsigned size_t underflow in amqp_handle_input() in librabbit…
- CVE-2026-78453MEDIUMCVSS 6.5EG 6.52026-09-08
Integer underflow (wrap or wraparound) in Microsoft Windows SCSI Class System File allows an unauthorized attacker to disclose information over a network.
- CVE-2026-82250MEDIUMCVSS 6.5EG 6.52026-08-28
gitoxide gix-packetline versions before 0.21.5 contain a panic vulnerability in the TextRef implementation that occurs when processing side-band packet lines with empty payloads. A malicious Git server can send a crafted side-band packet t…
- CVE-2026-18728MEDIUMCVSS 6.5EG 6.52026-08-13
A flaw was found in open-iscsi. An integer underflow vulnerability in the `iscsiuio` component, specifically during IPv4 Dynamic Host Configuration Protocol (DHCP) parsing, allows a remote attacker on the same local network segment to caus…
- CVE-2026-18727MEDIUMCVSS 6.5EG 6.52026-08-12
A flaw was found in open-iscsi's iscsiuio component. This vulnerability involves an integer underflow and out-of-bounds read during Dynamic Host Configuration Protocol for IPv6 (DHCPv6) packet parsing. Specifically, crafted DHCPv6 Advertis…
- CVE-2026-62814MEDIUMCVSS 6.5EG 6.52026-08-11
Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
- CVE-2026-62714MEDIUMCVSS 6.5EG 6.52026-08-11
Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
- CVE-2026-62720MEDIUMCVSS 6.5EG 6.52026-08-11
Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
- CVE-2026-62745MEDIUMCVSS 6.5EG 6.52026-08-11
Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
- CVE-2026-62742MEDIUMCVSS 6.5EG 6.52026-08-11
Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
- CVE-2026-62716MEDIUMCVSS 6.5EG 6.52026-08-11
Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
- CVE-2026-62715MEDIUMCVSS 6.5EG 6.52026-08-11
Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
- CVE-2026-62718MEDIUMCVSS 6.5EG 6.52026-08-11
Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
- CVE-2026-70633MEDIUMCVSS 6.5EG 6.52026-08-06
TimescaleDB through 2.29.1, fixed in commit 517c13e, contains an out-of-bounds read vulnerability in the Gorilla compression reverse row iterator that allows authenticated attackers to cause a denial of service by storing a crafted compres…
- CVE-2026-24077MEDIUMCVSS 6.5EG 6.52026-08-04
Information Disclosure when processing wireless network channel switch information with improperly formatted length fields.
- CVE-2026-44251MEDIUMCVSS 6.5EG 6.52026-07-17
Wazuh is a free and open source platform used for threat prevention, detection, and response. In versions 3.0.0 and above, prior to 4.14.5, a size_t integer underflow in os_crypto/shared/msgs.c:389 allows any enrolled Wazuh agent to crash …
- CVE-2026-55490MEDIUMCVSS 6.5EG 6.52026-07-07
OpenWrt is a Linux operating system targeting embedded devices. Before v25.12.5, an integer underflow in handle_send_a() of the Emergency Access Daemon allows any unauthenticated attacker on the local network to crash the daemon by sending…
- CVE-2026-58058MEDIUMCVSS 6.5EG 6.52026-06-28
Nmap through 7.99 does not keep the IPv6 extension-header walk within the captured packet in ipv6_get_data_primitive (libnetutil/netutil.cc), so the pointer advances past the buffer and the remaining-length computation underflows to a larg…
- CVE-2026-11789MEDIUMCVSS 6.5EG 6.52026-06-09
A flaw was found in 389 Directory Server. The SMD5 password storage plugin performs unsigned integer underflow when computing salt length from a crafted password hash shorter than 16 bytes, causing a buffer over-read that crashes the LDAP …
- CVE-2026-35049MEDIUMCVSS 6.5EG 6.52026-06-02
wire-ios is an iOS client for the Wire secure messaging application. Prior to version 4.16.0, upon receiving a crafted malicious Proteus external message with an encrypted payload that is shorter than 16 bytes, the Wire iOS client crashes.…
- CVE-2026-7423MEDIUMCVSS 6.5EG 6.52026-04-29
Integer underflow in the ICMP and ICMPv6 echo reply handlers in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adjacent network user to cause a denial of service (device crash) when outgoing ping support is enabled, because header si…
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