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
582 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-191page 12 of 12
- CVE-2026-69687HIGHCVSS 7.8EG 7.82026-09-08
Integer underflow (wrap or wraparound) in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally.
- CVE-2026-69824CRITICALCVSS 9.8EG 9.82026-09-08
Integer underflow (wrap or wraparound) in Microsoft Standard XPS allows an unauthorized attacker to execute code over a network.
- CVE-2026-69859HIGHCVSS 7.0EG 7.02026-09-08
Time-of-check time-of-use (toctou) race condition in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally.
- 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-2026-71202HIGHCVSS 7.5EG 7.52026-08-05
The raster Rust crate's crop function (src/editor.rs) clamps the crop width/height against source dimensions but only clamps the offset_x/offset_y parameters against 0, never against the source width/height.
- 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-2026-71389MEDIUMCVSS 6.2EG 6.22026-08-11
CAI Content Credentials is affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denia…
- CVE-2026-71401MEDIUMCVSS 5.3EG 5.32026-08-27
An integer underflow was found in the DHCPv4 packet capture code of wicked. ni_capture_inspect_udp_header() in src/capture.c does not verify that the IP total length field (ip_len) is at least as large as the IP header length (ihl) before …
- CVE-2026-71442HIGHCVSS 7.5EG 7.52026-08-25
CAI Content Credentials is affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denia…
- CVE-2026-71444MEDIUMCVSS 6.2EG 6.22026-08-25
CAI Content Credentials is affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denia…
- CVE-2026-72947MEDIUMCVSS 6.4EG 6.42026-09-08
Integer underflow (wrap or wraparound) in Windows File History Service allows an authorized attacker to elevate privileges locally.
- 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-2026-7423MEDIUMCVSS 5.3EG 5.32026-04-29
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…
- CVE-2026-7424HIGHCVSS 8.1EG 8.12026-04-29
Integer underflow in the DHCPv6 sub-option parser in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adjacent network actor to corrupt the device's IPv6 address assignment, DNS configuration, and lease times, and to cause a denial of …
- CVE-2026-76189MEDIUMCVSS 6.2EG 6.22026-08-25
CAI Content Credentials is affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denia…
- CVE-2026-7736HIGHCVSS 7.3EG 7.32026-05-04
A vulnerability was determined in osrg GoBGP up to 4.3.0. Affected by this vulnerability is the function parseRibEntry of the file pkg/packet/mrt/mrt.go. Executing a manipulation can lead to integer underflow. It is possible to launch the …
- CVE-2026-77488MEDIUMCVSS 5.5EG 5.52026-09-08
Integer underflow (wrap or wraparound) in SQL Server allows an authorized attacker to disclose information locally.
- 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-2026-78453MEDIUMCVSS 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-2026-81977MEDIUMCVSS 5.5EG 5.52026-09-08
Acrobat Reader is affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to disclose sensitive information. Exploitation of this …
- 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-2026-82480HIGHCVSS 7.4EG 7.42026-08-30
A security flaw has been discovered in NASA cFS up to 7.0.1. The affected element is the function CFE_SB_GetUserDataLength of the file src/cFS/cfe/modules/sb/fsw/src/cfe_sb_util.c of the component cFE Software Bus. Performing a manipulatio…
- CVE-2026-8463MEDIUMCVSS 5.3EG 5.32026-05-13
Crypt::Argon2 versions from 0.017 before 0.031 for Perl perform a heap out-of-bounds read in argon2_verify on empty encoded input. The auto-detect form of argon2_verify passes encoded_len - 1 as the length argument to memchr without check…
- CVE-2026-85436HIGHCVSS 7.5EG 7.52026-09-03
MOOS essential-moos through 10.0.1 contains a buffer overflow vulnerability in CMOOSUDPLink::ReadPktFromArray() that allows remote attackers to corrupt heap memory by sending UDP datagrams with negative declared lengths. Attackers can send…
- CVE-2026-89028HIGHCVSS 7.5EG 7.52026-09-16
MikroTik RouterOS before 7.24 contains a heap memory corruption vulnerability in the userspace SMB daemon that allows remote attackers to corrupt adjacent heap memory by supplying a crafted uniPwdLen value in the SMB1 SessionSetupAndX hand…
- CVE-2026-90996MEDIUMCVSS 4.0EG 4.02026-09-14
A flaw was found in sssd. A local unprivileged user could send a specially crafted request with a zero-length body to the Network Security Services (NSS) responder. This could lead to a denial-of-service condition, causing the NSS responde…
- CVE-2026-91103MEDIUMCVSS 5.1EG 5.12026-09-16
HP has identified and remediated multiple externally reported vulnerabilities within HPLIP. The findings affect several software components that could potentially enable remote code execution, privilege escalation, denial of service, infor…
- CVE-2026-91948HIGHCVSS 7.5EG 7.52026-09-15
FreeRDP versions before 3.31.0 contain an out-of-bounds write vulnerability in server-side static virtual channel handling when CHANNEL_OPTION_SHOW_PROTOCOL is enabled. Authenticated clients can queue oversized channel messages that cause …
- CVE-2026-93395MEDIUMCVSS 5.3EG 5.32026-09-17
A missing lower-bound validation in the bson_new_from_buffer() function of libbson allows an integer underflow when processing BSON data with a zero-length prefix. The function reads a 32-bit document length from the input buffer but does …
- CVE-2026-93599HIGHCVSS 7.5EG 7.52026-09-18
rustls-webpki through 0.103.12 (and 0.104.0-alpha releases before 0.104.0-alpha.7) contains a reachable panic in bit_string_flags() in src/der.rs. The input guard fails to reject a named-bit BIT STRING whose content is exactly [0x00] (zero…
- 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-2026-9624HIGHCVSS 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.
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