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CVE-2026-89606

ecryptfs: reject too-small tag 70 packets

In the Linux kernel, the following vulnerability has been resolved: ecryptfs: reject too-small tag 70 packets ecryptfs_parse_tag_70_packet() subtracts fixed metadata fields from the parsed packet body size to derive the encrypted filename size. A malformed packet with a body smaller than those fixed fields can underflow that size calculation. Reject tag 70 packets before the subtraction unless the body contains the signature, cipher code, and at least one byte of encrypted filename data.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Linux
Products
Linux Kernel
CVE-2026-89593

hugetlb: only adjust reservation during unmapping if mapcount is 0

In the Linux kernel, the following vulnerability has been resolved: hugetlb: only adjust reservation during unmapping if mapcount is 0 Since df7a6d1f6405, __unmap_hugepage_range can adjust reservations. In the case of folio mapped in both a parent and a child, if the parent unmaps the range first, the reservation adjustment will result in an underflow of the reserved count. Once the child unmaps the range, the count is restored. Change __unmap_hugepage_range() to check the mapcount before adjusting the reservation.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Linux
Products
Linux Kernel
CVE-2026-78453

Microsoft Windows SCSI Class System File Information Disclosure Vulnerability

Integer underflow (wrap or wraparound) in Microsoft Windows SCSI Class System File allows an unauthorized attacker to disclose information over a network.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more
CVE-2026-81977

Acrobat Reader | Integer Underflow (Wrap or Wraparound) (CWE-191)

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 issue requires user interaction in that a victim must open a malicious file.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Adobe Apple Microsoft
Products
Acrobat Acrobat 2024 Acrobat Dc and 4 more
CVE-2026-13326

Out-of-bounds read and integer underflow vulnerability in QNdefNfcTextRecord impacts Qt NFC module

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.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Vendors
Qt
Products
Qt
CVE-2026-66767

Memory Corruption vulnerability in SAP NetWeaver Application Server for ABAP and ABAP Platform

SAP NetWeaver Application Server for ABAP and ABAP Platform allows an unauthenticated user to send a specially crafted packet that triggers reprocessing of a previously buffered user request, potentially hijacking another user's session under narrow timing conditions. Successful exploitation could result in high impact on confidentiality and integrity, with low impact on availability of the application.

CVSS 3.1 · 7.7 High EPSS < 1% KEV · Not listed
Vendors
Sap Se
Products
Sap Netweaver Application Server Abap And Abap Platform
CVE-2026-18916

Remote TCP DoS by throttling the TCP receive window

Any remote client can crash a NSD serve child, by throttling the TCP receive window after a TCP query. By continuously crashing the serve childs, the remote client can denial all TCP service to this NSD instance.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Vendors
Nlnetlabs
Products
Nsd
CVE-2026-18341

IBM i is Affected By Buffer Overflow Vulnerability []

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.

CVSS 3.1 · 6.3 Medium EPSS < 1% KEV · Not listed
Vendors
Ibm
Products
I
CVE-2026-64361

hfs/hfsplus: fix u32 overflow in check_and_correct_requested_length

In the Linux kernel, the following vulnerability has been resolved: hfs/hfsplus: fix u32 overflow in check_and_correct_requested_length check_and_correct_requested_length() compares (off + len) against node_size using u32 arithmetic. When the caller passes a large len value (e.g. from an underflowed subtraction in hfs_brec_remove()), off + len can wrap past 2^32 and produce a small result, causing the bounds check to pass when it should fail. For example, with off=14 and len=0xFFFFFFF2 (underflowed from data_off - keyoffset - size in hfs_brec_remove), off + len wraps to 6, which is less than a typical node_size of 512, so the check passes and the subsequent memmove reads ~4GB past the node buffer. Fix this by widening the addition to u64 before comparing against node_size. This prevents the u32 wrap while keeping the logic straightforward.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Linux
Products
Linux Kernel
CVE-2026-71401

wicked: integer underflow of the UDP length in ni_capture_inspect_udp_header() leads to an out-of-bounds read

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 subtracting the header length. An unauthenticated attacker on the same network can thereby trigger an out-of-bounds read past the receive buffer in the wicked DHCPv4 client (wickedd-dhcp4), which can crash the daemon depending on the process memory layout. No information disclosure has been demonstrated. This issue affects wicked up to and including version 0.6.80.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Suse
Products
Wicked
CVE-2026-9624

RSLinx Classic® - Multiple Vulnerabilities

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.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Rockwell Automation Rockwellautomation
Products
Rslinx Classic Rslinx Classic
CVE-2026-71442

CAI Content Credentials | Integer Underflow (Wrap or Wraparound) (CWE-191)

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 denial-of-service condition. Exploitation of this issue does not require user interaction.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Adobe
Products
C2pa C2patool
CVE-2026-71444

CAI Content Credentials | Integer Underflow (Wrap or Wraparound) (CWE-191)

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 denial-of-service condition. Exploitation of this issue does not require user interaction.

CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Vendors
Adobe
Products
C2pa C2patool
CVE-2026-76189

CAI Content Credentials | Integer Underflow (Wrap or Wraparound) (CWE-191)

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 denial-of-service condition. Exploitation of this issue does not require user interaction.

CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Vendors
Adobe
Products
C2pa C2patool
CVE-2026-54754

Klever-Go: Marketplace settlement mints KLV when referral % + royalty % exceed the bid (negative seller share silently skipped)

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.MarketPercentage live at purchase time. An asset owner can create a valid listing and then use AssetTrigger UpdateRoyalties to make the combined referral and royalty percentages exceed the bid. executeBuyMarket pays referral and royalty amounts unconditionally while computeMarketOwnerAmount silently skips a nonpositive seller remainder, allowing MarketBuy, BuyItNow, or auction Claim settlement to credit more KLV or sale currency than the buyer paid. This can create unbacked currency and corrupt token supply integrity. This issue is fixed in version 1.7.19.

CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed
Vendors
Klever-io
Products
Klever-go
CVE-2026-82480

NASA cFS cFE Software Bus cfe_sb_util.c CFE_SB_GetUserDataLength integer underflow

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 manipulation of the argument TotalMsgSize/HdrSize results in integer underflow. It is possible to initiate the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Nasa
Products
Cfs
CVE-2026-58087

Heap out-of-bounds access in semctl(2)

The GETALL and SETALL commands in semctl(2) recorded the number of semaphores in the target set, dropped the lock protecting the set, allocated a buffer sized for that count, and reacquired the lock. A sequence-number check was used to verify that the set had not been replaced in the interim, but the sequence number wraps after 0x8000 create/destroy cycles. By rapidly destroying and recreating semaphore sets at the same index, another process can cause the sequence number to wrap, allowing a set with a different number of semaphores to pass validation. The subsequent copy then reads or writes past the end of the allocated buffer. An unprivileged local user can trigger out-of-bounds reads and writes on kernel heap memory, potentially leading to privilege escalation.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Freebsd
Products
Freebsd