CVE-2026-54257

A flaw was found in Electron, a framework for building cross-platform desktop applications. The Buffer implementation performs incorrect byte length calculations, resulting in a heap buffer underflow or overflow. An attacker could exploit this flaw to cause an application crash or trigger incorre...

UBUNTU-CVE-2026-20214

A vulnerability in the FSG file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition, or possibly other expanded impacts, resulting from memory corruption on an affected device. This vulnerability is due to improper boundary checks for content in FSG...

TencentOS Server 2: libexif (TSSA-2026:0583)

The version of Tencent Linux installed on the remote TencentOS Server 2 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0583 advisory. Package updates are available for TencentOS Server 2 that fix the following vulnerabilities...

dnsmasq: RRSIG rdlen underflow leading to heap OOB read

A heap out-of-bounds read vulnerability was discovered in dnsmasq's DNSSEC validation. When processing RRSIG records, dnsmasq calculates the signature length by subtracting the fixed field size from the record's declared data length. A crafted RRSIG record with a data length smaller than the fixe...

gnutls: GnuTLS: Denial of Service via DTLS zero-length fragment

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 cause information disclosure or denial of service...

CVE-2026-6685

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority following a notification that the vulnerability determination was made in error. After review, the CNA confirmed the erroneous finding. Thanks to David Brown for reaching out about this issue...

Security Bulletin: Vulnerabilities in xorg-x11-server library (CVE-2026-33999, CVE-2026-34001, CVE-2026-34003) affect Power HMC.

Summary The xorg-x11-server library is used by Power Hardware Management Console HMC. HMC has addressed the applicable CVEs. Vulnerability Details CVEID:CVE-2026-33999 DESCRIPTION: A flaw was found in the X.Org X server. This integer underflow vulnerability, specifically in the XKB compatibility...

CVE-2026-6685

This CVE ID has been rejected or withdrawn by its CVE Numbering Authority following a notification that the vulnerability determination was made in error. After review, the CNA confirmed the erroneous finding. Thanks to David Brown for reaching out about this issue...

CVE-2026-6685

CVE-2026-6685 refers to an Integer Underflow in FatFs during dirty-sector cache flush when handling fragmented volumes. Affected software is FatFs R0.16 and earlier; the issue arises from an unsigned-subtraction wrap in cache handling (fp->sect vs. sect) during interleaved read/write, which ca...

EUVD-2026-40996

FatFs R0.16 and earlier exhibits a stale dirty-cache skip via unsigned-subtraction wrap in fread / fwrite fp-sect - sect cc during interleaved read/write on fragmented filesystems. This maps to CWE-191 Integer Underflow. Estimated CVSS v3.1 vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H 6.1...

CVE-2026-6685

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CVE-2026-6685

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Glib: integer underflow in gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml"

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SUSE CVE-2026-53130

In the Linux kernel, the following vulnerability has been resolved: fs/omfs: reject ssysblocksize smaller than OMFSDIRSTART omfsfillsuper rejects oversized ssysblocksize values PAGESIZE, but it does not reject values smaller than OMFSDIRSTART 0x1b8 = 440. Later, omfsmakeempty uses sbi-ssysblocksi...

FreeBSD : FreeBSD -- Jail reference count underflow (a65c31d1-74e0-11f1-958d-bc241121aa0a)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the a65c31d1-74e0-11f1-958d-bc241121aa0a advisory. When the JAILATDESC flag is specified, kernjailset and kernjailget released the reference to the caller...

PT-2026-54927

Name of the Vulnerable Software and Affected Versions FatFs versions R0.16 and earlier Description An integer underflow occurs during interleaved read and write operations on fragmented filesystems. This issue is caused by an unsigned-subtraction wrap in the f read and f write functions when...

glib2 security update

2.56.1-9.0.5 - Fixes CVE-2025-14078 gvariant parser buffer underflow Orabug: 39418716 2.56.1-9.0.3 - Fixes CVE-2025-13601 gescapeuristring overflow Orabug: 38909821 2.56.1-9.0.1 - Fix overflow of GDBusConnection serial Orabug: 38666376...

Alibaba Cloud Linux 3 : 0162: opencryptoki (ALINUX3-SA-2026:0162)

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by a vulnerability as referenced in the ALINUX3-SA-2026:0162 advisory. Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities: CVE-2026-40253: openCryptoki is a PKCS11 library an...

WolfSSL wolfSSL PKCS#7 OtherRecipientInfo integer underflow vulnerability

Summary A integer underflow vulnerability exists in the PKCS7 OtherRecipientInfo functionality of wolfSSL versions: 5.9.1. A specially crafted malformed ASN.1 record can lead to a heap buffer overflow. An attacker can arbitrary code execution to trigger this vulnerability. Confirmed Vulnerable...

[SECURITY] [DLA 4658-1] librabbitmq security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-4658-1 [email protected] https://www.debian.org/lts/security/ Chris Lamb June 30, 2026 https://wiki.debian.org/LTS -...