CVE-2026-64009 xfrm: Check for underflow in xfrm_state_mtu

In the Linux kernel, the following vulnerability has been resolved: xfrm: Check for underflow in xfrmstatemtu Leo Lin reported OOB write issue in esp component: xfrmstatemtu returns u32 but performs its arithmetic in unsigned modulo-2^32 space using an attacker-influenced "headerlen + authsize +...

SUSE SLES15: krb5 / krb5-32bit / krb5-client / krb5-devel / krb5-plugin-kdb-ldap / etc (SUSE-SU-2026:2847-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:2847-1 advisory. This update for krb5 fixes the following issue - CVE-2026-11850: integer underflow in berval2tldata leads to heap out-of-bounds read...

EUVD-2026-42332

U-Boot through 2026.04-rc3 contains an integer underflow vulnerability in the tcprxstatemachine function net/tcp.c that allows a network-adjacent attacker to crash the bootloader by sending a malformed TCP SYN+ACK packet with a manipulated data offset field causing payloadlen to become negative...

CVE-2026-58058

Nmap through 7.99 does not keep the IPv6 extension-header walk within the captured packet in ipv6getdataprimitive libnetutil/netutil.cc, so the pointer advances past the buffer and the remaining-length computation underflows to a large value. A scanned target or on-path attacker returning a craft...

Astra Linux – Vulnerability in freerdp3

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.0, there was an integer underflow issue in the updatereadcachebitmaporder function of FreeRDP’s core library. This vulnerability has been fixed in version 3.24.0...

CVE-2026-54413

driftregion iso14229 through 0.9.0 contains an integer underflow and downstream out-of-bounds read in the Handle0x27SecurityAccess function in iso14229.c that allows a remote unauthenticated attacker to crash a UDS server and potentially read memory past the receive buffer by sending a single-byt...

CVE-2026-11850

An integer underflow vulnerability was found in MIT krb5 in the berval2tldata function in plugins/kdb/ldap/libkdbldap/ldapprincipal2.c. The function performs an unsigned subtraction bvlen - 2 without a prior bounds check. When bvlen is 0 or 1, the subtraction wraps to a large value which is then...

CVE-2026-11824

SQLite before 3.53.2 contains a heap-based buffer overflow vulnerability in the FTS5 full-text search extension that allows attackers to cause a crash or execute arbitrary code by supplying a crafted database with malicious continuation page metadata specifying a szLeaf value smaller than 4...

CVE-2026-49494

Xcitium Client Security XCS before 13.8.2.10019 and Comodo Internet Security CIS through 12.3.4.8162 fix expected by 2026 Q3 contain an integer underflow vulnerability in the firewall driver Inspect.sys that allows remote unauthenticated attackers to crash the system by sending a crafted IPv6...

CVE-2026-44060

An integer underflow in dsiwriteinit in Netatalk 1.5.0 through 4.4.2 allows a remote unauthenticated attacker to cause a denial of service via a crafted DSI write request...

freerdp: FreeRDP: Denial of Service via crafted audio data in RDP

A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol RDP. A remote attacker can exploit a sizet underflow vulnerability in the IMA-ADPCM and MS-ADPCM audio decoders by sending specially crafted audio data over the RDPSND audio channel. This underflow leads to a...

freerdp: FreeRDP: Denial of Service via crafted audio data in RDP

A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol RDP. A remote attacker can exploit a sizet underflow vulnerability in the IMA-ADPCM and MS-ADPCM audio decoders by sending specially crafted audio data over the RDPSND audio channel. This underflow leads to a...

CLSA-2026-1778238329 gnutls: Fix of CVE-2026-33845

CVE-2026-33845: fix DTLS handshake parsing integer underflow leading to OOB read...

EUVD-2026-25993

In MIT Kerberos 5 aka krb5 before 1.22.3, there is an integer underflow and resultant out-of-bounds read if an application calls gssacceptseccontext on a system with a NegoEx mechanism registered in /etc/gss/mech. An unauthenticated remote attacker can trigger this, possibly causing the process t...

OESA-2026-1930 cups security update

CUPS is the standards-based, open source printing system developed by Apple Inc. for UNIX®-like operating systems. CUPS uses the Internet Printing Protocol IPP to support printing to local and network printers. Security Fixes: OpenPrinting CUPS is an open source printing system for Linux and othe...

PT-2026-31646

osslsigncode is a tool that implements Authenticode signing and timestamping. Prior to 2.13, an integer underflow vulnerability exists in osslsigncode version 2.12 and earlier in the PE page-hash computation code pe page hash calc. When page hash processing is performed on a PE file, the function...

CVE-2026-33184

The CVE affects the nimiq/core-rs-albatross Rust implementation of the Nimiq PoS Albatross protocol. Before 1.3.0, the discovery handshake allowed a peer-controlled limit to be stored, causing the HandshakeAck path to honor limit=0 and return zero contacts. After establishment, the periodic updat...

UBUNTU-CVE-2026-25075

strongSwan versions 4.5.0 prior to 6.0.5 contain an integer underflow vulnerability in the EAP-TTLS AVP parser that allows unauthenticated remote attackers to cause a denial of service by sending crafted AVP data with invalid length fields during IKEv2 authentication. Attackers can exploit the...

CVE-2026-1005 Integer underflow leads to out-of-bounds access in sniffer AES-GCM/CCM/ARIA-GCM decrypt path

Integer underflow in wolfSSL packet sniffer = 5.8.4 allows an attacker to cause a buffer overflow in the AEAD decryption path by injecting a TLS record shorter than the explicit IV plus authentication tag into traffic inspected by sslDecodePacket. The underflow wraps a 16-bit length to a large...

PT-2026-27175

Name of the Vulnerable Software and Affected Versions strongSwan versions 4.5.0 through 6.0.4 Description An integer underflow flaw exists in the EAP-TTLS AVP parser within strongSwan. This issue allows remote attackers to cause a denial of service by sending specially crafted AVP data with inval...