CVE-2026-11850

CVE-2026-11850 affects MIT Kerberos 5; the vulnerability is an integer underflow in berval2tl_data() inside ldap_principal2.c, where unsigned bv_len - 2 lacks bounds checking. When bv_len is 0 or 1, the subtraction underflows to 0xFFFE/0xFFFF and is then memcpy’d from a 0–1 byte buffer, causing a...

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...

MIT Kerberos 数字错误漏洞

MIT krb5 is a network authentication protocol developed by the Massachusetts Institute of Technology in the United States. It operates on a client/server architecture, and both the client and server can perform identity authentication i.e., double verification, which helps prevent eavesdropping a...

PT-2026-48636

Name of the Vulnerable Software and Affected Versions MIT krb5 affected versions not specified Description An integer underflow occurs in the berval2tl data function within plugins/kdb/ldap/libkdb ldap/ldap principal2.c. The function executes an unsigned subtraction bv len - 2 without a bounds...

CVE-2026-44235

sizet underflow in AMQP frame length computation leads to out-of-bounds read in rabbitmq-c...

CVE-2026-45469

Integer underflow wrap or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code locally...

CVE-2026-44818

Integer underflow wrap or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code locally...

CVE-2026-44817

Integer underflow wrap or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code locally...

CVE-2026-44820

Integer underflow wrap or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code locally...

CVE-2026-44823

Integer underflow wrap or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code locally...

CVE-2026-42981

Integer underflow wrap or wraparound in Windows Performance Monitor allows an unauthorized attacker to execute code over a network...

CVE-2026-42974

Integer underflow wrap or wraparound in Windows Performance Monitor allows an unauthorized attacker to execute code over a network...

CVE-2026-42980

Integer underflow wrap or wraparound in Windows NT OS Kernel allows an authorized attacker to elevate privileges locally...

CVE-2026-42916

Integer underflow wrap or wraparound in Windows NT OS Kernel allows an authorized attacker to elevate privileges locally...

CVE-2026-42542 TDengine has an integer underflow in uvConnMayGetUserInfo() allows unauthenticated remote crash (DoS)

TDengine is an open source, time-series database optimized for Internet of Things devices. In versions 3.4.0.0 through 3.4.1.5, an unauthenticated remote attacker can crash the taosd server process by sending a single crafted RPC packet. No credentials or prior session state are required. Version...

CVE-2026-42542 TDengine has an integer underflow in uvConnMayGetUserInfo() allows unauthenticated remote crash (DoS)

TDengine is an open source, time-series database optimized for Internet of Things devices. In versions 3.4.0.0 through 3.4.1.5, an unauthenticated remote attacker can crash the taosd server process by sending a single crafted RPC packet. No credentials or prior session state are required. Version...

CVE-2026-42542

CVE-2026-42542 affects TDengine versions 3.4.0.0–3.4.1.5. An unauthenticated remote attacker can cause a denial of service by sending a single crafted RPC packet, triggering an integer underflow in uvConnMayGetUserInfo() and crashing the taosd server. Impact is limited to availability (A) with ne...

OPENSUSE-SU-2026:20938-1 Security update for perl-YAML-Syck

This update for perl-YAML-Syck fixes the following issues: Changes in perl-YAML-Syck: - CVE-2026-5089: prevent buffer underflow in base60 sexagesimal parsing PR 133 bsc1265155...

BIT-APACHE-2026-44631 Apache HTTP Server: Heap Underflow in `ap_regname` via Signed Char Overflow

Buffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the configuration. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue...

EulerOS 2.0 SP13 : cups (EulerOS-SA-2026-2282)

According to the versions of the cups packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, an integer...