vulnerabilitymediumCVE-2026-23276

CVE-2026-23276: In the Linux kernel, the following vulnerability has been resolved: net: add xmit recursion limit to tunnel xmit f

zeroday.news·110d ago

CVE-2026-23276vulnerability

ShareX LinkedIn WhatsApp Facebook

In the Linux kernel, the following vulnerability has been resolved: net: add xmit recursion limit to tunnel xmit functions Tunnel xmit functions (iptunnel_xmit, ip6tunnel_xmit) lack their own recursion limit. When a bond device in broadcast mode has GRE tap interfaces as slaves, and those GRE tunnels route back through the bond, multicast/broadcast traffic triggers infinite recursion between bond_xmit_broadcast() and ip_tunnel_xmit()/ip6_tnl_xmit(), causing kernel stack overflow. The existing XMIT_RECURSION_LIMIT (8) in the no-qdisc path is not sufficient because tunnel recursion involves route lookups and full IP output, consuming much more stack per level. Use a lower limit of 4 (IP_TUN

vulnerability memory-safety linux

ShareX LinkedIn WhatsApp Facebook

← Back to latest

More News

zeroday.news · 6h ago·critical

Ubiquiti Patches Critical UniFi Flaws Across Connect, Talk, Access, Protect, and OS

Ubiquiti has released security updates to address several critical vulnerabilities affecting its UniFi product line, including UniFi Connect, Talk, Access, Protect, and OS. These flaws could allow attackers to escalate privileges or execute arbitrary commands on affected devices. While no active exploitation has been reported for these specific vulnerabilities, the company has previously seen its UniFi OS and Edge OS products targeted by threat actors.

zeroday.news · 6h ago·critical

Attackers using Langflow flaw for credential harvesting (CVE-2026-55255)

CISA has issued a warning regarding a critical vulnerability (CVE-2026-55255) in the Langflow AI framework, which is being actively exploited by attackers. The flaw allows authenticated users to execute arbitrary flows belonging to other users, potentially leading to the theft of sensitive credentials and data exposure, especially in multi-tenant environments. US federal agencies have been mandated to patch this vulnerability by July 10th.

zeroday.news · 1h ago·high

Accenture Confirms Security Incident After Hacker Claims 35GB Source-Code Theft

Accenture has acknowledged a security incident after a threat actor advertised what they claim is stolen internal data. The attacker, using the alias "888", says they took more than 35GB of source code and cloud credentials from the consulting giant and are offering it for sale. Accenture says it has addressed the source of the issue and that its operations were not disrupted.

zeroday.news · 5h ago·high

China-Linked APT Expands Arsenal With New ‘Leash’ Backdoors

A China-linked advanced persistent threat (APT) group, identified as LapDogs, has reportedly enhanced its malicious toolkit. Security researchers have observed the deployment of three new backdoors: LongLeash, DogLeash, and JarLeash, which are designed to compromise small office/home office (SOHO) routers.

zeroday.news · 5h ago·high

RedWing Android Spyware Sold as a Service on Telegram

A new Android spyware called RedWing is being offered as a service on Telegram, allowing less sophisticated attackers to compromise phones and steal banking information. Researchers have identified it as a polished malware-as-a-service operation with extensive documentation and a subscription model, potentially linked to Russian threat actors. RedWing employs fake login overlays, SMS interception, call forwarding, and even screen control to harvest credentials and conduct further malicious activities.

zeroday.news · 5h ago·high

Operationalizing Day Minus Seven: The Cloud-Native ROC

The article introduces the concept of a Risk Operations Center (ROC) as a necessary evolution for cybersecurity teams facing AI-driven threats. It argues that traditional risk management models are insufficient due to the speed at which AI can discover and exploit vulnerabilities, especially in cloud environments. A ROC, powered by platforms like Qualys Enterprise TruRisk Management (ETM), aims to unify disparate security findings, hyper-prioritize risks based on exploitability and business impact, and enable autonomous remediation to keep pace with attackers.