USN-8615-1: Linux kernel vulnerabilities

It was discovered that a logic flaw existed in the XFRM ESP-in-TCP subsystem in the Linux kernel when handling socket buffer fragments. This flaw is known as Fragnesia. A local attacker could use this to escalate privileges, or possibly escape a container. CVE-2026-43503 Several security issues...

USN-8615-1 linux, linux-aws, linux-aws-5.4, linux-aws-fips, linux-azure, linux-azure-5.4, linux-azure-fips, linux-bluefield, linux-fips, linux-gcp, linux-gcp-5.4, linux-gcp-fips, linux-hwe-5.4, linux-iot, linux-oracle, linux-oracle-5.4, linux-xilinx-zynqmp vulnerabilities

It was discovered that a logic flaw existed in the XFRM ESP-in-TCP subsystem in the Linux kernel when handling socket buffer fragments. This flaw is known as Fragnesia. A local attacker could use this to escalate privileges, or possibly escape a container. CVE-2026-43503 Several security issues...

USN-8547-2: Linux kernel (Azure FIPS) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - RISC-V architecture; - Cryptographic API; - InfiniBand drivers; - IOMMU subsystem; - Network drivers; -...

USN-8547-2 linux-azure-fips vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - RISC-V architecture; - Cryptographic API; - InfiniBand drivers; - IOMMU subsystem; - Network drivers; -...

PT-2026-65559

Name of the Vulnerable Software and Affected Versions Bridge affected versions not specified Description An Incorrect Authorization issue allows for arbitrary code execution within the context of the current user. This occurs when a victim opens a malicious file, requiring user interaction to...

Linux Distros Unpatched Vulnerability : CVE-2026-64537

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bridge: cfm: reject invalid CCM interval at configuration time ccmtxworkexpired re-arms itself via queuedelayedwork using the configured expinterval converted b...

PT-2026-65558

Name of the Vulnerable Software and Affected Versions Bridge affected versions not specified Description An Untrusted Search Path issue exists that could allow arbitrary code execution in the context of the current user. This occurs when the application searches for files in an insecure order or...

PT-2026-65555

Name of the Vulnerable Software and Affected Versions Bridge affected versions not specified Description An out-of-bounds write occurs when a program writes data past the end of a buffer, potentially corrupting memory. This issue could result in arbitrary code execution in the context of the...

PT-2026-65556

Name of the Vulnerable Software and Affected Versions Bridge affected versions not specified Description An out-of-bounds write occurs when a program writes data past the end of a buffer, potentially corrupting memory. This issue could result in arbitrary code execution in the context of the...

PT-2026-65554

Name of the Vulnerable Software and Affected Versions Bridge affected versions not specified Description An Untrusted Search Path issue exists where the application may load a malicious DLL or executable from an unexpected location. This could allow a low-privileged attacker to achieve arbitrary...

PT-2026-65557

Name of the Vulnerable Software and Affected Versions Bridge affected versions not specified Description An out-of-bounds write occurs when a program writes data past the end of a buffer, potentially corrupting memory. This issue could result in arbitrary code execution in the context of the...

Linux Distros Unpatched Vulnerability : CVE-2026-64554

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: bridge: fix stale prevhdr pointer in brip6fragment brip6fragment gets prevhdr, a pointer into the skb head, from ip6find1stfragopt, then calls...

RHEL 10 : kernel (RHSA-2026:47017)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:47017 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: net: bridge: use a stable FD...

CVE-2026-64554

In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: fix stale prevhdr pointer in brip6fragment brip6fragment gets prevhdr, a pointer into the skb head, from ip6find1stfragopt, then calls skbchecksumhelp. For a cloned skb skbchecksumhelp reallocates the head via...

UBUNTU-CVE-2026-64537

In the Linux kernel, the following vulnerability has been resolved: bridge: cfm: reject invalid CCM interval at configuration time ccmtxworkexpired re-arms itself via queuedelayedwork using the configured expinterval converted by intervaltous. When expinterval is BRCFMCCMINTERVALNONE or out of...

UBUNTU-CVE-2026-64554

In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: fix stale prevhdr pointer in brip6fragment brip6fragment gets prevhdr, a pointer into the skb head, from ip6find1stfragopt, then calls skbchecksumhelp. For a cloned skb skbchecksumhelp reallocates the head via...

CVE-2026-64554 netfilter: bridge: fix stale prevhdr pointer in br_ip6_fragment()

In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: fix stale prevhdr pointer in brip6fragment brip6fragment gets prevhdr, a pointer into the skb head, from ip6find1stfragopt, then calls skbchecksumhelp. For a cloned skb skbchecksumhelp reallocates the head via...

EUVD-2026-49605

In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: fix stale prevhdr pointer in brip6fragment brip6fragment gets prevhdr, a pointer into the skb head, from ip6find1stfragopt, then calls skbchecksumhelp. For a cloned skb skbchecksumhelp reallocates the head via...

CVE-2026-64554

In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: fix stale prevhdr pointer in brip6fragment brip6fragment gets prevhdr, a pointer into the skb head, from ip6find1stfragopt, then calls skbchecksumhelp. For a cloned skb skbchecksumhelp reallocates the head via...

CVE-2026-64554

CVE-2026-64554 affects the Linux kernel's Netfilter bridge path. The vulnerability occurs in br_ip6_fragment(), which obtains prevhdr (a pointer into the skb head) from ip6_find_1stfragopt() and then calls skb_checksum_help(). For cloned skbs, skb_checksum_help() reallocates the head via pskb_exp...