Linux Distros Unpatched Vulnerability : CVE-2026-80845

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xfrm: avoid lock inversion in nat keepalive work natkeepalivework walks the state table while xfrmstatewalk holds net-xfrm.xfrmstatelock. Its callback then...

K000163171: Linux kernel netfilter vulnerability CVE-2026-53000

Security Advisory Description In the Linux kernel, the following vulnerability has been resolved: netfilter: nat: use kfreercu to release ops Florian Westphal says: "Historically this is not an issue, even for normal base hooks: the data path doesn't use the original nfhookops that are used to...

frp v0.71.0

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CVE-2026-55245 Bifrost: SSRF deny-list incomplete: isPublicIP permits CGNAT, IPv6 6to4/NAT64, and site-local in FetchAndEncodeURL

Bifrost is an enterprise AI gateway for routing requests to model providers. Prior to 1.5.17, the isPublicIP function in core/providers/utils/fetch.go, reached through FetchAndEncodeURL for Bedrock and Vertex image or document URLs, classifies Carrier-Grade NAT 100.64.0.0/10, IPv6 6to4 2002::/16,...

PT-2026-82964

In the Linux kernel, the following vulnerability has been resolved: netfilter: xt nat: reject unsupported target families xt nat SNAT and DNAT target handlers assume IP-family conntrack state is present and can dereference a NULL pointer when instantiated from an unsupported family through nft...

kernel: netfilter: conntrack: tcp: do not force CLOSE on invalid-seq RST without direction check

A flaw was found in the Linux kernel's netfilter conntrack TCP state machine. A remote attacker can exploit this vulnerability by sending a specially crafted sequence of TCP Transmission Control Protocol packets, specifically a SYN synchronize packet followed by an RST reset packet with an invali...

kernel: netfilter: conntrack: tcp: do not force CLOSE on invalid-seq RST without direction check

A flaw was found in the Linux kernel's netfilter conntrack TCP state machine. A remote attacker can exploit this vulnerability by sending a specially crafted sequence of TCP Transmission Control Protocol packets, specifically a SYN synchronize packet followed by an RST reset packet with an invali...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098737)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098737 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: add seqadj extension for natted connections Sequence adjustment may be required...

PT-2026-82127

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ipvs module where the system fails to revalidate embedded headers after reading them from the skb frags. A local process can modify the ihl field, which, following...

The vulnerability of the xfrm_nat_keepalive_net_init() function in the net/xfrm/xfrm_nat_keepalive.c module, which implements networking functions for the Linux kernel, allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the xfrmnatkeepalivenetinit function in the net/xfrm/xfrmnatkeepalive.c module, which implements networking functions in the Linux kernel, is related to state management errors. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: netfilter: iptables: Fixed null-ptr-deref in iptablenattableinit. We received a report that iptables-restore sometimes triggered null-ptr-deref at boot time. 0 The problem is that iptablenattableinit is exposed to user space befo...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: f2fs: A fix was made to avoid using f2fsbugon in f2fsnewnodepage. As reported by Dipanjan Das , syzkaller discovered a bug in f2fs as follows: RIP: 0010:f2fsnewnodepage+0x19ac/0x1fc0 fs/f2fs/node.c:1295 Call Trace: writeallxattrs...

CVE-2026-78205

BentoML's outbound connection safeguard makesafeconnect in internal/utils/uri.py blocks private, loopback, and link-local IP addresses but fails to reject the RFC 6598 shared address space 100.64.0.0/10, CGNAT. In versions 1.4.19 through 1.4.39, an unauthenticated attacker can supply URLs pointin...

CVE-2026-74724

In the Linux kernel, the following vulnerability has been resolved: ipvs: avoid out-of-bounds write in ipvsnaticmp Sashiko warns that local attacker can modify the packet while it is processed by IPVS. Some places read the IP ihl field multiple times which can cause out-of-bounds access. One such...

PT-2026-79729

In the Linux kernel, the following vulnerability has been resolved: ipvs: avoid out-of-bounds write in ip vs nat icmp Sashiko warns that local attacker can modify the packet while it is processed by IPVS. Some places read the IP ihl field multiple times which can cause out-of-bounds access. One...

CVE-2026-75501

A vulnerability in the Calix EXOS firmware for the GS7 XGS GS5239XG residential router allows unauthenticated remote attackers to modify NAT port‑forwarding rules via the UPnP WANIPConnection service. The device exposes the MiniUPnPd control endpoint on the WAN interface on TCP port 5000 without...

CVE-2026-75501 CVE-2026-75501

A vulnerability in the Calix EXOS firmware for the GS7 XGS GS5239XG residential router allows unauthenticated remote attackers to modify NAT port‑forwarding rules via the UPnP WANIPConnection service. The device exposes the MiniUPnPd control endpoint on the WAN interface on TCP port 5000 without...

EUVD-2026-63988

A vulnerability in the Calix EXOS firmware for the GS7 XGS GS5239XG residential router allows unauthenticated remote attackers to modify NAT port‑forwarding rules via the UPnP WANIPConnection service. The device exposes the MiniUPnPd control endpoint on the WAN interface on TCP port 5000 without...

PT-2026-79389

Name of the Vulnerable Software and Affected Versions Calix EXOS firmware version 6.6.47 Description An issue in the Calix EXOS firmware for the GS7 XGS GS5239XG residential router allows unauthenticated remote attackers to modify NAT port-forwarding rules. The device exposes the MiniUPnPd contro...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-102079)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-102079 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntrack: destroy stale expectfn expectations on unregister NAT helpers such as...