Loading vulnerability…
CVE-2026-43038 is a type-confusion vulnerability in Linux kernel IPv6 ICMP error handling. In ip6_err_gen_icmpv6_unreach(), an outer IPv4 ICMP error packet is cloned without clearing its control buffer. When the clone reaches icmp6_send(), IP6CB interprets retained IPv4 inet_skb_parm data as IPv6 inet6_skb_parm data. The IPv4 CIPSO option offset overlaps the IPv6 dsthao field at offset 18. A forged ICMPv4 error containing a CIPSO option can therefore influence mip6_addr_swap() to scan attacker-controlled inner IPv6 data for a fake Home Address Option without ensuring sufficient space for the complete 18-byte structure. This potentially allows a 16-byte address swap beyond packet data into skb_shared_info.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
48 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel IPv6 ICMP vulnerability addressed by clearing skb2 control-buffer data in ip6_err_gen_icmpv6_unreach().
A vulnerability addressed by the referenced CentOS 8/TuxCare security update; no technical flaw details are provided.
A vulnerability referenced in the TuxCare CentOS 8.5 local-security-check advisory.
A vulnerability addressed in Huawei EulerOS UVP 2.10.1 kernel-related packages.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.