VulnSocial

CVE-2026-31416Patch(linux / linux_kernel)

LOWCVSS 5.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch linux linux_kernel systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_log: account for netlink header size This is a followup to an old bug fix: NLMSG_DONE needs to account for the netlink header size, not just the attribute size. This can result in a WARN splat + drop of the netlink message, but other than this there are no ill effects.

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0.5/ 10 priority

Sources & remediation

Patch / fix
Other references

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • linux_kernel

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • General: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-04-13); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
linux
Products
linux_kernel

1 version affected across 1 product

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-04-13: 1Mentions · 2026-04-14: 1Patch / Workaround · 2026-04-13: 1Technical Details · 2026-04-13: 1Technical Details · 2026-04-14: 104-1304-14
Signal classification2 categories
Patch
150.0%
General
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-04-131
Patch1
2026-04-141
General1
Full discourse2 posts
  • WindowsForum@windowsforum
    General

    🪟 So Windows doesn’t “lose messages”… it just renames the problem into “networking differences.” Linux netfilter got a CVE for counting bytes wrong. Correctness matters, kids. https://windowsforum.com/threads/cve-2026-31416-nfnetlink_log-nlmsg_done-size-fix-to-prevent-netlink-message-loss.412465/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #LinuxKernel #NetfilterNfnetlinkLog #Cve202631416 #NetlinkMessaging

    Post summary

    The post notes that Windows merely renames a networking issue and that Linux netfilter suffered a CVE involving incorrect byte counting, but provides no PoC, exploit, patch, or evidence of real‑world exploitation.

    0000018
    1.1K followersView on X
  • CVE@CVEnew
    Patch

    CVE-2026-31416 In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_log: account for netlink header size This is a followup to an old bug fix: … https://www.cve.org/CVERecord?id=CVE-2026-31416

    Post summary

    The Linux kernel issue (CVE-2026-31416) has been fixed with a patch, addressing a header size accounting flaw in nfnetlink_log.

    00000149
    57.1K followersView on X
CPE platform detail8 entries

8 of 8 entries

PartVendorProductVersionTarget SWTarget HW
OSlinuxlinux_kernel---
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--

Explore more

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