Is CVE-2026-43101 actively exploited?

No active exploitation of CVE-2026-43101 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-43101 be exploited remotely?

Yes. CVE-2026-43101 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-43101?

CVE-2026-43101 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2026-43101

Published: May 6, 2026· Updated: May 11, 2026

7.5

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:4.1th

Official Description

In the Linux kernel, the following vulnerability has been resolved:

ipv6: ioam: fix potential NULL dereferences in __ioam6_fill_trace_data()

We need to check __in6_dev_get() for possible NULL value, as

suggested by Yiming Qian.

Also add skb_dst_dev_rcu() instead of skb_dst_dev(),

and two missing READ_ONCE().

Note that @dev can't be NULL.

NVD Source

Technical Analysis

CVE-2026-43101 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.