CVE-2026-80600 (CVSS 9.8)

Description

In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: acquire ARP hw source only after skb realloc The pskb_may_pull() called by batadv_get_vid() could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an use-after-free.

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CVSS v3.1 Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0073

Probability of exploitation

0.53%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/01678c53a7717a748aee388b6839e7b9761d641c https://git.kernel.org/stable/c/059a70e1d12d6d99310e0599d37b0323557569a8 https://git.kernel.org/stable/c/3404be97b940a9b1ae1aea5fdbc6cdbbe9cd5146 https://git.kernel.org/stable/c/3b4c70c40f2e135a50cd38fc61c7d23a296a9981 https://git.kernel.org/stable/c/48067b2ae4504500a7093d9e1e16b42e70330480 https://git.kernel.org/stable/c/86aa79b43e5b561fd3648891165bd7313b541315 https://git.kernel.org/stable/c/a82fc217cb7a447313c76ebf9f09b100771b0ddf https://git.kernel.org/stable/c/d755cd001fa2c248e186c1fc3df3d11d97dc843c

Frequently Asked Questions

What is CVE-2026-80600? +

In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: acquire ARP hw source only after skb realloc The pskb_may_pull() called by batadv_get_vid() could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an use-after-free. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-80600? +

CVE-2026-80600 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0073, placing it in the 1th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-80600? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

CVE-2026-80600