Not yet scoredPublished Oct 14, 2026

CVE-2026-98417net: xfrm: reject unrepresentable espintcp transport headers

Updated under an hour ago (Oct 26, 2026, 1:50 PM ET)

Does this affect you?

It affects Linux. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: net: xfrm: reject unrepresentable espintcp transport headers ESP-in-TCP can hand xfrm packets whose transport header offset no longer fits after the stream parser trims the TCP envelope. The plain transport header reset truncates that offset and triggers the skb warning path. Use the careful transport-header helper and drop the skb through the existing XFRM error path when the offset cannot be represented.

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 14, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 before d37a5b87577c4b4c1a1dcb000a9dff1df2cf886b; from e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 before 6c29681207bc213188afa603dff2d55e7178a341; from e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 before 4a8243fd2e21980fa3fd10c0610e9155057cebd3; from e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 before b2b84e73e0386ad0b4f9b8d3afde343e761f5275; from e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 before 327b2a457dd7d5445f7395f371f3c65de79bd5ce; from e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 before cce630c751279e974fa0bb574d80575e0cc7e8f3; from e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 before 206f396f46149dc8bc4dfd2b54b9879ba3ee1d7d; from e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 before 96f01b53c2d05e003b040892256de54a586e8529	CNA record

References

References

https://git.kernel.org/stable/c/d37a5b87577c4b4c1a1dcb000a9dff1df2cf886b
https://git.kernel.org/stable/c/6c29681207bc213188afa603dff2d55e7178a341
https://git.kernel.org/stable/c/4a8243fd2e21980fa3fd10c0610e9155057cebd3
https://git.kernel.org/stable/c/b2b84e73e0386ad0b4f9b8d3afde343e761f5275
https://git.kernel.org/stable/c/327b2a457dd7d5445f7395f371f3c65de79bd5ce
https://git.kernel.org/stable/c/cce630c751279e974fa0bb574d80575e0cc7e8f3
https://git.kernel.org/stable/c/206f396f46149dc8bc4dfd2b54b9879ba3ee1d7d
https://git.kernel.org/stable/c/96f01b53c2d05e003b040892256de54a586e8529

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.