CVE-2026-98417net: xfrm: reject unrepresentable espintcp transport headers
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
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
- 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.