CVE detail
CVE-2026-43040
In the Linux kernel, the following vulnerability has been resolved: net: ipv6: ndisc: fix ndisc_ra_useropt to initialize nduseropt_padX fields to zero to prevent an info-leak When processing Router Advertisements with user options the kernel builds an RTM_NEWNDUSEROPT netlink message. The nduseroptmsg struct has three padding fields that are never zeroed and can leak kernel data The fix is simple, just zeroes the padding fields.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 24.0 · diversity 10.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
10 source links · newest first
- https://cert-portal.siemens.com/productcert/html/ssa-082556.htmlcert-portal.siemens.com
No excerpt available.
Vendor Advisorycert-portal.siemens.comMay 1, 2026, 3:16 PM - https://cert-portal.siemens.com/productcert/html/ssa-019113.htmlcert-portal.siemens.com
No excerpt available.
Vendor Advisorycert-portal.siemens.comMay 1, 2026, 3:16 PM No excerpt available.
Patchgit.kernel.orgMay 1, 2026, 3:16 PMNo excerpt available.
Patchgit.kernel.orgMay 1, 2026, 3:16 PMNo excerpt available.
Patchgit.kernel.orgMay 1, 2026, 3:16 PMNo excerpt available.
Patchgit.kernel.orgMay 1, 2026, 3:16 PMNo excerpt available.
Patchgit.kernel.orgMay 1, 2026, 3:16 PMNo excerpt available.
Patchgit.kernel.orgMay 1, 2026, 3:16 PMNo excerpt available.
Patchgit.kernel.orgMay 1, 2026, 3:16 PMNo excerpt available.
Patchgit.kernel.orgMay 1, 2026, 3:16 PM
Exploit code
Public exploit repository references
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0 repository references · best confidence N/A · max 0 stars
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