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CVE-2026-98322

netfilter: nft_nat: fully initialise new_addr in netmap setup

No known exploitation. EPSS puts it in the 7th percentile. Fixed versions are out.

CVSS —Not scoredEPSS percentile7th0.2% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
No public exploit knownFix1 product4 fixed builds listed below

Published Updated Sources: CVE.org, NVD

NVD CVE.org

What to do

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  • LinuxAffected: ≥ 3ff7ddb1353da9b535e65702704cbadea1da9a00, < 29365695842db0a97b701a43a09fad1b4f7ecf3eUpgrade to: 29365695842db0a97b701a43a09fad1b4f7ecf3eAffected: ≥ 3ff7ddb1353da9b535e65702704cbadea1da9a00, < 7b9380c38c2fd2189416fa602bdbc5c8523b84b2Upgrade to: 7b9380c38c2fd2189416fa602bdbc5c8523b84b2Affected: ≥ 3ff7ddb1353da9b535e65702704cbadea1da9a00, < eb2030137dba3b59cbb5057a33af70488d6bc231Upgrade to: eb2030137dba3b59cbb5057a33af70488d6bc231Affected: ≥ 3ff7ddb1353da9b535e65702704cbadea1da9a00, < e4982c489ee359162eee3ece1fb36082648464a5Upgrade to: e4982c489ee359162eee3ece1fb36082648464a5 + 4 more branchesStated by: CVE record

Versions as the sources state them. Full version matrix after sign-in

What it is

From the CVE record

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_nat: fully initialise new_addr in netmap setup nft_nat_setup_netmap() builds the mapped address in an on-stack union nf_inet_addr. For an IPv4 mapping it writes only the 4-byte .ip member and the loop runs a single 32-bit iteration, but it then copies the whole 16-byte union into range->min_addr and range->max_addr, so the upper 12 bytes reach nf_nat_setup_info() uninitialised. KMSAN reports an uninit-value in nf_nat_setup_info() reached from nft_nat_eval(). The IPv6 path fills all 16 bytes and is not affected. Zero-initialise new_addr.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS7th
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

0.2% chance of exploitation activity in the next 30 days, which ranks it in the 7th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

2 events over 0 days, from the signal feeds we watch.

  1. Publishedrecord updated

Affected products

Sources

References in the record

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In the news

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