VulnerabilityPublished 17 Sep 2026Updated 19 Oct 2026

CVE-2026-92523: Linux kernel · RDMA/nldev: validate dynamic counter attribute length

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in f8e9315236c8b5155158c6955a758e7960b143e6 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 12:55 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in f8e9315236c8b5155158c6955a758e7960b143e6, d00b0d808ca706a04bd198827319a4a287eff82a, c57e238b475e8e1e514499772b8c0db5768be93f +3

Exploitation evidence

Disclosed: evidence found.
CVE published 17 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 3c3c1f1416392382faa0238e76a70d7810aab2ef, < f8e9315236c8b5155158c6955a758e7960b143e6	Fixed in f8e9315236c8b5155158c6955a758e7960b143e6
LinuxLinux	Affected ≥ 3c3c1f1416392382faa0238e76a70d7810aab2ef, < d00b0d808ca706a04bd198827319a4a287eff82a	Fixed in d00b0d808ca706a04bd198827319a4a287eff82a
LinuxLinux	Affected ≥ 3c3c1f1416392382faa0238e76a70d7810aab2ef, < c57e238b475e8e1e514499772b8c0db5768be93f	Fixed in c57e238b475e8e1e514499772b8c0db5768be93f
LinuxLinux	Affected ≥ 3c3c1f1416392382faa0238e76a70d7810aab2ef, < 7828d68ae8cad3463e38def5c91668c84e722596	Fixed in 7828d68ae8cad3463e38def5c91668c84e722596
LinuxLinux	Affected ≥ 3c3c1f1416392382faa0238e76a70d7810aab2ef, < 74f49255492a62658f36bf2578d7916f1c6ffad1	Fixed in 74f49255492a62658f36bf2578d7916f1c6ffad1
LinuxLinux	Affected ≥ 3c3c1f1416392382faa0238e76a70d7810aab2ef, < 0bfa897e3e1a61d172f95675b353168bc9290312	Fixed in 0bfa897e3e1a61d172f95675b353168bc9290312

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/nldev: validate dynamic counter attribute length RDMA_NLDEV_ATTR_STAT_HWCOUNTERS is a nested attribute whose children are consumed directly with nla_get_u32(). The top-level policy validates only the container, so it does not establish the fixed shape of each child. Require every child payload to be exactly one u32 before reading it.

References

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