VulnerabilityPublished 25 Jun 2026Updated 21 Oct 2026

CVE-2026-53156: Linux kernel · nvmem: core: fix use-after-free bugs in error paths

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in e0d38bf47a72da2f02c9fa6f752cd66d977cd7f7 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 13:47 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS: 0.1% chance of exploitation in 30 days – higher than 2% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in e0d38bf47a72da2f02c9fa6f752cd66d977cd7f7, cb85ef5a227b3662b88f4d849a1aad43bfe7f5ae, 40e2a459c0dd1333b2343831480a0ad80dc07614 +2

Exploitation evidence

Disclosed: evidence found.
CVE published 25 Jun 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 ≥ e888d445ac33a5b0288d670ecd970908b13f07cd, < e0d38bf47a72da2f02c9fa6f752cd66d977cd7f7	Fixed in e0d38bf47a72da2f02c9fa6f752cd66d977cd7f7
LinuxLinux	Affected ≥ e888d445ac33a5b0288d670ecd970908b13f07cd, < cb85ef5a227b3662b88f4d849a1aad43bfe7f5ae	Fixed in cb85ef5a227b3662b88f4d849a1aad43bfe7f5ae
LinuxLinux	Affected ≥ e888d445ac33a5b0288d670ecd970908b13f07cd, < 40e2a459c0dd1333b2343831480a0ad80dc07614	Fixed in 40e2a459c0dd1333b2343831480a0ad80dc07614
LinuxLinux	Affected ≥ e888d445ac33a5b0288d670ecd970908b13f07cd, < 6cdcf0d16c80900f42d60252480cd131c1a83d23	Fixed in 6cdcf0d16c80900f42d60252480cd131c1a83d23
LinuxLinux	Affected ≥ e888d445ac33a5b0288d670ecd970908b13f07cd, < 5b6b6fc491899d583eaa75344e094796ae9b530b	Fixed in 5b6b6fc491899d583eaa75344e094796ae9b530b
LinuxLinux	Affected =4.20	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: nvmem: core: fix use-after-free bugs in error paths Fix several instances of error paths in which we call __nvmem_device_put() - which may end up freeing the underlying memory and other resources - and then keep on using the nvmem structure. Always put the reference to the nvmem device as the last step before returning the error code.

References

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