VulnerabilityPublished 25 Jul 2026Updated 6 Nov 2026

CVE-2026-64316: Linux kernel · crypto: caam – use print_hex_dump_devel to guard key hex dumps

Affects Linux kernelSource CVE Database V5

Compare

Not known to be exploited · fixed in ebd37eef6e4f435e18829c0c0c9ba3a6618cb2dd : update Linux kernel when convenient.

Data as of 6 Nov 2026, 17:04 UTC

Severity

Unrated

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

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch

Available – fixed in ebd37eef6e4f435e18829c0c0c9ba3a6618cb2dd, cea7302d5d05df74cfb4107897b1ca34163c06b9, 45c0e3615e5bca5f1fc93357af8d19975c092d4f +5

Exploitation evidence

Disclosed: evidence found.
CVE published 25 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 6 Nov 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.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), 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 ≥ 6e005503199b9bf1b385949c05897fd6567b5af4, < ebd37eef6e4f435e18829c0c0c9ba3a6618cb2dd	Fixed in ebd37eef6e4f435e18829c0c0c9ba3a6618cb2dd
LinuxLinux	Affected ≥ 6e005503199b9bf1b385949c05897fd6567b5af4, < cea7302d5d05df74cfb4107897b1ca34163c06b9	Fixed in cea7302d5d05df74cfb4107897b1ca34163c06b9
LinuxLinux	Affected ≥ 6e005503199b9bf1b385949c05897fd6567b5af4, < 45c0e3615e5bca5f1fc93357af8d19975c092d4f	Fixed in 45c0e3615e5bca5f1fc93357af8d19975c092d4f
LinuxLinux	Affected ≥ 6e005503199b9bf1b385949c05897fd6567b5af4, < 9a53dc0a0ae0486e164e5af3de5f99ab42c5a23e	Fixed in 9a53dc0a0ae0486e164e5af3de5f99ab42c5a23e
LinuxLinux	Affected ≥ 6e005503199b9bf1b385949c05897fd6567b5af4, < 8cf5fb0503129e53052fe29302379cf83891d0fb	Fixed in 8cf5fb0503129e53052fe29302379cf83891d0fb
LinuxLinux	Affected ≥ 6e005503199b9bf1b385949c05897fd6567b5af4, < 8b56ba10105ca34a4b75f7e33d41d96a63815591	Fixed in 8b56ba10105ca34a4b75f7e33d41d96a63815591

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: caam - use print_hex_dump_devel to guard key hex dumps Use print_hex_dump_devel() for dumping sensitive key material in *_setkey() and gen_split_key() to avoid leaking secrets at runtime when CONFIG_DYNAMIC_DEBUG is enabled.

References

Community reviews

Loading reviews…