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NVD / CVE Program· CNA Linux

CVE-2026-64316: crypto: caam - use print_hex_dump_devel to guard key hex dumps

MediumCVSS 5.5 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.12% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 3f57657b6ea23f933371f2c2846322f441773cee, 45c0e3615e5bca5f1fc93357af8d19975c092d4f, 6f7b8e0321f3a8fbbd267d2ac15c671ab59e919e; azl3 kernel 6.6.144.1-1 on Azure Linux 3.0 6.6.145.2-1.

Low priority for now. Upgrade to Linux Linux 3f57657b6ea23f933371f2c2846322f441773cee, 45c0e3615e5bca5f1fc93357af8d19975c092d4f, 6f7b8e0321f3a8fbbd267d2ac15c671ab59e919e; azl3 kernel 6.6.144.1-1 on Azure Linux 3.0 6.6.145.2-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

Published
Jul 25, 2026
Updated
Nov 6, 2026
EPSS
0.1% · 2th percentile
CWE
—

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-64316

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 5.3affected
    • 6e005503199b9bf1b385949c05897fd6567b5af4 and later · before 45c0e3615e5bca5f1fc93357af8d19975c092d4faffected · git
    • 6e005503199b9bf1b385949c05897fd6567b5af4 and later · before 8b56ba10105ca34a4b75f7e33d41d96a63815591affected · git
    • 6e005503199b9bf1b385949c05897fd6567b5af4 and later · before 9a53dc0a0ae0486e164e5af3de5f99ab42c5a23eaffected · git
    • 6e005503199b9bf1b385949c05897fd6567b5af4 and later · before ebd37eef6e4f435e18829c0c0c9ba3a6618cb2ddaffected · git
    • 6e005503199b9bf1b385949c05897fd6567b5af4 and later · before cea7302d5d05df74cfb4107897b1ca34163c06b9affected · git
    • 6e005503199b9bf1b385949c05897fd6567b5af4 and later · before 6f7b8e0321f3a8fbbd267d2ac15c671ab59e919eaffected · git
    • 6e005503199b9bf1b385949c05897fd6567b5af4 and later · before 8cf5fb0503129e53052fe29302379cf83891d0fbaffected · git
    • 6e005503199b9bf1b385949c05897fd6567b5af4 and later · before 3f57657b6ea23f933371f2c2846322f441773ceeaffected · git
    • before 5.3not affected · semver
Affected versions · NVD (7)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel5.3 and later · before 5.10.261
  • linux linux kernel5.11 and later · before 5.15.212
  • linux linux kernel5.16 and later · before 6.1.178
  • linux linux kernel6.2 and later · before 6.6.145
  • linux linux kernel6.7 and later · before 6.12.96
  • linux linux kernel6.13 and later · before 6.18.39
  • linux linux kernel6.19 and later · before 7.1.4

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.180-16.1.180-1
Debian:12linux-6.12before 6.12.100-1~deb12u16.12.100-1~deb12u1
Debian:13linuxbefore 6.12.96-16.12.96-1
Debian:14linuxbefore 7.1.4-17.1.4-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe…KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2026-64314Jul 25, 2026 · crypto: chacha20poly1305 - validate poly1305 template argument
    22Monitor
  • ← EarlierCVE-2026-64315Jul 25, 2026 · crypto: caam - use print_hex_dump_devel to guard key hex dumps
    28Monitor
  • Later →CVE-2026-64317Jul 25, 2026 · isofs: bound Rock Ridge symlink components to the SL record
    28Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux3f57657b6ea23f933371f2c2846322f441773ceeVendor (CNA)
Linux Linux45c0e3615e5bca5f1fc93357af8d19975c092d4fVendor (CNA)
Linux Linux6f7b8e0321f3a8fbbd267d2ac15c671ab59e919eVendor (CNA)
Linux Linux8b56ba10105ca34a4b75f7e33d41d96a63815591Vendor (CNA)
Linux Linux8cf5fb0503129e53052fe29302379cf83891d0fbVendor (CNA)
Linux Linux9a53dc0a0ae0486e164e5af3de5f99ab42c5a23eVendor (CNA)
Linux Linuxcea7302d5d05df74cfb4107897b1ca34163c06b9Vendor (CNA)
Linux Linuxebd37eef6e4f435e18829c0c0c9ba3a6618cb2ddVendor (CNA)
azl3 kernel 6.6.144.1-1 on Azure Linux 3.06.6.145.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.180-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.100-1~deb12u1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Not on record for this CVE: patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records