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NVD / CVE Program· CNA Linux

CVE-2026-64315: crypto: caam - use print_hex_dump_devel to guard key hex dumps

Noroxi assessment

Priority: Monitor (action score 28/100)

  • 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: 0.14% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: Linux Linux 1ec775f6a124cce6278ae58b7d1c78a3bc6eef23, 59057f5d4e9a195c6dd61695ad3bc4481ddf4f14, 6407dc85d0a4306681cf6c9be7f05e05dcb67a37.

Low priority for now. Upgrade to Linux Linux 1ec775f6a124cce6278ae58b7d1c78a3bc6eef23, 59057f5d4e9a195c6dd61695ad3bc4481ddf4f14, 6407dc85d0a4306681cf6c9be7f05e05dcb67a37 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() to avoid leaking secrets at runtime when CONFIG_DYNAMIC_DEBUG is enabled.

HighCVSS 7.0 · v3.1—No exploit Fix available
Published
Jul 25, 2026
Updated
Oct 24, 2026
EPSS
0.1% · 4th percentile
CWE
—

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CNA vs NVD score

NVD
—
CNA · Linux
7.0
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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-2026-64315

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

Affected versions

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

  • linux linux kernel4.20 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

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

    • 4.20affected
    • 8d818c1055013d355d36188f21c7535687374f6c and later · before 1ec775f6a124cce6278ae58b7d1c78a3bc6eef23affected · git
    • 8d818c1055013d355d36188f21c7535687374f6c and later · before bcf3cf74dfb6981e18b22cbf561f859a0f7faa26affected · git
    • 8d818c1055013d355d36188f21c7535687374f6c and later · before 6407dc85d0a4306681cf6c9be7f05e05dcb67a37affected · git
    • 8d818c1055013d355d36188f21c7535687374f6c and later · before c8cfe11e48b2a4646fa662fcaa92e14810a28d46affected · git
    • 8d818c1055013d355d36188f21c7535687374f6c and later · before 8904b425cfcafe6a820c94b9bdf4b10f7d70f9d7affected · git
    • 8d818c1055013d355d36188f21c7535687374f6c and later · before d0b8cafd529b4ec759190c6081f7a76efb563a8faffected · git
    • 8d818c1055013d355d36188f21c7535687374f6c and later · before 59057f5d4e9a195c6dd61695ad3bc4481ddf4f14affected · git
    • 8d818c1055013d355d36188f21c7535687374f6c and later · before 8005dc808bcce7d6cc2ae015a3cde1683bee602daffected · git
    • before 4.20not affected · semver

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-2026-64313Jul 25, 2026 · crypto: ecc - Fix carry overflow in vli multiplication
    35Monitor
  • ← EarlierCVE-2026-64314Jul 25, 2026 · crypto: chacha20poly1305 - validate poly1305 template argument
    22Monitor
  • Later →CVE-2026-64316Jul 25, 2026 · crypto: caam - use print_hex_dump_devel to guard key hex dumps
    22Monitor

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 Linux1ec775f6a124cce6278ae58b7d1c78a3bc6eef23Vendor (CNA)
Linux Linux59057f5d4e9a195c6dd61695ad3bc4481ddf4f14Vendor (CNA)
Linux Linux6407dc85d0a4306681cf6c9be7f05e05dcb67a37Vendor (CNA)
Linux Linux8005dc808bcce7d6cc2ae015a3cde1683bee602dVendor (CNA)
Linux Linux8904b425cfcafe6a820c94b9bdf4b10f7d70f9d7Vendor (CNA)
Linux Linuxbcf3cf74dfb6981e18b22cbf561f859a0f7faa26Vendor (CNA)
Linux Linuxc8cfe11e48b2a4646fa662fcaa92e14810a28d46Vendor (CNA)
Linux Linuxd0b8cafd529b4ec759190c6081f7a76efb563a8fVendor (CNA)
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).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

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.
  • Special conditions such as timing or configuration are required.

If successful

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

Weakness class (CWE)

—

CVSS vector

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

nvd-secondary

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.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

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

All records