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NVD / CVE Program· CNA Linux

CVE-2026-46028: crypto: algif_aead - snapshot IV for async AEAD requests

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 08ea39a556ecd39b33c2b4888861001c6706a62e, 3d72f8c6490dc79210b64270740cb2a8619361a4, 46fdb39e83227b5d39f7c934a0947ea913f13c18.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 08ea39a556ecd39b33c2b4888861001c6706a62e, 3d72f8c6490dc79210b64270740cb2a8619361a4, 46fdb39e83227b5d39f7c934a0947ea913f13c18 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: algif_aead - snapshot IV for async AEAD requests AF_ALG AEAD AIO requests currently use the socket-wide IV buffer during request processing. For async requests, later socket activity can update that shared state before the original request has fully completed, which can lead to inconsistent IV handling. Snapshot the IV into per-request storage when preparing the AEAD request, so in-flight operations no longer depend on mutable socket state.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 27, 2026
Updated
Jun 17, 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%

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-2026-46028

When you'll hear from us

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  • 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 kernel4.14 and later · before 5.10.254
  • linux linux kernel5.11 and later · before 5.15.204
  • linux linux kernel5.16 and later · before 6.1.170
  • linux linux kernel6.2 and later · before 6.6.137
  • linux linux kernel6.7 and later · before 6.12.85
  • linux linux kernel6.13 and later · before 6.18.27
  • linux linux kernel6.19 and later · before 7.0.4

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

    • 4.14affected
    • d887c52d6ae43aeebd249b5f2f1333e60236aa60 and later · before 08ea39a556ecd39b33c2b4888861001c6706a62eaffected · git
    • d887c52d6ae43aeebd249b5f2f1333e60236aa60 and later · before a920cabdb0b7cf1f4e11a20524253ae5bd09092baffected · git
    • d887c52d6ae43aeebd249b5f2f1333e60236aa60 and later · before fa0fcec9b49d58e71df7ede91ecd86855f608e85affected · git
    • d887c52d6ae43aeebd249b5f2f1333e60236aa60 and later · before c2138c9bd02af19e0b407376140cd5435b0d81daaffected · git
    • d887c52d6ae43aeebd249b5f2f1333e60236aa60 and later · before 46fdb39e83227b5d39f7c934a0947ea913f13c18affected · git
    • d887c52d6ae43aeebd249b5f2f1333e60236aa60 and later · before ebc235675f24b0e3f8bc92b8419471d42f837d8faffected · git
    • d887c52d6ae43aeebd249b5f2f1333e60236aa60 and later · before 3d72f8c6490dc79210b64270740cb2a8619361a4affected · git
    • d887c52d6ae43aeebd249b5f2f1333e60236aa60 and later · before 5aa58c3a572b3e3b6c786953339f7978b845cc52affected · git
    • before 4.14not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.170-16.1.170-1
Debian:13linuxbefore 6.12.85-16.12.85-1
Debian:14linuxbefore 7.0.4-17.0.4-1
openSUSE:Leap 16.0dtb-aarch64before 6.12.0-160000.40.16.12.0-160000.40.1
openSUSE:Leap 16.0kernel-64kbbefore 6.12.0-160000.40.16.12.0-160000.40.1
openSUSE:Leap 16.0kernel-azurebefore 6.12.0-160000.40.16.12.0-160000.40.1
openSUSE:Leap 16.0kernel-defaultbefore 6.12.0-160000.40.16.12.0-160000.40.1
openSUSE:Leap 16.0kernel-default-basebefore 6.12.0-160000.40.1.160000.2.296.12.0-160000.40.1.160000.2.29
openSUSE:Leap 16.0kernel-docsbefore 6.12.0-160000.40.16.12.0-160000.40.1
openSUSE:Leap 16.0kernel-kvmsmallbefore 6.12.0-160000.40.16.12.0-160000.40.1
openSUSE:Leap 16.0kernel-obs-buildbefore 6.12.0-160000.40.16.12.0-160000.40.1
openSUSE:Leap 16.0kernel-obs-qabefore 6.12.0-160000.40.16.12.0-160000.40.1
openSUSE:Leap 16.0kernel-rtbefore 6.12.0-160000.40.16.12.0-160000.40.1
openSUSE:Leap 16.0kernel-sourcebefore 6.12.0-160000.40.16.12.0-160000.40.1
openSUSE:Leap 16.0kernel-symsbefore 6.12.0-160000.40.16.12.0-160000.40.1
openSUSE:Leap 16.0kernel-zfcpdumpbefore 6.12.0-160000.40.16.12.0-160000.40.1
SUSE:Linux Micro 6.2kernel-64kbbefore 6.12.0-160000.40.16.12.0-160000.40.1
SUSE:Linux Micro 6.2kernel-defaultbefore 6.12.0-160000.40.16.12.0-160000.40.1
SUSE:Linux Micro 6.2kernel-default-basebefore 6.12.0-160000.40.1.160000.2.296.12.0-160000.40.1.160000.2.29
SUSE:Linux Micro 6.2kernel-rtbefore 6.12.0-160000.40.16.12.0-160000.40.1
SUSE:Linux Micro 6.2kernel-sourcebefore 6.12.0-160000.40.16.12.0-160000.40.1
SUSE:Linux Micro Extras 6.2kernel-obs-buildbefore 6.12.0-160000.40.16.12.0-160000.40.1
SUSE:Linux Micro Extras 6.2kernel-symsbefore 6.12.0-160000.40.16.12.0-160000.40.1

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-2026-46020May 27, 2026 · mm/damon/core: validate damos_quota_goal->nid for node_mem_{used,free}_bp
    28Monitor
  • ← EarlierCVE-2026-46025May 27, 2026 · mm/damon/core: fix damon_call() vs kdamond_fn() exit race
    18Monitor
  • Later →CVE-2026-46029May 27, 2026 · mm/slab: return NULL early from kmalloc_nolock() in NMI on UP
    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 Linux08ea39a556ecd39b33c2b4888861001c6706a62eVendor (CNA)
Linux Linux3d72f8c6490dc79210b64270740cb2a8619361a4Vendor (CNA)
Linux Linux46fdb39e83227b5d39f7c934a0947ea913f13c18Vendor (CNA)
Linux Linux5aa58c3a572b3e3b6c786953339f7978b845cc52Vendor (CNA)
Linux Linuxa920cabdb0b7cf1f4e11a20524253ae5bd09092bVendor (CNA)
Linux Linuxc2138c9bd02af19e0b407376140cd5435b0d81daVendor (CNA)
Linux Linuxebc235675f24b0e3f8bc92b8419471d42f837d8fVendor (CNA)
Linux Linuxfa0fcec9b49d58e71df7ede91ecd86855f608e85Vendor (CNA)
debian:linux6.1.170-1 · Debian:12Package registry (OSV)
opensuse:dtb-aarch646.12.0-160000.40.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-64kb6.12.0-160000.40.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-azure6.12.0-160000.40.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-default6.12.0-160000.40.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-default-base6.12.0-160000.40.1.160000.2.29 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-docs6.12.0-160000.40.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-kvmsmall6.12.0-160000.40.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-obs-build6.12.0-160000.40.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-obs-qa6.12.0-160000.40.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-rt6.12.0-160000.40.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-source6.12.0-160000.40.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:kernel-syms6.12.0-160000.40.1 · openSUSE:Leap 16.0Package registry (OSV)
suse:kernel-64kb6.12.0-160000.40.1 · SUSE:Linux Micro 6.2Package registry (OSV)
suse:kernel-default6.12.0-160000.40.1 · SUSE:Linux Micro 6.2Package registry (OSV)
suse:kernel-default-base6.12.0-160000.40.1.160000.2.29 · SUSE:Linux Micro 6.2Package registry (OSV)
suse:kernel-obs-build6.12.0-160000.40.1 · SUSE:Linux Micro Extras 6.2Package registry (OSV)
suse:kernel-rt6.12.0-160000.40.1 · SUSE:Linux Micro 6.2Package registry (OSV)
suse:kernel-source6.12.0-160000.40.1 · SUSE:Linux Micro 6.2Package registry (OSV)
suse:kernel-syms6.12.0-160000.40.1 · SUSE:Linux Micro Extras 6.2Package 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.

No history yet (it accumulates with the daily EPSS job).

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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

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.

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