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CVE-2022-1679· NVD / CVE Program· CNA redhat

A use-after-free flaw was found in the Linux kernel’s Atheros wireless adapter driver in the way a user forces the ath9k_htc_wait_for_target

Noroxi assessment

Priority: Monitor (action score 31/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.81% (FIRST EPSS); higher than 56.2% of all records.
  • 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: bpftool (AlmaLinux:8) 4.18.0-477.10.1.el8_8; kernel (AlmaLinux:8) 4.18.0-477.10.1.el8_8; kernel-abi-stablelists (AlmaLinux:8) 4.18.0-477.10.1.el8_8.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to bpftool (AlmaLinux:8) 4.18.0-477.10.1.el8_8; kernel (AlmaLinux:8) 4.18.0-477.10.1.el8_8; kernel-abi-stablelists (AlmaLinux:8) 4.18.0-477.10.1.el8_8 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

A use-after-free flaw was found in the Linux kernel’s Atheros wireless adapter driver in the way a user forces the ath9k_htc_wait_for_target function to fail with some input messages. This flaw allows a local user to crash or potentially escalate their privileges on the system.

HighCVSS 7.8 · v3.1—Proof of concept Fix available
Published
May 16, 2022
Updated
Oct 14, 2026
EPSS
0.8% · 56th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.8%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

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

Follow CVE-2022-1679

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
debiandebian linux
netapph410c firmware
netapph410c
netapph300s firmware
netapph300s
netapph500s firmware
netapph500s
netapph700s firmware
netapph700s
netapph300e firmware
netapph300e

and 6 more

Affected versions

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

  • debian debian linux10.0
  • linux linux kernel4.15 and later · before 4.19.256
  • linux linux kernel4.20 and later · before 5.4.211
  • linux linux kernel5.5 and later · before 5.10.137
  • linux linux kernel2.6.35 and later · before 4.14.291
  • linux linux kernel5.16 and later · before 5.18.18
  • linux linux kernel5.19 and later · before 5.19.2
  • linux linux kernel5.11 and later · before 5.15.61
  • netapp h300e firmwareall versions
  • netapp h300s firmwareall versions
  • netapp h410c firmwareall versions
  • netapp h410s firmwareall versions
  • netapp h500e firmwareall versions
  • netapp h500s firmwareall versions
  • netapp h700e firmwareall versions
  • netapp h700s firmwareall versions

Versions reported by the vendor

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

  • n/a Kernel

    • Linux kernel 5.18-rc7affected

Package-level exposure

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

EcosystemPackageAffected rangeFix
AlmaLinux:8bpftoolbefore 4.18.0-477.10.1.el8_84.18.0-477.10.1.el8_8
AlmaLinux:8kernelbefore 4.18.0-477.10.1.el8_84.18.0-477.10.1.el8_8
AlmaLinux:8kernel-abi-stablelistsbefore 4.18.0-477.10.1.el8_84.18.0-477.10.1.el8_8
AlmaLinux:8kernel-corebefore 4.18.0-477.10.1.el8_84.18.0-477.10.1.el8_8
AlmaLinux:8kernel-cross-headersbefore 4.18.0-477.10.1.el8_84.18.0-477.10.1.el8_8
AlmaLinux:8kernel-debugbefore 4.18.0-477.10.1.el8_84.18.0-477.10.1.el8_8
AlmaLinux:8kernel-debug-corebefore 4.18.0-477.10.1.el8_84.18.0-477.10.1.el8_8
AlmaLinux:8kernel-debug-develbefore 4.18.0-477.10.1.el8_84.18.0-477.10.1.el8_8
AlmaLinux:8kernel-debug-modulesbefore 4.18.0-477.10.1.el8_84.18.0-477.10.1.el8_8
AlmaLinux:8kernel-debug-modules-extrabefore 4.18.0-477.10.1.el8_84.18.0-477.10.1.el8_8
AlmaLinux:8kernel-develbefore 4.18.0-477.10.1.el8_84.18.0-477.10.1.el8_8
AlmaLinux:8kernel-docbefore 4.18.0-477.10.1.el8_84.18.0-477.10.1.el8_8
AlmaLinux:8kernel-modulesbefore 4.18.0-477.10.1.el8_84.18.0-477.10.1.el8_8
AlmaLinux:8kernel-modules-extrabefore 4.18.0-477.10.1.el8_84.18.0-477.10.1.el8_8
AlmaLinux:8kernel-rtbefore 4.18.0-477.10.1.rt7.274.el8_84.18.0-477.10.1.rt7.274.el8_8
AlmaLinux:8kernel-rt-corebefore 4.18.0-477.10.1.rt7.274.el8_84.18.0-477.10.1.rt7.274.el8_8
AlmaLinux:8kernel-rt-debugbefore 4.18.0-477.10.1.rt7.274.el8_84.18.0-477.10.1.rt7.274.el8_8
AlmaLinux:8kernel-rt-debug-corebefore 4.18.0-477.10.1.rt7.274.el8_84.18.0-477.10.1.rt7.274.el8_8
AlmaLinux:8kernel-rt-debug-develbefore 4.18.0-477.10.1.rt7.274.el8_84.18.0-477.10.1.rt7.274.el8_8
AlmaLinux:8kernel-rt-debug-kvmbefore 4.18.0-477.10.1.rt7.274.el8_84.18.0-477.10.1.rt7.274.el8_8
AlmaLinux:8kernel-rt-debug-modulesbefore 4.18.0-477.10.1.rt7.274.el8_84.18.0-477.10.1.rt7.274.el8_8
AlmaLinux:8kernel-rt-debug-modules-extrabefore 4.18.0-477.10.1.rt7.274.el8_84.18.0-477.10.1.rt7.274.el8_8
AlmaLinux:8kernel-rt-develbefore 4.18.0-477.10.1.rt7.274.el8_84.18.0-477.10.1.rt7.274.el8_8
AlmaLinux:8kernel-rt-kvmbefore 4.18.0-477.10.1.rt7.274.el8_84.18.0-477.10.1.rt7.274.el8_8

+96

Other highest-scoring records for the same primary product.

  • 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
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now

Published before and after this one in the same product

  • ← EarlierCVE-2022-1516May 5, 2022 · A NULL pointer dereference flaw was found in the Linux kernel’s X.25 set of standardized network protocols functionality in the way a user t
    22Monitor
  • ← EarlierCVE-2022-30594May 12, 2022 · The Linux kernel before 5.17.2 mishandles seccomp permissions.
    31Monitor
  • Later →CVE-2022-1116May 17, 2022 · Integer Overflow or Wraparound vulnerability in io_uring of Linux Kernel allows local attacker to cause memory corruption and escalate privi
    31Monitor

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
almalinux:kernel-rt5.14.0-162.6.1.rt21.168.el9_1 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-core5.14.0-162.6.1.rt21.168.el9_1 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-debug5.14.0-162.6.1.rt21.168.el9_1 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-debug-core5.14.0-162.6.1.rt21.168.el9_1 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-debug-devel5.14.0-162.6.1.rt21.168.el9_1 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-debug-kvm5.14.0-162.6.1.rt21.168.el9_1 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-debug-modules5.14.0-162.6.1.rt21.168.el9_1 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-debug-modules-extra5.14.0-162.6.1.rt21.168.el9_1 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-devel5.14.0-162.6.1.rt21.168.el9_1 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-kvm5.14.0-162.6.1.rt21.168.el9_1 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-modules5.14.0-162.6.1.rt21.168.el9_1 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-modules-extra5.14.0-162.6.1.rt21.168.el9_1 · AlmaLinux:9Package registry (OSV)
debian:linux5.19.6-1 · Debian:12Package registry (OSV)
debian:linux-5.105.10.149-2~deb10u1 · Debian:10Package registry (OSV)
opensuse:kernel-azure5.3.18-150300.38.69.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-source-azure5.3.18-150300.38.69.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-syms-azure5.3.18-150300.38.69.1 · openSUSE:Leap 15.3Package registry (OSV)
red hat:kernel-rt0:5.14.0-162.6.1.rt21.168.el9_1 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-core0:5.14.0-162.6.1.rt21.168.el9_1 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-debug0:5.14.0-162.6.1.rt21.168.el9_1 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-debug-core0:5.14.0-162.6.1.rt21.168.el9_1 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-debug-debuginfo0:5.14.0-162.6.1.rt21.168.el9_1 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-debug-devel0:5.14.0-162.6.1.rt21.168.el9_1 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-debug-kvm0:5.14.0-162.6.1.rt21.168.el9_1 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-debug-modules0:5.14.0-162.6.1.rt21.168.el9_1 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-debug-modules-extra0:5.14.0-162.6.1.rt21.168.el9_1 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-debuginfo0:5.14.0-162.6.1.rt21.168.el9_1 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-debuginfo-common-x86_640:5.14.0-162.6.1.rt21.168.el9_1 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-devel0:5.14.0-162.6.1.rt21.168.el9_1 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
suse:kernel-azure5.3.18-150300.38.69.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP3Package registry (OSV)

+14

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×2

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:02022-10-25
Proof-of-concept repository on GitHubstars:02023-09-12

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.

  1. Published
  2. First PoC+161 d
  3. TodayOct 19, 2026+1617 d
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.

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
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
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-416 · Use After Free

CVSS vector

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

nvd-primary

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

c
free(dev->buf);/* ... another thread is still running ... */process(dev->buf);

Fixed

c
lock(&dev->lock);free(dev->buf);dev->buf = NULL;unlock(&dev->lock);

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

All records