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NVD / CVE Program· CNA mitre

CVE-2020-26140: An issue was discovered in the ALFA Windows 10 driver 6.1316.1209 for AWUS036H.

MediumCVSS 6.5 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 27/100)

  • 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: 2.9% (FIRST EPSS); higher than 87.2% of all records.
  • Someone on the same network segment can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: kernel-tools-libs-devel (AlmaLinux:8) 4.18.0-348.el8; bpftool (Red Hat:enterprise_linux:8::baseos) 0:4.18.0-348.el8; bpftool-debuginfo (Red Hat:enterprise_linux:8::baseos) 0:4.18.0-348.el8.
  • Mentioned 2 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to kernel-tools-libs-devel (AlmaLinux:8) 4.18.0-348.el8; bpftool (Red Hat:enterprise_linux:8::baseos) 0:4.18.0-348.el8; bpftool-debuginfo (Red Hat:enterprise_linux:8::baseos) 0:4.18.0-348.el8 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

An issue was discovered in the ALFA Windows 10 driver 6.1316.1209 for AWUS036H. The WEP, WPA, WPA2, and WPA3 implementations accept plaintext frames in a protected Wi-Fi network. An adversary can abuse this to inject arbitrary data frames independent of the network configuration.

Published
May 11, 2021
Updated
Oct 8, 2026
EPSS
2.9% · 87th percentile

Report tools

JSON

Action score

27

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.9%

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.

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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
alfaawus036h firmware
alfaawus036h
cisco1109-2p
siemensscalance w1748-1 firmware
siemensscalance w1748-1
siemensscalance w1750d firmware
siemensscalance w1750d
siemensscalance w1788-1 firmware
siemensscalance w1788-1
siemensscalance w1788-2 firmware
siemensscalance w1788-2
siemensscalance w1788-2ia firmware

and 188 more

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Affected versions

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

  • alfa awus036h firmware6.1316.1209
  • arista c-100 firmwareall versions
  • arista c-110 firmwareall versions
  • arista c-120 firmwareall versions
  • arista c-130 firmwareall versions
  • arista c-200 firmwareall versions
  • arista c-230 firmwareall versions
  • arista c-235 firmwareall versions
  • arista c-250 firmwareall versions
  • arista c-260 firmwareall versions
  • arista c-65 firmwareall versions
  • arista c-75 firmwareall versions
  • arista o-105 firmwareall versions
  • arista o-90 firmwareall versions
  • arista w-118 firmwareall versions
  • arista w-68 firmwareall versions
  • cisco 1100 firmwareall versions
  • cisco 1100-4p firmwareall versions
  • cisco 1100-8p firmwareall versions
  • cisco 1101-4p firmwareall versions

Package-level exposure

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

EcosystemPackageAffected rangeFix
AlmaLinux:8kernel-tools-libs-develbefore 4.18.0-348.el84.18.0-348.el8
Red Hat:enterprise_linux:8::baseosbpftoolbefore 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseosbpftool-debuginfobefore 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernelbefore 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernel-abi-stablelistsbefore 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernel-corebefore 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernel-debugbefore 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernel-debug-corebefore 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernel-debug-debuginfobefore 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernel-debug-develbefore 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernel-debug-modulesbefore 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernel-debug-modules-extrabefore 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernel-debuginfobefore 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernel-debuginfo-common-aarch64before 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernel-debuginfo-common-ppc64lebefore 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernel-debuginfo-common-s390xbefore 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernel-debuginfo-common-x86_64before 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernel-develbefore 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernel-docbefore 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernel-modulesbefore 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernel-modules-extrabefore 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernel-toolsbefore 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernel-tools-debuginfobefore 0:4.18.0-348.el80:4.18.0-348.el8
Red Hat:enterprise_linux:8::baseoskernel-tools-libsbefore 0:4.18.0-348.el80:4.18.0-348.el8

+26

Same product

alfa: all records

Other highest-scoring records for the same primary product.

  • CVE-2020-26143An issue was discovered in the ALFA Windows 10 driver 1030.36.604 for AWUS036ACH.
    27Monitor
  • CVE-2020-26141An issue was discovered in the ALFA Windows 10 driver 6.1316.1209 for AWUS036H.
    27Monitor

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-tools-libs-devel4.18.0-348.el8 · AlmaLinux:8Package registry (OSV)
red hat:kernel-rt0:4.18.0-348.rt7.130.el8 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-core0:4.18.0-348.rt7.130.el8 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug0:4.18.0-348.rt7.130.el8 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug-core0:4.18.0-348.rt7.130.el8 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug-debuginfo0:4.18.0-348.rt7.130.el8 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug-devel0:4.18.0-348.rt7.130.el8 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug-kvm0:4.18.0-348.rt7.130.el8 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug-modules0:4.18.0-348.rt7.130.el8 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug-modules-extra0:4.18.0-348.rt7.130.el8 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debuginfo0:4.18.0-348.rt7.130.el8 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debuginfo-common-x86_640:4.18.0-348.rt7.130.el8 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-devel0:4.18.0-348.rt7.130.el8 · Red Hat:enterprise_linux:8::nfvPackage 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 on the same network segment can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
high · data or configuration can be modified
Availability
none
Attack vector
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
High
Availability impact
None

Weakness class (CWE)

CWE-327 · Use of a Broken or Risky Cryptographic Algorithm

CVSS vector

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

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.

Change log

  1. SSVC exploitation— → none
  2. 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