How severe is CVE-2020-26144?

CVE-2020-26144 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2020-26144 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-26144?

CVE-2020-26144 primarily affects Samsung Galaxy I9305 Firmware. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-26144?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-26144 published?

CVE-2020-26144 was published on 2021-05-11 and last updated on 2026-06-17.

CVE-2020-26144

CVE-2020-26144 is a medium-severity vulnerability in Samsung Galaxy I9305 Firmware with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 3.3
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Samsung Galaxy I9305 Firmware
Published: 2021-05-11
Last modified: 2026-06-17

Description

An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3 implementations accept plaintext A-MSDU frames as long as the first 8 bytes correspond to a valid RFC1042 (i.e., LLC/SNAP) header for EAPOL. An adversary can abuse this to inject arbitrary network packets independent of the network configuration.

Frequently asked questions

What is CVE-2020-26144?: An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3 implementations accept plaintext A-MSDU frames as long as the first 8 bytes correspond to a valid RFC1042 (i.e., LLC/SNAP) header for EAPOL. An adversary can abuse this to inject arbitrary network packets independent of the network configuration.
How severe is CVE-2020-26144?: CVE-2020-26144 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2020-26144 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-26144?: CVE-2020-26144 primarily affects Samsung Galaxy I9305 Firmware. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-26144?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-26144 published?: CVE-2020-26144 was published on 2021-05-11 and last updated on 2026-06-17.

References

Affected products (18)

cpe:2.3:o:samsung:galaxy_i9305_firmware:4.4.4:*:*:*:*:*:*:*
cpe:2.3:o:arista:c-250_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:arista:c-260_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:arista:c-230_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:arista:c-235_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:arista:c-200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:arista:c-120_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:arista:c-130_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:arista:c-100_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:arista:c-110_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:arista:o-105_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:arista:w-118_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:arista:c-75_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arista:o-90_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arista:c-65_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arista:w-68_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_w700_ieee_802.11ax_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_w700_ieee_802.11n_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Samsung Galaxy I9305 Firmware

CVE-2020-26145 — Medium (CVSS 6.5): An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3 implementations accept…
CVE-2020-26146 — Medium (CVSS 5.3): An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices. The WPA, WPA2, and WPA3 implementations reassemble…

All CVEs affecting Samsung Galaxy I9305 Firmware →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →