Is CVE-2020-26146 in the CISA KEV catalog?

No. CVE-2020-26146 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-26146?

CVE-2020-26146 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2020-26146?

CVE-2020-26146 has an EPSS score of 5.62% (92th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-26146?

Upgrade c-100 firmware to 11.0.0-36 or later. Fixes are available for 12 affected products.

CVE & CISA-KEV Catalog

CVE-2020-26146

MEDIUMEPSS 92th pctl

5.3

CVSS v3

NVD

Description

An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices. The WPA, WPA2, and WPA3 implementations reassemble fragments with non-consecutive packet numbers. An adversary can abuse this to exfiltrate selected fragments. This vulnerability is exploitable when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used. Note that WEP is vulnerable to this attack by design.

CWE-20Improper Input Validation

How to fix

Remediation Available

c-100 firmwareNVD

Affected:< 11.0.0-36Fixed in:11.0.0-36CVE-2020-26146derived from NVD

c-110 firmwareNVD

Affected:< 11.0.0-36Fixed in:11.0.0-36CVE-2020-26146derived from NVD

c-120 firmwareNVD

Affected:< 11.0.0-36Fixed in:11.0.0-36CVE-2020-26146derived from NVD

c-130 firmwareNVD

Affected:< 11.0.0-36Fixed in:11.0.0-36CVE-2020-26146derived from NVD

c-200 firmwareNVD

Affected:< 11.0.0-36Fixed in:11.0.0-36CVE-2020-26146derived from NVD

c-230 firmwareNVD

Affected:< 10.0.1-31Fixed in:10.0.1-31CVE-2020-26146derived from NVD

c-235 firmwareNVD

Affected:< 10.0.1-31Fixed in:10.0.1-31CVE-2020-26146derived from NVD

c-250 firmwareNVD

Affected:< 10.0.1-31Fixed in:10.0.1-31CVE-2020-26146derived from NVD

c-260 firmwareNVD

Affected:< 10.0.1-31Fixed in:10.0.1-31CVE-2020-26146derived from NVD

o-105 firmwareNVD

Affected:< 11.0.0-36Fixed in:11.0.0-36CVE-2020-26146derived from NVD

scalance w1750d firmwareNVD

Affected:< 8.7.1.3Fixed in:8.7.1.3CVE-2020-26146derived from NVD

w-118 firmwareNVD

Affected:< 11.0.0-36Fixed in:11.0.0-36CVE-2020-26146derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorAdjacent

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

5.62%probability of exploitation in 30 days

92ndpercentile

High risk: more likely to be exploited than 92% of all known CVEs.

References

Third-Party Advisory6

Other references2

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-02.