Is CVE-2021-22679 in the CISA KEV catalog?

No. CVE-2021-22679 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-22679?

CVE-2021-22679 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2021-22679?

CVE-2021-22679 has an EPSS score of 1.75% (75th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-22679?

Upgrade simplelink cc13x0 software development kit to 4.10.03 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2021-22679

CRITICALEPSS 75th pctl

9.8

CVSS v3

NVD

Description

The affected product is vulnerable to an integer overflow while processing HTTP headers, which may allow an attacker to remotely execute code on the SimpleLink Wi-Fi (MSP432E4 SDK: v4.20.00.12 and prior, CC32XX SDK v4.30.00.06 and prior, CC13X0 SDK versions prior to v4.10.03, CC13X2 and CC26XX SDK versions prior to v4.40.00, CC3200 SDK v1.5.0 and prior, CC3100 SDK v1.3.0 and prior).

CWE-190Integer Overflow

How to fix

Remediation Available

simplelink cc13x0 software development kitNVD

Affected:< 4.10.03Fixed in:4.10.03CVE-2021-22679derived from NVD

simplelink cc13x2 software development kitNVD

Affected:< 4.40.00Fixed in:4.40.00CVE-2021-22679derived from NVD

simplelink cc26xx software development kitNVD

Affected:< 4.40.00Fixed in:4.40.00CVE-2021-22679derived 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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.75%probability of exploitation in 30 days

75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Third-Party Advisory1

us-cert.cisa.gov

Related Vulnerabilities

Other CWE-190 (Integer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix
CVE-2019-11477	High	7.5	99%	-	Fix
CVE-2023-44443	High	7.8	94%	-	Fix
CVE-2014-0569	High	9.3	90%	-	-
CVE-2017-3599	High	7.5	90%	-	Fix
CVE-2023-21716	Critical	9.8	82%	-	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 2024-11-21.