Is CVE-2017-18739 in the CISA KEV catalog?

No. CVE-2017-18739 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-18739?

CVE-2017-18739 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2017-18739?

CVE-2017-18739 has an EPSS score of 0.57% (43th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-18739?

Upgrade r6220 firmware to 1.1.0.50 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2017-18739

HIGH

8.8

CVSS v3

NVD

Description

Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects R6220 before V1.1.0.50, R7800 before V1.0.2.36, WNDR3400v3 before 1.0.1.14, and WNDR3700v5 before V1.1.0.48.

CWE-120Classic Buffer Overflow

How to fix

Remediation Available

r6220 firmwareNVD

Affected:< 1.1.0.50Fixed in:1.1.0.50CVE-2017-18739derived from NVD

r7800 firmwareNVD

Affected:< 1.0.2.36Fixed in:1.0.2.36CVE-2017-18739derived from NVD

wndr3400 firmwareNVD

Affected:< 1.0.1.14Fixed in:1.0.1.14CVE-2017-18739derived from NVD

wndr3700 firmwareNVD

Affected:< 1.1.0.48Fixed in:1.1.0.48CVE-2017-18739derived 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 ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.57%probability of exploitation in 30 days

43rdpercentile

Moderate risk: more likely to be exploited than 43% of all known CVEs.

References

Vendor Advisory1

kb.netgear.com

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0195	Medium	6.8	100%	-	Fix
CVE-2017-7269	Critical	9.8	100%	KEV	-
CVE-2019-11043	High	8.7	99%	KEV + Ransom	Fix
CVE-2011-4862	High	10.0	95%	-	Fix
CVE-2007-5659	High	7.8	94%	KEV	Fix
CVE-2022-3786	High	7.5	91%	-	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.