How severe is CVE-2018-14336?

CVE-2018-14336 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-14336 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-14336?

CVE-2018-14336 affects Tp-link Wr840n. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-14336?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-14336 published?

CVE-2018-14336 was published on 2018-07-19 and last updated on 2026-06-17.

CVE-2018-14336

CVE-2018-14336 is a high-severity vulnerability in Tp-link Wr840n with a CVSS 3.x base score of 7.5. 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: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Tp-link Wr840n
Published: 2018-07-19
Last modified: 2026-06-17

Description

TP-Link WR840N devices allow remote attackers to cause a denial of service (connectivity loss) via a series of packets with random MAC addresses.

Frequently asked questions

What is CVE-2018-14336?: TP-Link WR840N devices allow remote attackers to cause a denial of service (connectivity loss) via a series of packets with random MAC addresses.
How severe is CVE-2018-14336?: CVE-2018-14336 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-14336 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-14336?: CVE-2018-14336 affects Tp-link Wr840n. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-14336?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-14336 published?: CVE-2018-14336 was published on 2018-07-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:h:tp-link:wr840n:-:*:*:*:*:*:*:*

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