CVE-2018-14336: tp-link wr840n_firmware Improper Input Validation
CVSS: 7.5v3.0HighModified
Published 19-07-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-14336 is a high (CVSS 7.5) Improper Input Validation vulnerability in tp-link wr840n_firmware. EPSS estimates a 8.19% chance of exploitation in the next 30 days, higher than 94.8% of scored vulnerabilities. 2 public exploits are recorded.
CVSS score
7.5/10
010
High · v3.0 (NVD)EPSS score
8.19%
0%100%
Low · -0.10 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference, exploit-database
Timeline
- 19-07-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesSingle source
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
8.19%
Chance of exploitation in the next 30 days
Percentile
95%
Versus all other CVEs
30-day change
-0.10 pp
From 8.30% on 20-09-2026
20-09-202620-10-2026
EPSS score8.19%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (hackingvila.wordpress.com)
Maturity: unknown
TP-Link TL-WR840N - Denial of Service
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Tp-link1 product
1 vendor · 1 product
References
2 links- hackingvila.wordpress.com/2018/07/17/cve-2018-14336-tp-link-wireless-n-router-wr840n-vulnerability/X Refsource MISCExploitThird Party Advisory