CVE-2021-46122: tp-link tl-wr840n_firmware Classic Buffer Overflow
CVSS: 9.0v2.0HighModified
Published 18-04-2022Last modified 04-08-2024
Vulnerability summary
CVE-2021-46122 is a high (CVSS 9.0) Classic Buffer Overflow vulnerability in tp-link tl-wr840n_firmware. EPSS estimates a 1.55% chance of exploitation in the next 30 days, higher than 74.9% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
9.0/10
010
High · v2.0 (NVD)EPSS score
1.55%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 18-04-2022PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
Tp-Link TL-WR840N (EU) v6.20 Firmware (0.9.1 4.17 v0001.0 Build 201124 Rel.64328n) is vulnerable to Buffer Overflow via the Password reset feature.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.2Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 9.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
1.55%
Chance of exploitation in the next 30 days
Percentile
75%
Versus all other CVEs
30-day change
0.00 pp
From 1.55% on 21-09-2026
21-09-202621-10-2026
EPSS score1.55%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (k4m1ll0.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Tp-link1 product
- tl-wr840n_firmware0.9.1_4.17_v0001.0:build_201124_rel.64328n
1 vendor · 1 product
References
1 links- k4m1ll0.com/cve-tplink-tlwr840n-euV620-password-reset.htmlX Refsource MISCExploitThird Party Advisory