What is CVE-2019-19823?

CVE-2019-19823 is a high-severity vulnerability in Ciktel Mesh Router, classified under Insufficiently Protected Credentials. CVSS score: 7.5/10. Published 2020-01-27.

How severe is CVE-2019-19823?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2019-19823 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Ciktel Mesh Router

CVE-2019-19823

A certain router administration interface (that includes Realtek APMIB 0.11f for Boa 0.94.14rc21) stores cleartext administrative passwords in flash memory and in a file. This affects TOTOLINK A3002RU through 2.0.0, A702R through 2.1.3, N301RT through 2.1.6, N302R through 3.4.0, N300RT through 3.4.0, N200RE through 4.0.0, N150RT through 3.4.0, and N100RE through 3.4.0; Rutek RTK 11N AP through 2019-12-12; Sapido GR297n through 2019-12-12; CIK TELECOM MESH ROUTER through 2019-12-12; KCTVJEJU Wireless AP through 2019-12-12; Fibergate FGN-R2 through 2019-12-12; Hi-Wifi MAX-C300N through 2019-12-12; HCN MAX-C300N through 2019-12-12; T-broad GN-866ac through 2019-12-12; Coship EMTA AP through 2019-12-12; and IO-Data WN-AC1167R through 2019-12-12.

Published 2020-01-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.064 (93.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.064 · newest: 0.064 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-522 — Insufficiently Protected Credentials

Public proof-of-concept exploits

References

github.com/Saturn49/wecb/blob/755ce19a493c78270c04b5aaf39664f0cddbb420/rtl819x/… (Third Party Advisory)
opensource.actiontec.com/sourcecode/wcb3000x/wecb3000n_gpl_0.16.8.4.tgz (Exploit, Third Party Advisory)
sploit.tech (Third Party Advisory)
seclists.org/fulldisclosure/2020/Jan/36 (mailing-list, Mailing List, Third Party Advisory)
packetstormsecurity.com/files/156083/Realtek-SDK-Information-Disclosure-Code-Ex… (Exploit, VDB Entry, Third Party Advisory)
seclists.org/fulldisclosure/2020/Jan/38 (mailing-list, Exploit, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2019-19823?: CVE-2019-19823 is a high-severity vulnerability in Ciktel Mesh Router, classified under Insufficiently Protected Credentials. CVSS score: 7.5/10. Published 2020-01-27.
How severe is CVE-2019-19823?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2019-19823 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.