How severe is CVE-2019-19823?

CVE-2019-19823 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 high, integrity none, and availability none.

Is CVE-2019-19823 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-19823?

CVE-2019-19823 primarily affects Totolink A3002ru Firmware. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-19823?

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-2019-19823 published?

CVE-2019-19823 was published on 2020-01-27 and last updated on 2026-06-17.

CVE-2019-19823

CVE-2019-19823 is a high-severity vulnerability in Totolink A3002ru Firmware 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-522.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-522
Affected product: Totolink A3002ru Firmware
Published: 2020-01-27
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2019-19823?: CVE-2019-19823 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 high, integrity none, and availability none.
Is CVE-2019-19823 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-19823?: CVE-2019-19823 primarily affects Totolink A3002ru Firmware. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-19823?: 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-2019-19823 published?: CVE-2019-19823 was published on 2020-01-27 and last updated on 2026-06-17.

References

Affected products (18)

cpe:2.3:o:totolink:a3002ru_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a702r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:totolink:n302r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:totolink:n300rt_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:totolink:n200re_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:totolink:n150rt_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:totolink:n100re_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:realtek:rtk_11n_ap_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sapido:gr297n_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ciktel:mesh_router_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:kctvjeju:wireless_ap_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:fg-products:fgn-r2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hiwifi:max-c300n_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tbroad:gn-866ac_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:coship:emta_ap_firmwre:*:*:*:*:*:*:*:*
cpe:2.3:o:iodata:wn-ac1167r_firmwre:*:*:*:*:*:*:*:*
cpe:2.3:o:hcn_max-c300n_project:hcn_max-c300n_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:totolink:n301rt_firmware:*:*:*:*:*:*:*:*

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