CVE-2019-15803

mediumPriorität · verfolgen · 36EPSS 0.013 · 71. PerzentilEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.32% (71st) EPSS

CVSS 6.4 · medium

Is it mine?

19 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · bewertet 2026-10-27

An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. Through an undocumented sequence of keypresses, undocumented functionality is triggered. A diagnostics shell is triggered via CTRL-ALT-t, which prompts for the password returned by fds_sys_passDebugPasswd_ret(). The firmware contains access control checks that determine if remote users are allowed to access this functionality. The function that performs this check (fds_sys_remoteDebugEnable_ret in libfds.so) always return TRUE with no actual checks performed. The diagnostics menu allows for reading/writing arbitrary registers and various other configuration parameters which are believed to be related to the network interface chips.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

9.1

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–critical · 6.4–9.1

v2.06.4mediumAV:N/AC:L/Au:N/C:P/I:P/A:Nprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 4.9

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Nprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 5.2

v3.19.1criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.18.3highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-287USprimärCWE-20US

betroffene Produkte (19)

Betroffene Produkte und Versionsbereiche.

n/a n/a≤ n/aenisa_euvdEU
Zyxel Communications Corp. GS1900-10HP≤ 2.50(AAZI.0)C0fstec_bduRU
Zyxel Communications Corp. GS1900-16≤ 2.50(AAHJ.0)C0fstec_bduRU
Zyxel Communications Corp. GS1900-24≤ 2.50(AAHL.0)C0fstec_bduRU
Zyxel Communications Corp. GS1900-24E≤ 2.50(AAHK.0)C0fstec_bduRU
Zyxel Communications Corp. GS1900-24HP≤ 2.50(AAHM.0)C0fstec_bduRU
Zyxel Communications Corp. GS1900-48≤ 2.50(AAHN.0)C0fstec_bduRU
Zyxel Communications Corp. GS1900-48HP≤ 2.50(AAHO.0)C0fstec_bduRU
Zyxel Communications Corp. GS1900-8≤ 2.50(AAHH.0)C0fstec_bduRU
Zyxel Communications Corp. GS1900-8HP≤ 2.50(AAHI.0)C0fstec_bduRU
zyxel gs1900-10hp firmware< 2.50\(aazi.0\)c0nvdUScpe:2.3:o:zyxel:gs1900-10hp_firmware:*:*:*:*:*:*:*:*
zyxel gs1900-16 firmware< 2.50\(aahj.0\)c0nvdUScpe:2.3:o:zyxel:gs1900-16_firmware:*:*:*:*:*:*:*:*
zyxel gs1900-24 firmware< 2.50\(aahl.0\)c0nvdUScpe:2.3:o:zyxel:gs1900-24_firmware:*:*:*:*:*:*:*:*
zyxel gs1900-24e firmware< 2.50\(aahk.0\)c0nvdUScpe:2.3:o:zyxel:gs1900-24e_firmware:*:*:*:*:*:*:*:*
zyxel gs1900-24hp firmware< 2.50\(aahm.0\)c0nvdUScpe:2.3:o:zyxel:gs1900-24hp_firmware:*:*:*:*:*:*:*:*
zyxel gs1900-48 firmware< 2.50\(aahn.0\)c0nvdUScpe:2.3:o:zyxel:gs1900-48_firmware:*:*:*:*:*:*:*:*
zyxel gs1900-48hp firmware< 2.50\(aaho.0\)c0nvdUScpe:2.3:o:zyxel:gs1900-48hp_firmware:*:*:*:*:*:*:*:*
zyxel gs1900-8 firmware< 2.50\(aahh.0\)c0nvdUScpe:2.3:o:zyxel:gs1900-8_firmware:*:*:*:*:*:*:*:*
zyxel gs1900-8hp firmware< 2.50\(aahi.0\)c0nvdUScpe:2.3:o:zyxel:gs1900-8hp_firmware:*:*:*:*:*:*:*:*

auch bekannt als (4)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

veröffentlicht 2019-11-14geändert 2026-06-17

verwandt (7,714)

Verwandte Einträge.

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+7709 weitere

Referenzen (7)

Externe Belege — Patches, Meldungen, Analysen.

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