Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Zyxel | GS1900-48HPv2 firmware | unaffected |
|
||||||
| Zyxel | GS1900-8 firmware | unaffected |
|
||||||
| Zyxel | GS1900-8HP firmware | unaffected |
|
||||||
| Zyxel | GS1900-10HP firmware | unaffected |
|
||||||
| Zyxel | GS1900-16 firmware | unaffected |
|
||||||
| Zyxel | GS1900-24 firmware | unaffected |
|
||||||
| Zyxel | GS1900-24E firmware | unaffected |
|
||||||
| Zyxel | GS1900-24EP firmware | unaffected |
|
||||||
| Zyxel | GS1900-24HPv2 firmware | unaffected |
|
||||||
| Zyxel | GS1900-48 firmware | unaffected |
|
Configuration 1 [-]
| AND |
|
Configuration 2 [-]
| AND |
|
Configuration 3 [-]
| AND |
|
Configuration 4 [-]
| AND |
|
Configuration 5 [-]
| AND |
|
Configuration 6 [-]
| AND |
|
Configuration 7 [-]
| AND |
|
Configuration 8 [-]
| AND |
|
Configuration 9 [-]
| AND |
|
Configuration 10 [-]
| AND |
|
No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Zyxel | Gs1900-10hp Firmware |
|
||||||||
| Zyxel | Gs1900-16 Firmware |
|
||||||||
| Zyxel | Gs1900-24 Firmware |
|
||||||||
| Zyxel | Gs1900-24e Firmware |
|
||||||||
| Zyxel | Gs1900-24ep Firmware |
|
||||||||
| Zyxel | Gs1900-24hpv2 Firmware |
|
||||||||
| Zyxel | Gs1900-48 Firmware |
|
||||||||
| Zyxel | Gs1900-48hpv2 Firmware |
|
||||||||
| Zyxel | Gs1900-8 Firmware |
|
||||||||
| Zyxel | Gs1900-8hp Firmware |
|
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is in the KEV database since Sept. 21, 2026.
Exploit prediction score: 2.7% (2.734% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| Title | CGI Buffer Overflow in Zyxel GS1900 Switches Enables Remote Command Execution |
| Type | Values Removed | Values Added |
|---|---|---|
| Title | CGI Buffer Overflow in Zyxel GS1900 Switches Enables Remote Command Execution |
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Zyxel GS1900 Switches Buffer Overflow Enables LAN Attacker to Execute OS Commands |
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Zyxel gs1900-10hp
Zyxel gs1900-16 Zyxel gs1900-24 Zyxel gs1900-24e Zyxel gs1900-24ep Zyxel gs1900-24hpv2 Zyxel gs1900-48 Zyxel gs1900-48hpv2 Zyxel gs1900-8 Zyxel gs1900-8hp |
|
| CPEs | cpe:2.3:h:zyxel:gs1900-10hp:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:gs1900-16:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:gs1900-24:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:gs1900-24e:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:gs1900-24ep:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:gs1900-24hpv2:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:gs1900-48:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:gs1900-48hpv2:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:gs1900-8:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:gs1900-8hp:-:*:*:*:*:*:*:* cpe:2.3:o:zyxel:gs1900-10hp_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:gs1900-16_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:gs1900-24_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:gs1900-24e_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:gs1900-24ep_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:gs1900-24hpv2_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:gs1900-48_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:gs1900-48hpv2_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:gs1900-8_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:gs1900-8hp_firmware:*:*:*:*:*:*:*:* |
|
| Vendors & Products |
Zyxel gs1900-10hp
Zyxel gs1900-16 Zyxel gs1900-24 Zyxel gs1900-24e Zyxel gs1900-24ep Zyxel gs1900-24hpv2 Zyxel gs1900-48 Zyxel gs1900-48hpv2 Zyxel gs1900-8 Zyxel gs1900-8hp |
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Zyxel GS1900 Switches Buffer Overflow Enables LAN Attacker to Execute OS Commands |
| Type | Values Removed | Values Added |
|---|---|---|
| References |
| |
| Metrics |
ssvc
|
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
kev
|
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Stack-Based Buffer Overflow in Zyxel GS1900 Switch Firmware |
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Stack-Based Buffer Overflow in Zyxel GS1900 Switch Firmware |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Zyxel
Zyxel gs1900-10hp Firmware Zyxel gs1900-16 Firmware Zyxel gs1900-24 Firmware Zyxel gs1900-24e Firmware Zyxel gs1900-24ep Firmware Zyxel gs1900-24hpv2 Firmware Zyxel gs1900-48 Firmware Zyxel gs1900-48hpv2 Firmware Zyxel gs1900-8 Firmware Zyxel gs1900-8hp Firmware |
|
| Vendors & Products |
Zyxel
Zyxel gs1900-10hp Firmware Zyxel gs1900-16 Firmware Zyxel gs1900-24 Firmware Zyxel gs1900-24e Firmware Zyxel gs1900-24ep Firmware Zyxel gs1900-24hpv2 Firmware Zyxel gs1900-48 Firmware Zyxel gs1900-48hpv2 Firmware Zyxel gs1900-8 Firmware Zyxel gs1900-8hp Firmware |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A stack-based buffer overflow vulnerability in the CGI program of Zyxel GS1900-48HPv2 firmware versions through 2.90(ABTQ.1)C0 could allow a LAN-based, unauthenticated attacker to exploit the flaw and potentially execute OS commands via a crafted HTTP request. | |
| Weaknesses | CWE-121 | |
| References |
| |
| Metrics |
cvssV3_1
|