CVE-2026-7273
Possible ATT&CK Techniques 3AI
T1210 · Exploitation of Remote Services T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 10
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Zyxel | GS1900-10HP firmware | <= 2.90(AAZI.1)C0 | affected |
| Zyxel | GS1900-16 firmware | <= 2.90(AAHJ.1)C0 | affected |
| Zyxel | GS1900-24 firmware | <= 2.90(AAHL.1)C0 | affected |
| Zyxel | GS1900-24E firmware | <= 2.90(AAHK.1)C0 | affected |
| Zyxel | GS1900-24EP firmware | <= 2.90(ABTO.1)C0 | affected |
| Zyxel | GS1900-24HPv2 firmware | <= 2.90(ABTP.1)C0 | affected |
| Zyxel | GS1900-48 firmware | <= 2.90(AAHN.1)C0 | affected |
| Zyxel | GS1900-48HPv2 firmware | <= 2.90(ABTQ.1)C0 | affected |
| Zyxel | GS1900-8 firmware | <= 2.90(AAHH.1)C0 | affected |
| Zyxel | GS1900-8HP firmware | <= 2.90(AAHI.1)C0 | affected |
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I. Basic Information for CVE-2026-7273
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
栈缓冲区溢出
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Zyxel | GS1900-48HPv2 firmware | <= 2.90(ABTQ.1)C0 | - | |
| Zyxel | GS1900-8 firmware | <= 2.90(AAHH.1)C0 | - | |
| Zyxel | GS1900-8HP firmware | <= 2.90(AAHI.1)C0 | - | |
| Zyxel | GS1900-10HP firmware | <= 2.90(AAZI.1)C0 | - | |
| Zyxel | GS1900-16 firmware | <= 2.90(AAHJ.1)C0 | - | |
| Zyxel | GS1900-24 firmware | <= 2.90(AAHL.1)C0 | - | |
| Zyxel | GS1900-24E firmware | <= 2.90(AAHK.1)C0 | - | |
| Zyxel | GS1900-24EP firmware | <= 2.90(ABTO.1)C0 | - | |
| Zyxel | GS1900-24HPv2 firmware | <= 2.90(ABTP.1)C0 | - | |
| Zyxel | GS1900-48 firmware | <= 2.90(AAHN.1)C0 | - |
II. Public POCs for CVE-2026-7273
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Vendor Advisories for CVE-2026-7273 (1)
IV. Related Vulnerabilities
Same weakness: CWE-121
- CVE-2026-57881
GV-LPC2011/LPC2211 - unauthorized stack-based buffer overflo - CVE-2026-57880
GV-LPC2011/LPC2211 - unauthorized buffer overflow via RTSP D - CVE-2026-57879
GV-LPC2011/LPC2211 - unauthorized buffer overflow via AuthMo - CVE-2026-57878
GV-LPC2011/LPC2211 - unauthorized buffer overflow vulnerabil - CVE-2026-56766
Hydra - Stack Buffer Overflow in NTLM Authentication Handler
V. Comments for CVE-2026-7273
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