CVE-2026-107441High· 8.8▾ MidnightPoC availableAn out-of-bounds write vulnerability in the CGI program of Zyxel GS1900-24E firmware versions through 2.90(AAHK.2)C0 could allow an unauthenticated adjacent attacker to exploit the flaw and potentially execute OS commands via a crafted …
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 48.4 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 1 source. Availability, not in-the-wild use.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Nov 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.3%
1 GitHub repo (last check)
An out-of-bounds write vulnerability in the CGI program of Zyxel GS1900-24E firmware versions through 2.90(AAHK.2)C0 could allow an unauthenticated adjacent attacker to exploit the flaw and potentially execute OS commands via a crafted HTTP request.
gs1900-24e_firmware <= 2.90(AAHK.2)C0gs1900-8_firmware <= 2.90(AAHH.2)C0gs1900-8hp_firmware <= 2.90(AAHI.2)C0gs1900-10hp_firmware <= 2.90(AAZI.2)C0gs1900-16_firmware <= 2.90(AAHJ.2)C0gs1900-24_firmware <= 2.90(AAHL.2)C0gs1900-24ep_firmware <= 2.90(ABTO.2)C0gs1900-hpv2_firmware <= 2.90(ABTP.2)C0gs1900-48_firmware <= 2.90(AAHN.2)C0gs1900-48hpv2_firmware <= 2.90(ABTQ.2)C0Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2024-29972Critical· 9.8** UNSUPPORTED WHEN ASSIGNED ** The command injection vulnerability in the CGI program "remote_help-cgi" in Zyxel NAS326 firmware versions before V5.21(AAZF.17)C0 and NAS542 firmware versions before V5.21(ABAG.14)C0 could allow an unauth…
CVE-2021-22555High· 8.3A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c
CVE-2020-9054Critical· 9.8Multiple ZyXEL network-attached storage (NAS) devices running firmware version 5.21 contain a pre-authentication command injection vulnerability, which may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerabl…
CVE-2026-7273High· 8.8A 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 …
CVE-2022-0995High· 7.8An out-of-bounds (OOB) memory write flaw was found in the Linux kernel’s watch_queue event notification subsystem
CVE-2021-4034High· 7.8A local privilege escalation vulnerability was found on polkit's pkexec utility