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CVE-2026-7273: what it is, who is affected and what to do
Binarly found that Zyxel GS1900 switches fixed for CVE-2026-7273 are still open to an exploit used in the wild. The exploit relies on a different flaw, CVE-2026-107441, which the patch did not fix. CISA lists CVE-2026-7273 as known exploited.
- Scores and exploitation. The stories below cover this flaw together with others, so the Brief does not give its scores here: check the records below.
- Records. CVE-2026-7273 on the National Vulnerability Database · CISA’s known exploited catalog
The story
Critical Known exploited
Patched Zyxel GS1900 switches still open to exploit used in attacks
Binarly found that Zyxel GS1900 switches fixed for CVE-2026-7273 are still open to an exploit used in the wild. The exploit relies on a different flaw, CVE-2026-107441, which the patch did not fix.