Zyxel GS1900 zero-day exploited in wild despite patch
Attackers used CVE-2026-107441 to compromise nearly 1,000 Zyxel switches after it was misattributed to a patched flaw.
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Product
GS1900 series switches
- Mentions · 7d1
- Mentions · 30d2
- All mentions4
- First seenSep 21, 2026
- Last mentioned6d ago
Timeline
4 articles · newest firstZyxel GS1900 switches and APs hit by out-of-bounds write and buffer overflow
Zyxel security advisory AV26-1114 reports out-of-bounds write in GS1900 series switches and buffer overflow in APs FWA7 Security Routers; users should apply updates.
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CISA Warns of Zyxel GS1900 Switches Flaw Actively Exploited in Attacks
CISA added exploited Zyxel GS1900 buffer overflow CVE-2026-7273 to KEV, warning of unauthenticated command execution.
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CISA Adds One Known Exploited Vulnerability to Catalog
CISA added actively exploited Zyxel GS1900 stack buffer overflow CVE-2026-7273 to the Known Exploited Vulnerabilities catalog.
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Related CVEs
by mentions- CVE-2026-72733%8.8Zyxel GS1900 Series Switches Stack-Based Buffer Overflow Vulnerability
- Out-of-bounds write in Zyxel GS1900-24E CGI up to 2.90(AAHK.2)C0
Appears with
- Zyxelvendor · 4
- CISAorganization · 2
- Jitterlymalware · 1
- FWA7product · 1
- GreyNoisevendor · 1
- Sixzutmalware · 1
- APsproduct · 1
- Binarlyvendor · 1
- Canadian Centre for Cyber Securityvendor · 1
- Security Routersproduct · 1
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