CVE record · CVE-2026-107441

Out-of-bounds write in Zyxel GS1900-24E firmware and others

CVSS 8.8 HighEPSS 0.0029 · 22nd percentile

Published by the CVE Program (CNA: Zyxel) at 3 Nov 2026, 01:41 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Zyxel	GS1900-24E firmware	affected <= 2.90(AAHK.2)C0 Other versions: unaffected
Zyxel	GS1900-8 firmware	affected <= 2.90(AAHH.2)C0 Other versions: unaffected
Zyxel	GS1900-8HP firmware	affected <= 2.90(AAHI.2)C0 Other versions: unaffected
Zyxel	GS1900-10HP firmware	affected <= 2.90(AAZI.2)C0 Other versions: unaffected
Zyxel	GS1900-16 firmware	affected <= 2.90(AAHJ.2)C0 Other versions: unaffected
Zyxel	GS1900-24 firmware	affected <= 2.90(AAHL.2)C0 Other versions: unaffected
Zyxel	GS1900-24EP firmware	affected <= 2.90(ABTO.2)C0 Other versions: unaffected
Zyxel	GS1900-HPv2 firmware	affected <= 2.90(ABTP.2)C0 Other versions: unaffected
Zyxel	GS1900-48 firmware	affected <= 2.90(AAHN.2)C0 Other versions: unaffected
Zyxel	GS1900-48HPv2 firmware	affected <= 2.90(ABTQ.2)C0 Other versions: unaffected

Identifiers: CVE-2026-107441
CNA: Zyxel
Weakness (CWE): CWE-787
Tags: Zyxel GS1900-24E firmware
Zyxel GS1900-8 firmware
Zyxel GS1900-8HP firmware
Zyxel GS1900-10HP firmware
Zyxel GS1900-16 firmware
Zyxel GS1900-24 firmware
Zyxel GS1900-24EP firmware
Zyxel GS1900-HPv2 firmware
Memory corruption
Published: 3 Nov 2026
Updated: 5 Nov 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.8	High	3.1	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CNA (Zyxel)

CISA KEV Not listed.
EPSS 0.0029, the 22nd percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

3 Nov 2026, 01:41 UTC Confirmed by the CVE List
3 Nov 2026, 01:52 UTC First seen by agentprime
3 Nov 2026, 02:16 UTC Confirmed by NVD

Sources

References from the CNA

www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-out-of-bounds-write-vulnerability-in-gs1900-series-switches-11-03-2026 vendor-advisory

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.