CVE record · CVE-2023-28768

Improper handling of exceptional conditions in Zyxel XGS2220-30 firmware and others

CVSS 6.5 MediumEPSS 0.0030 · 23rd percentile

Published by the CVE Program (CNA: Zyxel) at 14 Aug 2023, 16:10 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	XGS2220-30 firmware	affected V4.80(ABXN.1) Other versions: unaffected
Zyxel	XMG1930-30 firmware	affected V4.80(ACAR.1) Other versions: unaffected
Zyxel	XS1930-10 firmware	affected V4.80(ABQE.1) Other versions: unaffected

Identifiers: CVE-2023-28768
CNA: Zyxel
Weakness (CWE): CWE-755
Tags: Zyxel XGS2220-30 firmware
Zyxel XMG1930-30 firmware
Zyxel XS1930-10 firmware
CWE-755
Published: 14 Aug 2023
Updated: 1 Oct 2024

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
6.5	Medium	3.1	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CNA (Zyxel)

CISA KEV Not listed.
EPSS 0.0030, the 23rd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 14 Aug 2023. New records show when each source confirmed them.

Sources

References from the CNA

www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-dos-vulnerability-of-xgs2220-xmg1930-and-xs1930-series-switches 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.