CVE & CISA-KEV Catalog

CVE-2023-6398

HIGH
7.2
CVSS v3
NVD

Description

A post-authentication command injection vulnerability in the file upload binary in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1, USG FLEX H series firmware versions from 1.10 through 1.10 Patch 1, NWA50AX firmware versions through 6.29(ABYW.3), WAC500 firmware versions through 6.65(ABVS.1), WAX300H firmware versions through 6.60(ACHF.1), and WBE660S firmware versions through 6.65(ACGG.1) could allow an authenticated attacker with administrator privileges to execute some operating system (OS) commands on an affected device via FTP.

CWE-78OS Command Injection

How to fix

Remediation Available
atp100 firmwareNVD
Affected:>= 4.32, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
atp100w firmwareNVD
Affected:>= 4.32, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
atp200 firmwareNVD
Affected:>= 4.32, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
atp500 firmwareNVD
Affected:>= 4.32, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
atp700 firmwareNVD
Affected:>= 4.32, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
atp800 firmwareNVD
Affected:>= 4.32, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
nwa110ax firmwareNVD
Affected:< 6.70(abtg.2)Fixed in:6.70(abtg.2)CVE-2023-6398derived from NVD
nwa1123acv3 firmwareNVD
Affected:< 6.70(abvt.1)Fixed in:6.70(abvt.1)CVE-2023-6398derived from NVD
nwa210ax firmwareNVD
Affected:< 6.70(abtd.2)Fixed in:6.70(abtd.2)CVE-2023-6398derived from NVD
nwa220ax-6e firmwareNVD
Affected:< 6.70(acco.1)Fixed in:6.70(acco.1)CVE-2023-6398derived from NVD
nwa50ax-pro firmwareNVD
Affected:< 6.80(acge.0)Fixed in:6.80(acge.0)CVE-2023-6398derived from NVD
nwa50ax firmwareNVD
Affected:< 6.29(abyw.4)Fixed in:6.29(abyw.4)CVE-2023-6398derived from NVD
nwa55axe firmwareNVD
Affected:< 6.29(abzl.4)Fixed in:6.29(abzl.4)CVE-2023-6398derived from NVD
nwa90ax-pro firmwareNVD
Affected:< 6.80(acgf.0)Fixed in:6.80(acgf.0)CVE-2023-6398derived from NVD
nwa90ax firmwareNVD
Affected:< 6.29(accv.4)Fixed in:6.29(accv.4)CVE-2023-6398derived from NVD
usg20-vpn firmwareNVD
Affected:>= 4.16, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
usg20w-vpn firmwareNVD
Affected:>= 4.16, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
usg flex 100 firmwareNVD
Affected:>= 4.50, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
usg flex 100ax firmwareNVD
Affected:>= 4.50, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
usg flex 100h firmwareNVD
Affected:>= 4.50, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
usg flex 100w firmwareNVD
Affected:>= 4.50, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
usg flex 200 firmwareNVD
Affected:>= 4.50, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
usg flex 200h firmwareNVD
Affected:>= 4.50, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
usg flex 200hp firmwareNVD
Affected:>= 4.50, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
usg flex 500 firmwareNVD
Affected:>= 4.50, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
usg flex 500h firmwareNVD
Affected:>= 4.50, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
usg flex 50 firmwareNVD
Affected:>= 4.16, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
usg flex 50w firmwareNVD
Affected:>= 4.16, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
usg flex 700 firmwareNVD
Affected:>= 4.50, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
usg flex 700h firmwareNVD
Affected:>= 4.50, < 5.37Fixed in:5.37CVE-2023-6398derived from NVD
wac500 firmwareNVD
Affected:< 6.70(abvs.1)Fixed in:6.70(abvs.1)CVE-2023-6398derived from NVD
wac500h firmwareNVD
Affected:< 6.70(abwa.1)Fixed in:6.70(abwa.1)CVE-2023-6398derived from NVD
wax300h firmwareNVD
Affected:< 6.70(achf.1)Fixed in:6.70(achf.1)CVE-2023-6398derived from NVD
wax510d firmwareNVD
Affected:< 6.70(abtf.2)Fixed in:6.70(abtf.2)CVE-2023-6398derived from NVD
wax610d firmwareNVD
Affected:< 6.70(abte.2)Fixed in:6.70(abte.2)CVE-2023-6398derived from NVD
wax620d-6e firmwareNVD
Affected:< 6.70(accn.1)Fixed in:6.70(accn.1)CVE-2023-6398derived from NVD
wax630s firmwareNVD
Affected:< 6.70(abzd.2)Fixed in:6.70(abzd.2)CVE-2023-6398derived from NVD
wax640s-6e firmwareNVD
Affected:< 6.70(accm.1)Fixed in:6.70(accm.1)CVE-2023-6398derived from NVD
wax650s firmwareNVD
Affected:< 6.70(abrm.2)Fixed in:6.70(abrm.2)CVE-2023-6398derived from NVD
wax655e firmwareNVD
Affected:< 6.70(acdo.1)Fixed in:6.70(acdo.1)CVE-2023-6398derived from NVD
wbe660s firmwareNVD
Affected:< 6.70(acgg.2)Fixed in:6.70(acgg.2)CVE-2023-6398derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

1.33%probability of exploitation in 30 days
68thpercentile

Moderate risk: more likely to be exploited than 68% of all known CVEs.

References

Vendor Advisory1

Related Vulnerabilities

Other CWE-78 (OS Command Injection) vulnerabilities, ordered by exploit likelihood. View all

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CVE-2021-1498Critical9.8100%KEVFix
CVE-2014-6271Critical9.8100%KEVFix
CVE-2019-16920Critical9.8100%KEV-
CVE-2022-44877Critical9.8100%KEVFix
CVE-2020-8515Critical9.8100%KEV-
CVE-2020-9054Critical9.8100%KEVFix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-01-21.