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01 Record

CVE-2023-5797

An improper privilege management vulnerability in the debug CLI command of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50(W)

MediumPUBLISHEDCNA: Zyxel
CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

02 Description

An improper privilege management vulnerability in the debug CLI command of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50(W)

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.21% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 11.4% of scored records. A rank, not a probability.
NVD base score
5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-11-28 02:00Z2 YR AGO
Last updated
2024-12-02 19:31Z1 YR AGO
Reserved
2023-10-26
Assigning CNA
Zyxel
Record state
PUBLISHED
Severity
Medium (CVSS 5.5)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weaknesses
  • CWE-269Improper Privilege ManagementClass
Data version
5.1
Document digest
206072001e04aa8dbc7d826b58213354d164c1fe9000d53d59861d13a6780df7

05 Affected products

VendorProductVersionsPlatforms
ZyxelATP series firmwareversions 4.32 through 5.37—
ZyxelUSG FLEX series firmwareversions 4.50 through 5.37—
ZyxelUSG FLEX 50(W) series firmwareversions 4.16 through 5.37—
ZyxelUSG20(W)-VPN series firmwareversions 4.16 through 5.37—
ZyxelVPN series firmwareversions 4.30 through 5.37—
ZyxelNWA50AX firmware6.29(ABYW.2)—
ZyxelWAC500 firmware6.65(ABVS.1)—
ZyxelWAX300H firmware6.60(ACHF.1)—
ZyxelWBE660S firmware6.65(ACGG.1)—

06 References