synced 13 MIN AGO
01 Record

CVE-2024-42058

A null pointer dereference vulnerability in Zyxel ATP series firmware versions from V4.32 through V5.38, USG FLEX series firmware versions from V4.50 through V5.38, USG FLEX 50(W) series firmware

HighPUBLISHEDCNA: Zyxel
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

02 Description

A null pointer dereference vulnerability in Zyxel ATP series firmware versions from V4.32 through V5.38, USG FLEX series firmware versions from V4.50 through V5.38, USG FLEX 50(W) series firmware

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.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • 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
0.62% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 49.6% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Analyzed. 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
2024-09-03 01:47Z2 YR AGO
Last updated
2024-09-03 13:54Z2 YR AGO
Reserved
2024-07-29
Assigning CNA
Zyxel
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
  • CWE-476NULL Pointer DereferenceBase
Data version
5.1
Document digest
ac2e31ec7b5ed3d895f06534b450062f3804c685280fb6a5099636f41c5e1ba1

05 Affected products

VendorProductVersionsPlatforms
ZyxelATP series firmwareversions V4.32 through V5.38—
ZyxelUSG FLEX series firmwareversions V4.50 through V5.38—
ZyxelUSG FLEX 50(W) series firmwareversions V5.20 through V5.38—
ZyxelUSG20(W)-VPN series firmwareversions V5.20 through V5.38—
zyxelatp800_firmware4.32 to 5.38—
zyxelusg_flex_700h_firmware4.5 to 5.38—
zyxelusg_flex_50w_firmware5.20 to 5.38—

06 References