synced 12 MIN AGO
01 Record

CVE-2020-14993

A stack-based buffer overflow on DrayTek Vigor2960, Vigor3900, and Vigor300B devices before 1.5.1.1 allows remote attackers to execute arbitrary code via the formuserphonenumber parameter in an

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector

02 Description

A stack-based buffer overflow on DrayTek Vigor2960, Vigor3900, and Vigor300B devices before 1.5.1.1 allows remote attackers to execute arbitrary code via the formuserphonenumber parameter in an

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
5.54% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 92.5% of scored records. A rank, not a probability.
NVD base score
9.8 (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:H/I:H/A:H
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
2020-06-23 11:50Z6 YR AGO
Last updated
2024-08-04 13:00Z2 YR AGO
Reserved
2020-06-23
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
Data version
5.1
Document digest
c4fde50b0c1508c761a98fd11670e1efae86974ae6a449a975d5e40bb5b5a63d

05 Affected products

VendorProductVersionsPlatforms
draytekvigor2960Not specified—
draytekvigor2960_firmwareNot specified—
draytekvigor300bNot specified—
draytekvigor300b_firmwareNot specified—
draytekvigor3900Not specified—
draytekvigor3900_firmwareNot specified—

06 References