CVE-2020-3932Network attack vector

Unauthenticated information disclosure via persistent legacy SNMP

Published Apr 15, 2020 · Updated Sep 16, 2024

Information disclosure in SNMP on DrayTek VigorAP 910C 1.3.1 allows remote attackers to read device data over the network. The management configuration cannot disable the vulnerable legacy SNMP protocol independently, leaving it reachable for requests. No authentication or user interaction is required; published sources do not identify the specific data objects exposed.

CVSS severity7.5
High
EPSS probability1.08%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in SNMP on DrayTek VigorAP 910C 1.3.1 allows remote attackers to read device data over the network. The management configuration cannot disable the vulnerable legacy SNMP protocol independently, leaving it reachable for requests. No authentication or user interaction is required; published sources do not identify the specific data objects exposed.

The record

CVE
CVE-2020-3932
Published
Apr 15, 2020
Updated
Sep 16, 2024
Vendor
DrayTek
Product
VigorAP 910C
Classifications
Unavailable
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <1.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

DrayTek · VigorAP 910Cversion=unspecified <1.3.1

Published CVSS scores

7.5TWCERT/CCCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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