CVE-2020-25605Public exploitNetwork attack vector

Call eavesdropping via cleartext session credentials

Published Feb 17, 2021 · Updated Aug 4, 2024

Cleartext transmission in Agora Video SDK before 3.1 allows remote attackers to access ongoing calls by observing network traffic. The SDK's call-setup path sends the App ID, channel name, and token in plaintext, allowing captured credentials to join an active channel. An attacker must observe the call's network traffic; media encryption blocks audio and video access, but exposed setup values still permit joining.

CVSS severity5.9
Medium
EPSS probability6.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext transmission in Agora Video SDK before 3.1 allows remote attackers to access ongoing calls by observing network traffic. The SDK's call-setup path sends the App ID, channel name, and token in plaintext, allowing captured credentials to join an active channel. An attacker must observe the call's network traffic; media encryption blocks audio and video access, but exposed setup values still permit joining.

The record

CVE
CVE-2020-25605
Published
Feb 17, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-319, CAPEC-117, T1040
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 17, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.9NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5McAfee ATRCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
6.7McAfee ATRCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
4.3NIST NVDAV:N/AC:M/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 exploitPublished

Weakness, pattern, technique

CWE-319Cleartext Transmission of Sensitive Information
CAPEC-117Interception
T1040Network Sniffing

Public exploit references

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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