CVE-2019-9682Public exploitNetwork attack vector

Account compromise via replayable legacy login hashes

Published May 13, 2020 · Updated Aug 4, 2024

Replay weakness in Dahua device firmware built before December 2019 allows attackers to compromise devices through intercepted legacy logins. The legacy DVRIP login accepts captured DES/3DES username and password hashes as fresh authentication requests instead of binding them to a unique challenge. The weak login mode must be enabled and its traffic observable; a captured hash grants an authenticated session with the intercepted account's privileges.

CVSS severity8.1
High
EPSS probability0.86%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Replay weakness in Dahua device firmware built before December 2019 allows attackers to compromise devices through intercepted legacy logins. The legacy DVRIP login accepts captured DES/3DES username and password hashes as fresh authentication requests instead of binding them to a unique challenge. The weak login mode must be enabled and its traffic observable; a captured hash grants an authenticated session with the intercepted account's privileges.

The record

CVE
CVE-2019-9682
Published
May 13, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-276, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 13, 2020CVE 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

8.1Dahua PSIRTCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.3Dahua PSIRTCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

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.

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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-276Incorrect Default Permissions
T1557Adversary-in-the-Middle

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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