CVE-2022-34993Public exploitNetwork attack vector

Root password disclosure via hard-coded shadow entry

Published Aug 4, 2022 · Updated Aug 3, 2024

Use of hard-coded credentials in TOTOLINK A3600R firmware 4.1.2cu.5182_B20201102 allows attackers to recover the root password. The /etc/shadow.sample file embeds the root password hash, which the published analysis resolves to a plaintext credential. The evidence demonstrates offline recovery from the firmware image but does not document a successful device login or the network service accepting that credential.

CVSS severity9.8
Critical
EPSS probability1.02%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use of hard-coded credentials in TOTOLINK A3600R firmware 4.1.2cu.5182_B20201102 allows attackers to recover the root password. The /etc/shadow.sample file embeds the root password hash, which the published analysis resolves to a plaintext credential. The evidence demonstrates offline recovery from the firmware image but does not document a successful device login or the network service accepting that credential.

The record

CVE
CVE-2022-34993
Published
Aug 4, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-798, T1552.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 4, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
T1552.001Unsecured Credentials: Credentials In Files

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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