CVE-2013-5122Public exploitNetwork attack vector

Administrative control via exposed unauthenticated console

Published Jan 7, 2020 · Updated Aug 6, 2024

Authentication bypass in Cisco Linksys EA2700 1.0.14, EA3500 1.0.30, E4200 and EA4500 2.0.36 allows remote attackers to gain administrative access. An installation or upgrade bug can leave the classic administrative console listening on TCP port 8083 without requiring authentication. Network access to that port grants control of router administrative features even when the interface reports remote access as disabled.

CVSS severity9.8
Critical
EPSS probability3.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Cisco Linksys EA2700 1.0.14, EA3500 1.0.30, E4200 and EA4500 2.0.36 allows remote attackers to gain administrative access. An installation or upgrade bug can leave the classic administrative console listening on TCP port 8083 without requiring authentication. Network access to that port grants control of router administrative features even when the interface reports remote access as disabled.

The record

CVE
CVE-2013-5122
Published
Jan 7, 2020
Updated
Aug 6, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 7, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 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

10.0NIST NVDAV:N/AC:L/Au:N/C:C/I:C/A:C
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.

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-287Improper Authentication
T1190Exploit Public-Facing Application

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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