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Vulnerability Intelligence

CVE-2013-3307

HighExploitedPublic exploit

Linksys E1000 devices through 2.1.02, E1200 devices before 2.0.05, and E3200 devices through 1.0.04 allow OS command injection via shell metacharacters in the apply.cgi ping_ip parameter on TCP port 52000.

Published Jul 11, 2025 · Updated Apr 14, 2026

Key Facts

Patch immediately
  • CVE-2013-3307 is a high-severity vulnerability (CVSS 8.3 v3.1) affecting E1000, E1200, E3200.
  • It is exploited in the wild, listed in Industry KEV feed since Nov 11, 2021. Public exploit code is available.
  • EPSS estimates a 63% probability of exploitation in the next 30 days.
  • Fixed versions are available, including E1200 2.0.05.
  • Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

8.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

EPSS (30-day exploit likelihood)

63%

Higher than 99.1% of all scored CVEs

Exploited in the wild

Yes

1 catalog listing

Public exploit code

Available

Proof-of-concept or weaponized module

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Description

Linksys E1000 devices through 2.1.02, E1200 devices before 2.0.05, and E3200 devices through 1.0.04 allow OS command injection via shell metacharacters in the apply.cgi ping_ip parameter on TCP port 52000.

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
Industry KEV feedNov 11, 2021n/aNot reported

Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Affected Products

3 affected entries in total
ProductAffected versionsFixed in
E1000See advisoryn/a
E1200See advisory2.0.05
E3200See advisoryn/a

Patched Releases

E1200

2.0.05

Timeline

  1. Added to Industry KEV feed

    Nov 11, 2021

  2. Publicly disclosed

    Jul 11, 2025

  3. Last updated

    Apr 14, 2026

Weakness Type

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

References

7 more references in the full CVE brief

FAQ

Common Questions.

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