Which products and versions are affected by CVE-2011-5010?

Affected: Skyrouter (Ctekproducts) versions 4200, 4300. The full list is in the CVE brief.

Is CVE-2011-5010 being exploited in the wild?

It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Dec 1, 2020.

Is CVE-2011-5010 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2011-5010?

Public exploit code is available.

Is there a fix for CVE-2011-5010?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2011-5010 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2011-5010

CriticalExploitedPublic exploit

apps/a3/cfg_ethping.cgi in the Ctek SkyRouter 4200 and 4300 allows remote attackers to execute arbitrary commands via shell metacharacters in the PINGADDRESS parameter for a "u" action.

Published Dec 24, 2011 · Updated Apr 28, 2026

Key Facts

Patch immediately

CVE-2011-5010 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Skyrouter (Ctekproducts).
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Dec 1, 2020. Public exploit code is available.
EPSS estimates a 66% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v2

10.0

AV:N/AC:L/Au:N/C:C/I:C/A:C

EPSS (30-day exploit likelihood)

66%

Higher than 99.2% of all scored CVEs

Exploited in the wild

Yes

2 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2011-5010 brief as a PDF

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Description

apps/a3/cfg_ethping.cgi in the Ctek SkyRouter 4200 and 4300 allows remote attackers to execute arbitrary commands via shell metacharacters in the PINGADDRESS parameter for a "u" action.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
Industry KEV feed	Dec 1, 2020	n/a	Not reported
CIRCL KEV	Jan 13, 2024	n/a	Not reported

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

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
SkyrouterCtekproducts	4200, 4300	n/a

Timeline

Publicly disclosed
Dec 24, 2011
Added to Industry KEV feed
Dec 1, 2020
Added to CIRCL KEV
Jan 13, 2024
Last updated
Apr 28, 2026

Weakness Type

CWE-264

References

6 more references in the full CVE brief

FAQ

Common Questions.

apps/a3/cfg_ethping.cgi in the Ctek SkyRouter 4200 and 4300 allows remote attackers to execute arbitrary commands via shell metacharacters in the PINGADDRESS parameter for a "u" action.
Affected: Skyrouter (Ctekproducts) versions 4200, 4300. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Dec 1, 2020.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2011-5010 Running On Your Attack Surface?

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