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CVE-2011-4499

N/A

Published: November 22, 2011 at 11:00 AM UTC

Updated: June 16, 2026 at 11:34 PM UTC

4 products affected across 2 vendorsWRT54GWRT54GSLinksys WRT54G Router Firmware

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Severity

N/A

Exploit prediction

EPSS 1%

Description

The UPnP IGD implementation in the Broadcom UPnP stack on the Cisco Linksys WRT54G with firmware before 4.30.5, WRT54GS v1 through v3 with firmware before 4.71.1, and WRT54GS v4 with firmware before 1.06.1 allows remote attackers to establish arbitrary port mappings by sending a UPnP AddPortMapping action in a SOAP request to the WAN interface, related to an "external forwarding" vulnerability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linksys WRT54G Router Firmware · Cisco

95%

v ≤ 4.20.83.03.9 4.20.7

Linksys WRT54GS Router Firmware · Cisco

95%

v ≤ 1.06v ≤ 4.70.62.09.1

WRT54G · Linksys

95%

WRT54GS · Linksys

95%

1.0 2.0 3.0 4.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Third Party Advisoryx_refsource_CERT-VNUS Government Resource

Source: [email protected]

http://www.kb.cert.org/vuls/id/357851

x_refsource_MISC

Source: [email protected]

http://www.upnp-hacks.org/devices.html

CVSS

7.5HIGH[email protected]

Confidentiality: PARTIAL
Integrity: PARTIAL
Availability: PARTIAL

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-16

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