Linksys WRT54G Wireless-G Broadband Router allows remote attackers to bypass access restrictions and conduct unauthorized operations via a UPnP request with a modified InternalClient parameter, which is not validated, as demonstrated by using AddPortMapping to forward arbitrary traffic
Published May 24, 2006
7.5
HIGHCVSS 2.0
EPSS 1.70%
Description
Linksys WRT54G Wireless-G Broadband Router allows remote attackers to bypass access restrictions and conduct unauthorized operations via a UPnP request with a modified InternalClient parameter, which is not validated, as demonstrated by using AddPortMapping to forward arbitrary traffic.
Affected products
No data.
- 1.42.3
- 2.00.8
- 2.02.7
- 2.04.4
- 2.04.4_non_default
- 3.01.3
- 3.03.6
- 4.00.7
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.70% (0.01704) | 76.46th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.67% (0.01673) | 73.72th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.53% (0.00531) | 65.29th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.98% (0.00977) | 84.08th | v3 (v2023.03.01) |
| Sep 12, 2024 | 0.98% (0.00977) | 83.76th | v3 (v2023.03.01) |
| Apr 13, 2024 | 10.02% (0.10020) | 94.79th | v3 (v2023.03.01) |
| Feb 15, 2024 | 17.95% (0.17950) | 95.99th | v3 (v2023.03.01) |
| May 4, 2023 | 5.31% (0.05314) | 91.86th | v3 (v2023.03.01) |
| Mar 27, 2023 | 3.32% (0.03322) | 89.81th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.43% (0.02429) | 88.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
No CWE recorded.
References (6)
- http://secunia.com/advisories/20161 third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
- http://securitytracker.com/id?1016134 vdb-entryx_refsource_SECTRACK
- http://www.securityview.org/dutch-student-finds-a-bug-in-upnp.html x_refsource_MISCURL Repurposed
- http://www.securityview.org/how-does-the-upnp-flaw-works.html x_refsource_MISCURL Repurposed
- http://www.vupen.com/english/advisories/2006/1909 vdb-entryx_refsource_VUPEN
- https://exchange.xforce.ibmcloud.com/vulnerabilities/26707 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/20161 | third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory | |
| http://securitytracker.com/id?1016134 | vdb-entryx_refsource_SECTRACK | |
| http://www.securityview.org/dutch-student-finds-a-bug-in-upnp.html | x_refsource_MISCURL Repurposed | |
| http://www.securityview.org/how-does-the-upnp-flaw-works.html | x_refsource_MISCURL Repurposed | |
| http://www.vupen.com/english/advisories/2006/1909 | vdb-entryx_refsource_VUPEN | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/26707 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.