Cisco Gigabit Switch Routers (GSR) with Fast Ethernet / Gigabit Ethernet cards, from IOS versions 11.2(15)GS1A up to 11.2(19)GS0.2 and some versions of 12.0, do not properly handle line card failures, which allows remote attackers to bypass ACLs or force the interface to stop forwarding packets
Published Oct 13, 2000
5.0
MEDIUMCVSS 2.0
EPSS 1.67%
Description
Cisco Gigabit Switch Routers (GSR) with Fast Ethernet / Gigabit Ethernet cards, from IOS versions 11.2(15)GS1A up to 11.2(19)GS0.2 and some versions of 12.0, do not properly handle line card failures, which allows remote attackers to bypass ACLs or force the interface to stop forwarding packets.
Affected products
No data.
Configuration 1
- 11.2
- 11.2\(8\)
- 11.2\(10\)
- 11.2p
- 11.3
- 11.3\(1\)
- 12.0
- 12.0\(1\)
- 12.0\(2\)
- 12.0\(3\)
- 12.0\(4\)
- 12.0\(5\)
- 12.0\(6\)
- 12.0\(7\)t
- 12.1
Configuration 2
- n/a
- n/a
- 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:N/I:N/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 1, 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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.67% (0.01670) | 75.94th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.67% (0.01670) | 73.69th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.43% (0.00434) | 60.73th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.73% (0.00726) | 81.32th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.73% (0.00726) | 80.06th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.73% (0.00726) | 77.67th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
No CWE recorded.
References (4)
- http://www.cisco.com/warp/public/707/gsraclbypassdos-pub.shtml vendor-advisoryx_refsource_CISCOPatchVendor Advisory
- http://www.osvdb.org/793 vdb-entryx_refsource_OSVDB
- http://www.osvdb.org/798 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/bid/1541 vdb-entryx_refsource_BIDPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.cisco.com/warp/public/707/gsraclbypassdos-pub.shtml | vendor-advisoryx_refsource_CISCOPatchVendor Advisory | |
| http://www.osvdb.org/793 | vdb-entryx_refsource_OSVDB | |
| http://www.osvdb.org/798 | vdb-entryx_refsource_OSVDB | |
| http://www.securityfocus.com/bid/1541 | vdb-entryx_refsource_BIDPatchVendor Advisory |
Change history (0)
No recorded changes yet.