MEDIUM
The Intrusion Prevention System (IPS) feature for Cisco IOS 12.4XE to 12.3T allows remote attackers to bypass IPS signatures that use regular expressions via fragmented packets
Published Feb 14, 2007
6.4
MEDIUMCVSS 2.0
EPSS 1.94%
Description
The Intrusion Prevention System (IPS) feature for Cisco IOS 12.4XE to 12.3T allows remote attackers to bypass IPS signatures that use regular expressions via fragmented packets.
Affected products
No data.
OR
- 12.3t
- 12.3xq
- 12.3xr
- 12.3xs
- 12.3xw
- 12.3xx
- 12.3xy
- 12.3ya
- 12.3yd
- 12.3yg
- 12.3yh
- 12.3yi
- 12.3yj
- 12.3yk
- 12.3ym
- 12.3yq
- 12.3ys
- 12.3yt
- 12.3yx
- 12.3yz
- 12.4
- 12.4mr
- 12.4t
- 12.4xa
- 12.4xb
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.
6.4 MEDIUM NVD
AV:N/AC:L/Au:N/C:P/I:P/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.94% 0.01942
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.01942
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 (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.94% (0.01942) | 79.44th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.88% (0.01882) | 76.69th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.59% (0.00592) | 67.36th | v4 (v2025.03.14) |
| Jan 4, 2025 | 3.55% (0.03547) | 91.47th | v3 (v2023.03.01) |
| Apr 11, 2024 | 6.83% (0.06829) | 93.79th | v3 (v2023.03.01) |
| Jan 25, 2024 | 8.26% (0.08264) | 93.77th | v3 (v2023.03.01) |
| Dec 18, 2023 | 3.40% (0.03401) | 90.46th | v3 (v2023.03.01) |
| Nov 10, 2023 | 1.46% (0.01457) | 85.21th | v3 (v2023.03.01) |
| Oct 3, 2023 | 1.51% (0.01514) | 85.45th | v3 (v2023.03.01) |
| Jul 18, 2023 | 0.79% (0.00793) | 79.31th | v3 (v2023.03.01) |
| Jun 10, 2023 | 0.56% (0.00556) | 74.41th | v3 (v2023.03.01) |
| May 5, 2023 | 0.60% (0.00604) | 75.41th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.59% (0.00593) | 75.00th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.97% (0.01974) | 78.97th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.97% (0.01974) | 77.12th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.97% (0.01974) | 56.20th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (9)
- http://osvdb.org/33052 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/24142 third-party-advisoryx_refsource_SECUNIA
- http://www.cisco.com/en/US/products/products_security_advisory09186a00807e0a5b.shtml vendor-advisoryx_refsource_CISCO
- http://www.cisco.com/en/US/products/products_security_response09186a00807e0a5e.html x_refsource_MISC
- http://www.securityfocus.com/bid/22549 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1017631 vdb-entryx_refsource_SECTRACK
- http://www.vupen.com/english/advisories/2007/0597 vdb-entryx_refsource_VUPEN
- https://exchange.xforce.ibmcloud.com/vulnerabilities/32473 vdb-entryx_refsource_XF
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5858 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://osvdb.org/33052 | vdb-entryx_refsource_OSVDB | |
| http://secunia.com/advisories/24142 | third-party-advisoryx_refsource_SECUNIA | |
| http://www.cisco.com/en/US/products/products_security_advisory09186a00807e0a5b.shtml | vendor-advisoryx_refsource_CISCO | |
| http://www.cisco.com/en/US/products/products_security_response09186a00807e0a5e.html | x_refsource_MISC | |
| http://www.securityfocus.com/bid/22549 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id?1017631 | vdb-entryx_refsource_SECTRACK | |
| http://www.vupen.com/english/advisories/2007/0597 | vdb-entryx_refsource_VUPEN | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/32473 | vdb-entryx_refsource_XF | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5858 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Feb 14, 2007
Updated Aug 7, 2024
Reserved Feb 13, 2007
Link CVE-2007-0917
CISA Vulnrichment
Updated n/a