ISS RealSecure Network Sensor 5.x through 6.5 allows remote attackers to cause a denial of service (crash) via malformed DHCP packets that cause RealSecure to dereference a null pointer
Published Apr 2, 2003
5.0
MEDIUMCVSS 2.0
EPSS 2.47%
Description
ISS RealSecure Network Sensor 5.x through 6.5 allows remote attackers to cause a denial of service (crash) via malformed DHCP packets that cause RealSecure to dereference a null pointer.
Affected products
No data.
- 5.0_xpu_3.4
- 5.5.1_xpu_3.4
- 5.5.2_xpu_3.4
- 5.5_xpu_3.4
- 6.0_xpu_3.4
- 6.5
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 | 2.47% (0.02468) | 83.92th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.47% (0.02468) | 82.35th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.31% (0.01306) | 78.40th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.30% (0.01301) | 86.45th | v3 (v2023.03.01) |
| Jan 29, 2024 | 1.30% (0.01301) | 84.45th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.44% (0.01444) | 84.55th | 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 (5)
- http://archives.neohapsis.com/archives/bugtraq/2002-04/0420.html mailing-listx_refsource_BUGTRAQVendor Advisory
- http://www.iss.net/security_center/alerts/advise116.php third-party-advisoryx_refsource_ISSVendor Advisory
- http://www.iss.net/security_center/static/8961.php vdb-entryx_refsource_XF
- http://www.osvdb.org/5165 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/bid/4649 vdb-entryx_refsource_BIDPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://archives.neohapsis.com/archives/bugtraq/2002-04/0420.html | mailing-listx_refsource_BUGTRAQVendor Advisory | |
| http://www.iss.net/security_center/alerts/advise116.php | third-party-advisoryx_refsource_ISSVendor Advisory | |
| http://www.iss.net/security_center/static/8961.php | vdb-entryx_refsource_XF | |
| http://www.osvdb.org/5165 | vdb-entryx_refsource_OSVDB | |
| http://www.securityfocus.com/bid/4649 | vdb-entryx_refsource_BIDPatchVendor Advisory |
Change history (0)
No recorded changes yet.