Buffer overflow in ISS BlackICE Defender 2.9 and earlier, BlackICE Agent 3.0 and 3.1, and…
Priority LOW 39Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Buffer overflow in ISS BlackICE Defender 2.9 and earlier, BlackICE Agent 3.0 and 3.1, and RealSecure Server Sensor 6.0.1 and 6.5 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a flood of large ICMP ping packets.
Why it matters now
EPSS 0.03692 89th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:iss:blackice_agent:3.0:*:*:*:*:*:*:* | 3.0 | Vulnerable | ISS |
| cpe:2.3:a:iss:blackice_agent:3.1:*:*:*:*:*:*:* | 3.1 | Vulnerable | ISS |
| cpe:2.3:a:iss:blackice_defender:2.9:*:*:*:*:*:*:* | 2.9 | Vulnerable | ISS |
| cpe:2.3:a:iss:blackice_defender:2.9cap:*:*:*:*:*:*:* | 2.9cap | Vulnerable | ISS |
| cpe:2.3:a:iss:blackice_defender:2.9caq:*:*:*:*:*:*:* | 2.9caq | Vulnerable | ISS |
| cpe:2.3:a:iss:realsecure_server_sensor:6.0.1:*:*:*:*:*:*:* | 6.0.1 | Vulnerable | ISS |
| cpe:2.3:a:iss:realsecure_server_sensor:6.5:*:*:*:*:*:*:* | 6.5 | Vulnerable | ISS |
- cpe:2.3:a:iss:blackice_agent:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·ISS
- cpe:2.3:a:iss:blackice_agent:3.1:*:*:*:*:*:*:* Versions 3.1 Vulnerable ·ISS
- cpe:2.3:a:iss:blackice_defender:2.9:*:*:*:*:*:*:* Versions 2.9 Vulnerable ·ISS
- cpe:2.3:a:iss:blackice_defender:2.9cap:*:*:*:*:*:*:* Versions 2.9cap Vulnerable ·ISS
- cpe:2.3:a:iss:blackice_defender:2.9caq:*:*:*:*:*:*:* Versions 2.9caq Vulnerable ·ISS
- cpe:2.3:a:iss:realsecure_server_sensor:6.0.1:*:*:*:*:*:*:* Versions 6.0.1 Vulnerable ·ISS
- cpe:2.3:a:iss:realsecure_server_sensor:6.5:*:*:*:*:*:*:* Versions 6.5 Vulnerable ·ISS
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2002-0237
- 2026-10-03 Alias added: GHSA-xp42-g4qq-8cg3
References
Patch 2
More ISS Blackice Agent vulnerabilities
- TI-2002-00928 BlackICE Agent 3.1.eal does not always reactivate after a system standby, which could… CVSS 2.0HIGH 7.5
- TI-2000-00560 BlackIce Defender 2.1 and earlier, and BlackIce Pro 2.0.23 and earlier, do not properly… CVSS 2.0HIGH 7.5
- TI-2002-00929 The default configuration of BlackICE Agent 3.1.eal and 3.1.ebh has a high… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2002-0237 · CVE Program
- CVE-2002-0237 · NVD
- FIRST EPSS
- GHSA-xp42-g4qq-8cg3 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences