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CVE-2002-1463

31
FAUCET Score

CVE-2002-1463 describes a vulnerability in Symantec Raptor Firewall, Enterprise Firewall, VelociRaptor, and Gateway Security products where easily predictable initial sequence numbers (ISN) are generated. This flaw allows remote attackers to spoof connections, posing a significant risk to network integrity. With a CVSS score of 7.5, it is considered highly severe due to its network attack vector, low attack complexity, and potential for partial confidentiality, integrity, and availability impacts. While there is no evidence of active exploitation or readily available exploit modules like Metasploit or Nuclei, a related exploit for Linux Kernel 2.2 ISN prediction exists on ExploitDB, and the vulnerability has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
6.5.2CPE matchmatch criteria
cpe:2.3:a:symantec:enterprise_firewall:6.5.2:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:a:symantec:enterprise_firewall:7.0:*:*:*:*:*:*:*
6.5CPE matchmatch criteria
cpe:2.3:a:symantec:raptor_firewall:6.5:*:*:*:*:*:*:*
6.5.3CPE matchmatch criteria
cpe:2.3:a:symantec:raptor_firewall:6.5.3:*:*:*:*:*:*:*
model_500CPE matchmatch criteria
cpe:2.3:a:symantec:velociraptor:model_500:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.91%
Probability of exploitation in next 30 days
EPSS Percentile
93.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-19522 · Sep 27, 1999
This CVE's current EPSS score of 0.0691 is in the 89th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

archives.neohapsis.com / archives/bugtraq/2002-07/0492.html
PatchVendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/12836
osvdb.org / 855
securityfocus.com / bid/5387
symantec.com / techsupp/bulletin/archive/firewall/082002firewall.html
PatchVendor Advisory