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CVE-2002-1778

24
FAUCET Score

CVE-2002-1778 describes a vulnerability in Symantec Norton Personal Firewall 2002 that allows remote attackers to bypass its port scan protection. This bypass is achieved by employing specific malformed TCP scans, including SYN/FIN, SYN/FIN/URG, SYN/FIN/PUSH, or SYN/FIN/URG/PUSH. With a CVSS score of 7.5, this vulnerability is considered highly severe, indicating easy exploitation over the network with potential for partial confidentiality, integrity, and availability impacts. Despite its age and high community discussion (10 mentions), there is no evidence of active exploitation, nor are there known public exploit codes in Metasploit, Nuclei, or ExploitDB.

Impacted Technologies

VendorProductVersion(s)CPE
2002CPE matchmatch criteria
cpe:2.3:a:symantec:norton_personal_firewall:2002:*:*:*:*:*:*:*

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
1.54%
Probability of exploitation in next 30 days
EPSS Percentile
72.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0154 is in the 54th percentile among its peer group of 51,485 CVEs.

Social Chatter

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

online.securityfocus.com / archive/1/267850
securityresponse.symantec.com / avcenter/security/Content/2002.05.16.html
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/8859
securityfocus.com / bid/4521