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CVE-2005-2019

20
FAUCET Score

CVE-2005-2019 describes a vulnerability in ipfw within FreeBSD 5.4, affecting both SMP and UP systems with the PREEMPTION kernel option enabled. Insufficient locking during concurrent table lookups can corrupt cache results, allowing remote attackers to bypass access restrictions. With a CVSS score of 5.0 (AV:N/AC:L/Au:N/C:N/I:P/A:N), this vulnerability is remotely exploitable with low complexity, potentially leading to unauthorized information disclosure. There is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant media coverage, though it has received minimal community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
5.4CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:5.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.23%
Probability of exploitation in next 30 days
EPSS Percentile
65.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0123 is in the 45th percentile among its peer group of 23,705 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

ftp.freebsd.org / pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:13.ipfw.asc
Vendor Advisory