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CVE-1999-1339

15
FAUCET Score

CVE-1999-1339 describes a denial-of-service vulnerability affecting Linux kernels 2.2.10 and earlier with ipchains, and FreeBSD 3.2 with ipfw, when Network Address Translation (NAT) is enabled. Remote attackers can trigger a kernel panic by sending a specially crafted ping -R (record route) command. This medium-severity vulnerability has a CVSS score of 5.0, indicating it can be exploited remotely with low attack complexity, resulting in a complete loss of availability. There is no known active exploitation, public exploit code, or significant community discussion surrounding this older CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.2CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:3.2:*:*:*:*:*:*:*
<= 2.2.10CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

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

Exploit Intelligence

EPSS Score
2.61%
Probability of exploitation in next 30 days
EPSS Percentile
83.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0261 is in the 76th percentile among its peer group of 23,725 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, 0.0 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

marc.info
marc.info
iss.net / security_center/static/7257.php
kernel.org / pub/linux/kernel/v2.2/patch-2.2.11.gz
osvdb.org / 6105