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CVE-2001-1387

12
FAUCET Score

CVE-2001-1387 describes a vulnerability in iptables before version 1.2.4 where the iptables-save utility incorrectly records the "--reject-with icmp-host-prohibited" rule as "--reject-with tcp-reset." This discrepancy can lead to the firewall generating unintended responses, potentially resulting in an information leak. With a CVSS score of 2.1 (LOW), this vulnerability has a local attack vector and low attack complexity, primarily impacting confidentiality. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.2.4CPE matchmatch criteria
cpe:2.3:a:netfilter:iptables:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.1LOW

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.40%
Probability of exploitation in next 30 days
EPSS Percentile
32.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0040 is in the 56th percentile among its peer group of 2,096 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.6 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

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.2
View patch

Vendor Advisories (1)

redhatCVE-2001-1387

security flaw

Oct 30, 2001

References

bugzilla.redhat.com / bugzilla/show_bug.cgi
ExploitIssue TrackingThird Party Advisory
rhn.redhat.com / errata/RHSA-2001-144.html
Broken Link