7.5

CVE-2006-1651: microsoft isa_server

CVSS: 7.5v2.0HighModified
Published 06-04-2006Last modified 07-08-2024
Open JSON

Vulnerability summary

CVE-2006-1651 is a high (CVSS 7.5) vulnerability in microsoft isa_server. EPSS estimates a 14.95% chance of exploitation in the next 30 days, higher than 96.6% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v2.0 (NVD)
EPSS score
14.95%
0%100%
Medium · -0.23 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 06-04-2006
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

Description

Microsoft ISA Server 2004 allows remote attackers to bypass certain filtering rules, including ones for (1) ICMP and (2) TCP, via IPv6 packets. NOTE: An established researcher has disputed this issue, saying that "Neither ISA Server 2004 nor Windows 2003 Basic Firewall support IPv6 filtering ... This is different network protocol.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

14.95%

Chance of exploitation in the next 30 days

Percentile

97%

Versus all other CVEs

30-day change

-0.23 pp

From 15.19% on 19-09-2026

19-09-202619-10-2026
EPSS score
14.95%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Microsoft1 product

1 vendor · 1 product

References

4 links