CVE-2009-3826

Name: CVE-2009-3826
Creator: NVD / NIST
Published: 2009-10-28T14:30:00.297+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.83%

Last modified Jun 16, 2026

CVE-2009-3826 is a vulnerability of currently unknown severity. Multiple buffer overflows in squidGuard 1.4 allow remote attackers to bypass intended URL blocking via a long URL, related to (1) the relationship between a certain buffer size in squidGuard and a certain buffer size in Squid and (2) a redirect URL that contains information about the originally requested URL.. EPSS estimates a 3.83% chance of exploitation in the next 30 days.

Description

Multiple buffer overflows in squidGuard 1.4 allow remote attackers to bypass intended URL blocking via a long URL, related to (1) the relationship between a certain buffer size in squidGuard and a certain buffer size in Squid and (2) a redirect URL that contains information about the originally requested URL.

Metrics

EPSS Probability

3.83%

88.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Squidguard	Squidguard	1.4

References

Timeline

Published: Oct 28, 2009
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-3826?

How severe is CVE-2009-3826?

Severity scoring for CVE-2009-3826 is pending analysis. The EPSS model estimates a 3.83% probability of exploitation in the next 30 days.

How do I fix CVE-2009-3826?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-3826?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST