How severe is CVE-2009-4655?

CVE-2009-4655 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2009-4655 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 50% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-4655?

CVE-2009-4655 affects Novell Edirectory. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-4655?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2009-4655 published?

CVE-2009-4655 was published on 2010-02-26 and last updated on 2026-06-16.

CVE-2009-4655

CVE-2009-4655 is a high-severity vulnerability in Novell Edirectory with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 50% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-310.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 50% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-310
Affected product: Novell Edirectory
Published: 2010-02-26
Last modified: 2026-06-16

Description

The dhost web service in Novell eDirectory 8.8.5 uses a predictable session cookie, which makes it easier for remote attackers to hijack sessions via a modified cookie.

Frequently asked questions

What is CVE-2009-4655?: The dhost web service in Novell eDirectory 8.8.5 uses a predictable session cookie, which makes it easier for remote attackers to hijack sessions via a modified cookie.
How severe is CVE-2009-4655?: CVE-2009-4655 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2009-4655 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 50% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-4655?: CVE-2009-4655 affects Novell Edirectory. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-4655?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2009-4655 published?: CVE-2009-4655 was published on 2010-02-26 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:novell:edirectory:8.8.5:*:*:*:*:*:*:*

More vulnerabilities in Novell Edirectory

CVE-2009-0895 — Critical (CVSS 10.0): Integer overflow in Novell eDirectory 8.7.3.x before 8.7.3.10 ftf2 and 8.8.x before 8.8.5.2 allows remote attackers to…
CVE-2008-5094 — Critical (CVSS 10.0): Heap-based buffer overflow in the NDS Service in Novell eDirectory before 8.8 SP3 has unknown impact and attack vectors.
CVE-2008-5092 — Critical (CVSS 10.0): Heap-based buffer overflows in Novell eDirectory HTTP protocol stack (HTTPSTK) before 8.8 SP3 have unknown impact and…
CVE-2008-5091 — Critical (CVSS 10.0): Buffer overflow in the LDAP Service in Novell eDirectory 8.7.3 before SP10a and 8.8 before SP3 allows attackers to…
CVE-2008-4480 — Critical (CVSS 10.0): Heap-based buffer overflow in dhost.exe in Novell eDirectory 8.x before 8.8.3, and 8.7.3 before 8.7.3.10 ftf1, allows…
CVE-2008-4479 — Critical (CVSS 10.0): Heap-based buffer overflow in dhost.exe in Novell eDirectory 8.8 before 8.8.3, and 8.7.3 before 8.7.3.10 ftf1, allows…

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