How severe is CVE-2008-1151?

CVE-2008-1151 has a CVSS 2.0 base score of 7.1, rated high severity.

Is CVE-2008-1151 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-1151?

CVE-2008-1151 affects Cisco Ios. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2008-1151?

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-2008-1151 published?

CVE-2008-1151 was published on 2008-03-27 and last updated on 2026-06-16.

CVE-2008-1151

CVE-2008-1151 is a high-severity vulnerability in Cisco Ios with a CVSS 2.0 base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-399.

Key facts

Severity: High (CVSS 2.0 base score 7.1)
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Cisco Ios
Published: 2008-03-27
Last modified: 2026-06-16

Description

Memory leak in the virtual private dial-up network (VPDN) component in Cisco IOS before 12.3 allows remote attackers to cause a denial of service (memory consumption) via a series of PPTP sessions, related to "dead memory" that remains allocated after process termination, aka bug ID CSCsj58566.

Frequently asked questions

What is CVE-2008-1151?: Memory leak in the virtual private dial-up network (VPDN) component in Cisco IOS before 12.3 allows remote attackers to cause a denial of service (memory consumption) via a series of PPTP sessions, related to "dead memory" that remains allocated after process termination, aka bug ID CSCsj58566.
How severe is CVE-2008-1151?: CVE-2008-1151 has a CVSS 2.0 base score of 7.1, rated high severity.
Is CVE-2008-1151 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-1151?: CVE-2008-1151 affects Cisco Ios. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2008-1151?: 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-2008-1151 published?: CVE-2008-1151 was published on 2008-03-27 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*

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