How severe is CVE-2008-4515?

CVE-2008-4515 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2008-4515 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-4515?

CVE-2008-4515 affects Blue Coat Systems K9 Web Protection. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2008-4515?

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-2008-4515 published?

CVE-2008-4515 was published on 2008-10-09 and last updated on 2026-06-16.

CVE-2008-4515

CVE-2008-4515 is a high-severity vulnerability in Blue Coat Systems K9 Web Protection with a CVSS 2.0 base score of 7.5. 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-287.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Blue Coat Systems K9 Web Protection
Published: 2008-10-09
Last modified: 2026-06-16

Description

Blue Coat K9 Web Protection 4.0.230 Beta relies on client-side JavaScript as a protection mechanism, which allows remote attackers to bypass authentication and access the (1) summary, (2) detail, (3) overrides, and (4) pwemail pages by disabling JavaScript.

Frequently asked questions

What is CVE-2008-4515?: Blue Coat K9 Web Protection 4.0.230 Beta relies on client-side JavaScript as a protection mechanism, which allows remote attackers to bypass authentication and access the (1) summary, (2) detail, (3) overrides, and (4) pwemail pages by disabling JavaScript.
How severe is CVE-2008-4515?: CVE-2008-4515 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2008-4515 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-4515?: CVE-2008-4515 affects Blue Coat Systems K9 Web Protection. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2008-4515?: 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-2008-4515 published?: CVE-2008-4515 was published on 2008-10-09 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:blue_coat_systems:k9_web_protection:4.0.230:beta:*:*:*:*:*:*

More vulnerabilities in Blue Coat Systems K9 Web Protection

CVE-2007-2952 — Critical (CVSS 9.3): Multiple stack-based buffer overflows in the filter service (aka k9filter.exe) in Blue Coat K9 Web Protection 3.2.44…

All CVEs affecting Blue Coat Systems K9 Web Protection →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →