CVE-2017-3870

5.8 mediumEPSS 1.5%

Medium (5.8) in cisco web security appliance. EPSS 1.5% chance of exploitation in the next 30 days.

A vulnerability in the URL filtering feature of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to bypass a configured URL filter rule. Affected Products: This vulnerability affects all releases prior to the first fixed release of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA), both virtual and hardware appliances, that are configured with URL filters for email scanning. More Information: CSCvc69700. Known Affected Releases: 8.5.3-069 9.1.1-074 9.1.2-010.

Severity

CVSS 3.0

5.8 medium

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

EPSS: 1.5% chance of exploitation in the next 30 days; higher than 74% of CVEs (scores of 2026-10-31)
CWE: CWE-119
Published: 2017-03-17
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

cisco:web_security_appliance

References

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