Is CVE-2015-6418 actively exploited?

CVE-2015-6418 has no public evidence of in-the-wild exploitation as of 2025-04-12.

What is the CVSS score for CVE-2015-6418?

CVE-2015-6418 has a CVSS score of 4.3 (UNKNOWN severity). Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N.

How do I patch CVE-2015-6418?

Patch guidance is available from cisco security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2015-6418.

CVE-2015-6418 - remediation guidance & executive summary

Q: Which products are affected by CVE-2015-6418?

12 products: cisco sa520, cisco sa520w, cisco sa540, cisco rv016 multi-wan vpn firmware, cisco rv016 multi-wan vpn firmware, and 7 more.

Description

The random-number generator on Cisco Small Business RV routers 4.x and SA500 security appliances 2.2.07 does not have sufficient entropy, which makes it easier for remote attackers to determine a TLS key pair via unspecified computations upon handshake key-exchange data, aka Bug ID CSCus15224.

CVSS Metrics

Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N
Access Vector: network
Access Cmplx: medium
Auth: none
Confidentiality: partial
Integrity: none
Availability: none
Weaknesses: CWE-200 · Information Disclosure

Metadata

Primary Vendor: CISCO
Published: 12/13/2015
Last Modified: 4/12/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

cisco : sa520cisco : sa520wcisco : sa540cisco : rv016_multi-wan_vpn_firmwarecisco : rv016_multi-wan_vpn_firmwarecisco : rv016_multi-wan_vpn_firmwarecisco : rv042_dual_wan_vpn_router_firmwarecisco : rv042g_dual_gigabit_wan_vpn_firmwarecisco : rv042g_dual_gigabit_wan_vpn_firmwarecisco : rv042g_dual_gigabit_wan_vpn_firmwarecisco : rv082_dual_wan_vpn_router_firmwarecisco : rv082_dual_wan_vpn_router_firmware

Remediation Guidance

Executive Summary

View on NIST NVD