Home/CVE/The random-number generator on Cisco Small Business RV routers 4.x and SA500 security appliances 2.2.07 does not have su
CVE

CVE-2015-6418

The random-number generator on Cisco Small Business RV routers 4.x and SA500 security appliances 2.2.07 does not have su

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.

MEDIUM · CVSS 4.3 EPSS 0.00388
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
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Affected Products & Versions

7
cisco sa520all versions
cisco sa520wall versions
cisco sa540all versions
cisco rv016 multi-wan vpn firmwareall versions
cisco rv042 dual wan vpn router firmwareall versions
cisco rv042g dual gigabit wan vpn firmwareall versions
cisco rv082 dual wan vpn router firmwareall versions
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Scoring & Timeline

4.3
MEDIUM · CVSS v2 (legacy) · psirt@cisco.com
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This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:M/Au:N/C:P/I:N/A:N
Published to NVD13 Dec 2015 · 03:59 AM
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References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151210-dwvrVendor Advisory
http://www.securityfocus.com/bid/78876
http://www.securitytracker.com/id/1034408
http://www.securitytracker.com/id/1034409
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