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CVE-2015-1571

** DISPUTED ** The CAPWAP DTLS protocol implementation in Fortinet FortiOS 5.0 Patch 7 build 4457...

4.3 MediumDisputed

The CAPWAP DTLS protocol implementation in Fortinet FortiOS 5.0 Patch 7 build 4457 uses the same certificate and private key across different customers' installations, which makes it easier for man-in-the-middle attackers to spoof SSL servers by leveraging the Fortinet_Factory certificate and private key. NOTE: FG-IR-15-002 says "The Fortinet_Factory certificate is unique to each device ... An attacker cannot therefore stage a MitM attack.

Exploit likelihood

0.86%Down 0.1 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 4.3

The CAPWAP DTLS protocol implementation in Fortinet FortiOS 5.0 Patch 7 build 4457 uses the same certificate and private key across different customers' installations, which makes it easier for man-in-the-middle attackers to spoof SSL servers by leveraging the Fortinet_Factory certificate and private key. NOTE: FG-IR-15-002 says "The Fortinet_Factory certificate is unique to each device ... An attacker cannot therefore stage a MitM attack.

Record
CVE-2015-1571
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness
CWE-310
Updated
2026-11-02
CVE List No score

The CAPWAP DTLS protocol implementation in Fortinet FortiOS 5.0 Patch 7 build 4457 uses the same certificate and private key across different customers' installations, which makes it easier for man-in-the-middle attackers to spoof SSL servers by leveraging the Fortinet_Factory certificate and private key. NOTE: FG-IR-15-002 says "The Fortinet_Factory certificate is unique to each device ... An attacker cannot therefore stage a MitM attack.

Record
CVE-2015-1571
Updated
2026-11-02
EUVDEUVD-2015-1703 No score

The CAPWAP DTLS protocol implementation in Fortinet FortiOS 5.0 Patch 7 build 4457 uses the same certificate and private key across different customers' installations, which makes it easier for man-in-the-middle attackers to spoof SSL servers by leveraging the Fortinet_Factory certificate and private key. NOTE: FG-IR-15-002 says "The Fortinet_Factory certificate is unique to each device ... An attacker cannot therefore stage a MitM attack.

Record
EUVD-2015-1703
Updated
2026-11-03
GitHub AdvisoriesGHSA-j86q-w3f9-5q6c No score

** DISPUTED ** The CAPWAP DTLS protocol implementation in Fortinet FortiOS 5.0 Patch 7 build 4457...

** DISPUTED ** The CAPWAP DTLS protocol implementation in Fortinet FortiOS 5.0 Patch 7 build 4457 uses the same certificate and private key across different customers' installations, which makes it easier for man-in-the-middle attackers to spoof SSL servers by leveraging the Fortinet_Factory certificate and private key. NOTE: FG-IR-15-002 says "The Fortinet_Factory certificate is unique to each device ... An attacker cannot therefore stage a MitM attack."

Record
GHSA-j86q-w3f9-5q6c
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2015-1571 is a medium vulnerability (CVSS 4.3) in Fortinet Fortios, published February 10, 2015. Its validity is disputed. EPSS puts the chance of exploitation in the next 30 days at 0.86%, the 58th percentile.

References

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