MEDIUM
The SSL-VPN feature in Fortinet FortiOS before 4.3.13 only checks the first byte of the TLS MAC in finished messages, which makes it easier for remote attackers to spoof encrypted content via a crafted MAC field
Published Aug 11, 2015
5.0
MEDIUMCVSS 2.0
EPSS 2.09%
Description
The SSL-VPN feature in Fortinet FortiOS before 4.3.13 only checks the first byte of the TLS MAC in finished messages, which makes it easier for remote attackers to spoof encrypted content via a crafted MAC field.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.09% 0.02089
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02089
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.09% (0.02089) | 80.91th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.07% (0.02071) | 78.90th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.35% (0.00352) | 55.47th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.55% (0.00551) | 78.27th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.55% (0.00551) | 76.83th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.55% (0.00551) | 74.01th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
Weaknesses (1)
References (5)
- http://www.fortiguard.com/advisory/FG-IR-15-016/ x_refsource_CONFIRMVendor Advisory
- http://www.securityfocus.com/bid/76065 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1033256 vdb-entryx_refsource_SECTRACK
- https://security.gentoo.org/glsa/201508-01 vendor-advisoryx_refsource_GENTOO
- https://vivaldi.net/en-US/blogs/entry/the-poodle-has-friends x_refsource_MISC
| Link | Providers | Tags |
|---|---|---|
| http://www.fortiguard.com/advisory/FG-IR-15-016/ | x_refsource_CONFIRMVendor Advisory | |
| http://www.securityfocus.com/bid/76065 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id/1033256 | vdb-entryx_refsource_SECTRACK | |
| https://security.gentoo.org/glsa/201508-01 | vendor-advisoryx_refsource_GENTOO | |
| https://vivaldi.net/en-US/blogs/entry/the-poodle-has-friends | x_refsource_MISC |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Aug 11, 2015
Updated Aug 6, 2024
Reserved Aug 11, 2015
Link CVE-2015-5965
CISA Vulnrichment
Updated n/a