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Vulnerability details: VCID-duh3-c86a-m3hw
Vulnerability ID VCID-duh3-c86a-m3hw
Aliases CVE-2015-2320
Summary The TLS stack in Mono before 3.12.1 allows remote attackers to have unspecified impact via vectors related to client-side SSLv2 fallback.
Status Published
Exploitability 0.5
Weighted Severity 8.8
Risk 4.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-295 Improper Certificate Validation
System Score Found at
epss 0.04829 https://api.first.org/data/v1/epss?cve=CVE-2015-2320
epss 0.04829 https://api.first.org/data/v1/epss?cve=CVE-2015-2320
epss 0.04829 https://api.first.org/data/v1/epss?cve=CVE-2015-2320
epss 0.04829 https://api.first.org/data/v1/epss?cve=CVE-2015-2320
epss 0.04829 https://api.first.org/data/v1/epss?cve=CVE-2015-2320
epss 0.04829 https://api.first.org/data/v1/epss?cve=CVE-2015-2320
epss 0.04829 https://api.first.org/data/v1/epss?cve=CVE-2015-2320
epss 0.04829 https://api.first.org/data/v1/epss?cve=CVE-2015-2320
epss 0.04829 https://api.first.org/data/v1/epss?cve=CVE-2015-2320
epss 0.04829 https://api.first.org/data/v1/epss?cve=CVE-2015-2320
epss 0.04829 https://api.first.org/data/v1/epss?cve=CVE-2015-2320
epss 0.04829 https://api.first.org/data/v1/epss?cve=CVE-2015-2320
epss 0.04829 https://api.first.org/data/v1/epss?cve=CVE-2015-2320
epss 0.04829 https://api.first.org/data/v1/epss?cve=CVE-2015-2320
epss 0.04829 https://api.first.org/data/v1/epss?cve=CVE-2015-2320
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2015-2320
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2015-2320
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2015-2320
https://bugzilla.redhat.com/show_bug.cgi?id=1202869
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2318
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2319
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2320
https://github.com/mono/mono/commit/b371da6b2d68b4cdd0f21d6342af6c42794f998b
https://www.debian.org/security/2015/dsa-3202
http://www.mono-project.com/news/2015/03/07/mono-tls-vulnerability/
http://www.openwall.com/lists/oss-security/2015/03/17/9
http://www.securityfocus.com/bid/73256
http://www.ubuntu.com/usn/USN-2547-1
780751 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=780751
cpe:2.3:a:mono-project:mono:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mono-project:mono:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
CVE-2015-2320 https://nvd.nist.gov/vuln/detail/CVE-2015-2320
USN-2547-1 https://usn.ubuntu.com/2547-1/
No exploits are available.
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2015-2320
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2015-2320
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.89106
EPSS Score 0.04829
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:41:24.844603+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/2547-1/ 37.0.0