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Vulnerability details: VCID-2fvx-kdpt-2ue7
Vulnerability ID VCID-2fvx-kdpt-2ue7
Aliases CVE-2020-35652
Summary An issue was discovered in res_pjsip_diversion.c in Sangoma Asterisk before 13.38.0, 14.x through 16.x before 16.15.0, 17.x before 17.9.0, and 18.x before 18.1.0. A crash can occur when a SIP message is received with a History-Info header that contains a tel-uri, or when a SIP 181 response is received that contains a tel-uri in the Diversion header.
Status Published
Exploitability 0.5
Weighted Severity 5.9
Risk 3.0
Affected and Fixed Packages Package Details
Weaknesses (0)
There are no known CWE.
System Score Found at
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2020-35652
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2020-35652
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2020-35652
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2020-35652
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2020-35652
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2020-35652
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2020-35652
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2020-35652
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2020-35652
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2020-35652
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2020-35652
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2020-35652
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2020-35652
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2020-35652
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2020-35652
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2020-35652
cvssv2 4.0 https://nvd.nist.gov/vuln/detail/CVE-2020-35652
cvssv3.1 6.5 https://nvd.nist.gov/vuln/detail/CVE-2020-35652
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2020-35652
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35652
https://downloads.asterisk.org/pub/security/AST-2020-003.html
https://downloads.asterisk.org/pub/security/AST-2020-004.html
https://issues.asterisk.org/jira/browse/ASTERISK-29191
https://issues.asterisk.org/jira/browse/ASTERISK-29219
979372 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=979372
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
CVE-2020-35652 https://nvd.nist.gov/vuln/detail/CVE-2020-35652
No exploits are available.
Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2020-35652
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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-35652
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 0.30854
EPSS Score 0.00114
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:29:08.282229+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.16/main.json 37.0.0