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
Published Jan 29, 2021
6.5
MEDIUMCVSS 3.1
EPSS 1.85%
Description
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.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:S/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.85% (0.01855) | 78.40th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.91% (0.01907) | 78.84th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.55% (0.00546) | 77.63th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.55% (0.00546) | 76.71th | v3 (v2023.03.01) |
| Oct 2, 2023 | 0.55% (0.00546) | 74.69th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.39% (0.00385) | 69.70th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.32% (0.00321) | 65.90th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.92% (0.01916) | 77.45th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.92% (0.01916) | 75.44th | v2 (v2022.01.01) |
| Feb 4, 2022 | 6.73% (0.06726) | 78.88th | v2 (v2022.01.01) |
| Feb 3, 2022 | 4.50% (0.04504) | 76.47th | v1 |
| Jan 6, 2022 | 4.50% (0.04504) | 76.26th | v1 |
| Jan 5, 2022 | 1.04% (0.01040) | 65.70th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.04% (0.01040) | 0.00th | v1 |
No CWE recorded.
References (4)
- https://downloads.asterisk.org/pub/security/AST-2020-003.html x_refsource_CONFIRMVendor Advisory
- https://downloads.asterisk.org/pub/security/AST-2020-004.html x_refsource_CONFIRMVendor Advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-29191 x_refsource_MISCExploitVendor Advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-29219 x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://downloads.asterisk.org/pub/security/AST-2020-003.html | x_refsource_CONFIRMVendor Advisory | |
| https://downloads.asterisk.org/pub/security/AST-2020-004.html | x_refsource_CONFIRMVendor Advisory | |
| https://issues.asterisk.org/jira/browse/ASTERISK-29191 | x_refsource_MISCExploitVendor Advisory | |
| https://issues.asterisk.org/jira/browse/ASTERISK-29219 | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.