The IAX2 protocol implementation in Asterisk Open Source 1.0.x, 1.2.x before 1.2.30, and 1.4.x before 1.4.21.2; Business Edition A.x.x, B.x.x before B.2.5.4, and C.x.x before C.1.10.3; AsteriskNOW; Appliance Developer Kit 0.x.x; and s800i 1.0.x before 1.2.0.1 allows remote attackers to cause a denial of service (call-number exhaustion and CPU consumption) by quickly sending a large number of IAX2 (IAX) POKE requests
Published Jul 22, 2008
7.8
HIGHCVSS 2.0
EPSS 28.00%
Description
The IAX2 protocol implementation in Asterisk Open Source 1.0.x, 1.2.x before 1.2.30, and 1.4.x before 1.4.21.2; Business Edition A.x.x, B.x.x before B.2.5.4, and C.x.x before C.1.10.3; AsteriskNOW; Appliance Developer Kit 0.x.x; and s800i 1.0.x before 1.2.0.1 allows remote attackers to cause a denial of service (call-number exhaustion and CPU consumption) by quickly sending a large number of IAX2 (IAX) POKE requests.
Affected products
No data.
- 0.1.0
- 0.1.1
- 0.1.2
- 0.1.3
- 0.1.4
- 0.1.5
- 0.1.6
- 0.1.7
- 0.1.8
- 0.1.9
- 0.1.9_1
- 0.1.10
- 0.1.11
- 0.1.12
- 0.2
- 0.3
- 0.4
- 0.5.0
- 0.7.0
- 0.7.1
- 0.7.2
- 0.9.0
- 1.0
- 1.0
- 1.0.1
- 1.0.2
- 1.0.3
- 1.0.4
- 1.0.5
- 1.0.6
- 1.0.7
- 1.0.8
- 1.0.9
- 1.0.10
- 1.0.11
- 1.0.11.1
- 1.0.12
- 1.2.0_beta1
- 1.2.0_beta2
- 1.2.1
- 1.2.2
- 1.2.3
- 1.2.4
- 1.2.5
- 1.2.6
- 1.2.7
- 1.2.7.1
- 1.2.8
- 1.2.9
- 1.2.9.1
- 1.2.10
- 1.2.11
- 1.2.12
- 1.2.13
- 1.2.14
- 1.2.15
- 1.2.16
- 1.2.17
- 1.2.18
- 1.2.19
- 1.2.20
- 1.2.21
- 1.2.22
- 1.2.23
- 1.2.24
- 1.2.25
- 1.2.26
- 1.2.26.1
- 1.2.26.2
- 1.2.27
- 1.2.28
- 1.2.28.1
- 1.2.29
- 1.2.30
- 1.4.1
- 1.4.2
- 1.4.3
- 1.4.4
- 1.4.4_2007-04-27
- 1.4.5
- 1.4.6
- 1.4.7
- 1.4.8
- 1.4.9
- 1.4.10
- 1.4.11
- 1.4.12
- 1.4.13
- 1.4.14
- 1.4.15
- 1.4.16
- 1.4.16.1
- 1.4.16.2
- 1.4.17
- 1.4.18
- 1.4.18.1
- 1.4.19
- 1.4_beta
- 1.4_revision_95946
- 1.6
- a
- a
- b.1.3.2
- b.1.3.2
- b.1.3.3
- b.1.3.3
- b.2.2.0
- b.2.2.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
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.
AV:N/AC:L/Au:N/C:N/I:N/A:C
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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 28.00% (0.28000) | 98.05th | v5 (v2026.06.15) |
| Jun 15, 2026 | 28.00% (0.28000) | 97.85th | v5 (v2026.06.15) |
| Mar 2, 2026 | 36.10% (0.36096) | 97.03th | v4 (v2025.03.14) |
| Feb 3, 2026 | 50.31% (0.50309) | 97.77th | v4 (v2025.03.14) |
| Dec 16, 2025 | 53.21% (0.53208) | 97.85th | v4 (v2025.03.14) |
| Jul 22, 2025 | 51.55% (0.51548) | 97.77th | v4 (v2025.03.14) |
| Apr 6, 2025 | 50.25% (0.50252) | 97.61th | v4 (v2025.03.14) |
| Mar 30, 2025 | 56.74% (0.56744) | 97.94th | v4 (v2025.03.14) |
| Mar 29, 2025 | 53.82% (0.53818) | 97.09th | v4 (v2025.03.14) |
| Mar 19, 2025 | 56.74% (0.56744) | 97.86th | v4 (v2025.03.14) |
| Mar 17, 2025 | 72.88% (0.72882) | 98.70th | v4 (v2025.03.14) |
| Dec 12, 2024 | 96.59% (0.96590) | 99.68th | v3 (v2023.03.01) |
| Mar 7, 2024 | 96.59% (0.96590) | 99.59th | v3 (v2023.03.01) |
| Jan 31, 2024 | 96.62% (0.96623) | 99.55th | v3 (v2023.03.01) |
| Oct 16, 2023 | 96.57% (0.96567) | 99.47th | v3 (v2023.03.01) |
| Aug 5, 2023 | 96.47% (0.96470) | 99.38th | v3 (v2023.03.01) |
| Mar 7, 2023 | 96.59% (0.96592) | 99.30th | v3 (v2023.03.01) |
| Mar 6, 2023 | 12.57% (0.12567) | 95.52th | v2 (v2022.01.01) |
| Apr 1, 2022 | 12.57% (0.12567) | 95.18th | v2 (v2022.01.01) |
| Feb 4, 2022 | 12.57% (0.12567) | 90.03th | v2 (v2022.01.01) |
References (12)
- http://downloads.digium.com/pub/security/AST-2008-010.html x_refsource_CONFIRM
- http://downloads.securityfocus.com/vulnerabilities/exploits/30321.pl x_refsource_MISCExploit
- http://secunia.com/advisories/31178 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/31194 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/34982 third-party-advisoryx_refsource_SECUNIA
- http://security.gentoo.org/glsa/glsa-200905-01.xml vendor-advisoryx_refsource_GENTOO
- http://www.securityfocus.com/archive/1/494675/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/30321 vdb-entryx_refsource_BIDExploit
- http://www.securitytracker.com/id?1020535 vdb-entryx_refsource_SECTRACK
- http://www.vupen.com/english/advisories/2008/2168/references vdb-entryx_refsource_VUPEN
- https://exchange.xforce.ibmcloud.com/vulnerabilities/43942 vdb-entryx_refsource_XF
- https://www.redhat.com/archives/fedora-package-announce/2008-July/msg00839.html vendor-advisoryx_refsource_FEDORA
Change history (0)
No recorded changes yet.