How severe is CVE-2009-3723?

CVE-2009-3723 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2009-3723 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-3723?

CVE-2009-3723 primarily affects Sangoma Asterisk. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-3723?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2009-3723 published?

CVE-2009-3723 was published on 2019-10-29 and last updated on 2026-06-16.

CVE-2009-3723

CVE-2009-3723 is a high-severity vulnerability in Sangoma Asterisk with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Sangoma Asterisk
Published: 2019-10-29
Last modified: 2026-06-16

Description

asterisk allows calls on prohibited networks

Frequently asked questions

What is CVE-2009-3723?: asterisk allows calls on prohibited networks
How severe is CVE-2009-3723?: CVE-2009-3723 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2009-3723 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-3723?: CVE-2009-3723 primarily affects Sangoma Asterisk. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-3723?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2009-3723 published?: CVE-2009-3723 was published on 2019-10-29 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

More vulnerabilities in Sangoma Asterisk

CVE-2024-57520 — Critical (CVSS 9.8): Insecure Permissions vulnerability in asterisk v22 allows a remote attacker to execute arbitrary code via the…
CVE-2022-21723 — Critical (CVSS 9.1): PJSIP is a free and open source multimedia communication library written in C language implementing standard based…
CVE-2012-2186 — Critical (CVSS 9.0): Incomplete blacklist vulnerability in main/manager.c in Asterisk Open Source 1.8.x before 1.8.15.1 and 10.x before…
CVE-2022-23608 — High (CVSS 8.1): PJSIP is a free and open source multimedia communication library written in C language implementing standard based…
CVE-2025-1131 — High (CVSS 7.8): A local privilege escalation vulnerability exists in the safe_asterisk script included with the Asterisk toolkit…
CVE-2025-47780 — High (CVSS 7.8): Asterisk is an open-source private branch exchange (PBX). Prior to versions 18.26.2, 20.14.1, 21.9.1, and 22.4.1 of…

All CVEs affecting Sangoma Asterisk →

Other CWE-863 (Incorrect Authorization) vulnerabilities

CVE-2026-69555 — Critical (CVSS 10.0): Incorrect authorization in Azure Arc allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-71398 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) is affected by an Incorrect Authorization vulnerability that could result in arbitrary…
CVE-2026-27302 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) is affected by an Incorrect Authorization vulnerability that could result in arbitrary…
CVE-2026-48449 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) is affected by an Incorrect Authorization vulnerability that could result in arbitrary…
CVE-2026-48286 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9396 and earlier are affected by an Incorrect Authorization…
CVE-2026-48303 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9394 and earlier are affected by an Incorrect Authorization…

Browse all CWE-863 (Incorrect Authorization) vulnerabilities →