How severe is CVE-2012-2948?

CVE-2012-2948 has a CVSS 2.0 base score of 4.0, rated medium severity.

Is CVE-2012-2948 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-2948?

CVE-2012-2948 primarily affects Asterisk Certified Asterisk. In total, 71 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-2948?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-2948 published?

CVE-2012-2948 was published on 2012-06-02 and last updated on 2026-06-16.

CVE-2012-2948

CVE-2012-2948 is a medium-severity vulnerability in Asterisk Certified Asterisk with a CVSS 2.0 base score of 4.0. 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-399.

Key facts

Severity: Medium (CVSS 2.0 base score 4.0)
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Asterisk Certified Asterisk
Published: 2012-06-02
Last modified: 2026-06-16

Description

chan_skinny.c in the Skinny (aka SCCP) channel driver in Certified Asterisk 1.8.11-cert before 1.8.11-cert2 and Asterisk Open Source 1.8.x before 1.8.12.1 and 10.x before 10.4.1 allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) by closing a connection in off-hook mode.

Frequently asked questions

What is CVE-2012-2948?: chan_skinny.c in the Skinny (aka SCCP) channel driver in Certified Asterisk 1.8.11-cert before 1.8.11-cert2 and Asterisk Open Source 1.8.x before 1.8.12.1 and 10.x before 10.4.1 allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) by closing a connection in off-hook mode.
How severe is CVE-2012-2948?: CVE-2012-2948 has a CVSS 2.0 base score of 4.0, rated medium severity.
Is CVE-2012-2948 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-2948?: CVE-2012-2948 primarily affects Asterisk Certified Asterisk. In total, 71 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-2948?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-2948 published?: CVE-2012-2948 was published on 2012-06-02 and last updated on 2026-06-16.

References

Affected products (71)

cpe:2.3:a:asterisk:certified_asterisk:1.8.11:cert:*:*:*:*:*:*
cpe:2.3:a:asterisk:certified_asterisk:1.8.11:cert1:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.0:beta1:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.0:beta2:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.0:beta3:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.0:beta4:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.0:beta5:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.0:rc1:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.0:rc2:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.0:rc3:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.0:rc4:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.0:rc5:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.1:rc1:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.2:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.2:rc1:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.3:rc1:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.5:rc1:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.5.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.6.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.6.0:rc1:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.6.0:rc2:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.6.0:rc3:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.7.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.7.0:rc1:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.7.0:rc2:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.8.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.8.0:rc1:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.8.0:rc2:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.8.0:rc3:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.8.0:rc4:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.8.0:rc5:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.9.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.9.0:rc1:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.9.0:rc2:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.9.0:rc3:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.10.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.10.0:rc1:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.8.10.0:rc2:*:*:*:*:*:*

More vulnerabilities in Asterisk Certified Asterisk

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-2017-9358 — High (CVSS 7.5): A memory exhaustion vulnerability exists in Asterisk Open Source 13.x before 13.15.1 and 14.x before 14.4.1 and…
CVE-2024-42365 — High (CVSS 7.4): Asterisk is an open source private branch exchange (PBX) and telephony toolkit. Prior to asterisk versions 18.24.2,…
CVE-2021-37706 — High (CVSS 7.3): PJSIP is a free and open source multimedia communication library written in C language implementing standard based…

All CVEs affecting Asterisk Certified Asterisk →

Other CWE-399 (Resource Management Errors) vulnerabilities

CVE-2015-8104 — Critical (CVSS 10.0): The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a…
CVE-2015-0339 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2015-0335 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2015-0333 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2014-4121 — Critical (CVSS 10.0): Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2 does not properly parse internationalized…
CVE-2014-0560 — Critical (CVSS 10.0): Use-after-free vulnerability in Adobe Reader and Acrobat 10.x before 10.1.12 and 11.x before 11.0.09 on Windows and OS…

Browse all CWE-399 (Resource Management Errors) vulnerabilities →