LiveActive security incident?Get immediate response
CVE Record

CVE-2012-3863: channels/chan_sip.c in Asterisk Open Source 1.8.x before 1.8.13.1 and 10.x before 10.5.2, Asterisk Business...

channels/chan_sip.c in Asterisk Open Source 1.8.x before 1.8.13.1 and 10.x before 10.5.2, Asterisk Business Edition C.3.x before C.3.7.5, Certified Asterisk 1.8.11-certx before 1.8.11-cert4, and Asterisk Digiumphones 10.x.x-digiumphones before 10.5.2-digiumphones does not properly handle a provisional response to a SIP reINVITE request, which allows remote authenticated users to cause a denial of service (RTP port exhaustion) via sessions that lack final responses.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2012-3863 is a denial-of-service issue in Asterisk SIP handling. An authenticated remote SIP user can trigger RTP port exhaustion through incomplete SIP reINVITE response handling, potentially disrupting voice service. The sources do not provide CVSS scoring or evidence of active exploitation. Exposure is most likely in legacy Asterisk deployments using chan_sip with affected versions and authenticated SIP users. Systems allowing SIP access from broader networks have higher operational risk, but the source bundle indicates authentication is required. Treat this as a service-availability risk for legacy voice infrastructure. Prioritize remediation for internet-reachable or partner-reachable SIP systems, call centers, and business-critical telephony platforms. Mitigation focus: Upgrade affected Asterisk Open Source installations to 1.8.13.1, 10.5.2, or later.; Upgrade listed Business, Certified, and Digiumphones builds to the fixed versions named in the advisory.; Review Asterisk AST-2012-010 and Debian DSA-2550 for vendor-specific remediation guidance..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2012-3863 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.