CVE-2008-1923

highpriority · track · 28EPSS 0.014 · 72 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.40% (72nd) EPSS

CVSS 7.1 · high

Is it mine?

104 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-28

The IAX2 channel driver (chan_iax2) in Asterisk 1.2 before revision 72630 and 1.4 before revision 65679, when configured to allow unauthenticated calls, sends "early audio" to an unverified source IP address of a NEW message, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed NEW message.

cvss

Technical severity, 0–10. One row per scoring source.

7.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6–7.1

v2.07.1highAV:N/AC:M/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 8.6 · impact 6.9

v2.06mediumAV:N/AC:M/Au:N/C:N/I:N/A:C/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-16USprimary

affected products (104)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
asterisk asterisk appliance developer kitall versionsnvdUScpe:2.3:a:asterisk:asterisk_appliance_developer_kit:*:*:*:*:*:*:*:*
asterisk asterisk business edition≤ b2.5.1nvdUScpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:*
asterisk asterisk business edition≤ c1.8.0nvdUScpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:*
asterisk asterisk business edition= anvdUScpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:*
asterisk asterisk business edition= b.1.3.2nvdUScpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:*
asterisk asterisk business edition= b.1.3.3nvdUScpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:*
asterisk asterisk business edition= b.2.2.0nvdUScpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:*
asterisk asterisk business edition= b.2.2.1nvdUScpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:*
asterisk asterisk business edition= b.2.3.1nvdUScpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:*
asterisk asterisk business edition= b.2.3.2nvdUScpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:*
asterisk asterisk business edition= b.2.3.3nvdUScpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:*
asterisk asterisk business edition= b.2.3.4nvdUScpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:*
asterisk asterisk business edition= b.2.5.0nvdUScpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:*
asterisk asterisk business edition= c.1.0-beta7nvdUScpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:*
asterisk asterisk business edition= c.1.0-beta8nvdUScpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:*
asterisk asterisk business edition= c.1.0beta7nvdUScpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:*
asterisk asterisk business edition= c.1.6.1nvdUScpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:*
asterisk asterisknow≤ 1.0.2nvdUScpe:2.3:a:asterisk:asterisknow:*:*:*:*:*:*:*:*
asterisk asterisknow= 1.0nvdUScpe:2.3:a:asterisk:asterisknow:*:*:*:*:*:*:*:*

showing 20 of 104

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 2008-04-23modified 2026-06-16

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+341 more

references (8)

External citations — patches, advisories, analysis.

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