CVE-2007-2488

Asterisk vulnerability

CVSS

10.0

EPSS

4.3%

EPSS pct

90th

Exploited

No known

The IAX2 channel driver (chan_iax2) in Asterisk before 20070504 does not properly null terminate data, which allows remote attackers to trigger loss of transmitted data, and possibly obtain sensitive information (memory contents) or cause a denial of service (application crash), by sending a frame that lacks a 0 byte.

Affected vendor

Asterisk

Affected product

Asterisk

CVSS vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Published

2007-05-07

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to complete impact to confidentiality, complete impact to integrity, complete impact to availability.

Its EPSS score of 4.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 90% of all scored CVEs.

Check your external exposure to CVE-2007-2488

Confirm whether Asterisk Asterisk is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2007-2488.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2007-2488

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2007-2488 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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