CVE-2006-2898

Status: ModifiedHigh (7.5)—

The IAX2 channel driver (chan_iax2) for Asterisk 1.2.x before 1.2.9 and 1.0.x before 1.0.11 allows remote attackers to cause a denial of service (crash) and execute arbitrary code via truncated IAX 2 (IAX2) video frames, which bypasses a length check and leads to a buffer overflow involving negative length check. NOTE: the vendor advisory claims that only a DoS is possible, but the original researcher is reliable.

CVSS

Version: 2.0
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Base score: 7.5

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 4.29%
Percentile among all scored CVEs: 91
Score date: 10/7/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Digium — Asterisk

CWEs

CWE-119

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2006-2898",
  "cveTags": [],
  "metrics": {
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
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          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
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  "published": "2006-06-07T10:02:00.000",
  "references": [
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      "value": "The IAX2 channel driver (chan_iax2) for Asterisk 1.2.x before 1.2.9 and 1.0.x before 1.0.11 allows remote attackers to cause a denial of service (crash) and execute arbitrary code via truncated IAX 2 (IAX2) video frames, which bypasses a length check and leads to a buffer overflow involving negative length check.  NOTE: the vendor advisory claims that only a DoS is possible, but the original researcher is reliable."
    }
  ],
  "lastModified": "2026-06-16T22:25:59.947",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:digium:asterisk:1.0.7:*:*:*:*:*:*:*",
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  "sourceIdentifier": "cve@mitre.org",
  "evaluatorSolution": "This vulnerability is addressed in the following product releases:\r\nAsterisk, Asterisk, 1.2.9 \r\nAsterisk, Asterisk, 1.0.11"
}