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TI-2007-00020 Aliases CVE-2007-0021GHSA-4c3v-jr8f-g5h4

Format string vulnerability in Apple iChat 3.1.6 allows remote attackers to cause a…

Priority MEDIUM 53Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Partial · Partial · Partial
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

Format string vulnerability in Apple iChat 3.1.6 allows remote attackers to cause a denial of service (null pointer dereference and application crash) and possibly execute arbitrary code via format string specifiers in an aim:// URI.

Why it matters now

EPSS 0.23688 97th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apple:ichat:3.1.6:*:*:*:*:*:*:*3.1.6VulnerableApple
  • cpe:2.3:a:apple:ichat:3.1.6:*:*:*:*:*:*:* Versions 3.1.6 Vulnerable ·Apple

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2007-0021
  2. 2026-10-03 Alias added: GHSA-4c3v-jr8f-g5h4

References

Exploit 1

Advisory 3

Other 3

  • TI-2007-00599 The Bonjour functionality in mDNSResponder, iChat 3.1.6, and InstantMessage framework 428… CVSS 2.0HIGH 7.8
  • TI-2007-03636 The Java interface to CoreAudio on Apple Mac OS X 10.3.9 and 10.4.10 does not restrict… CVSS 2.0MEDIUM 6.8
  • TI-2007-03635 The Java interface to CoreAudio on Apple Mac OS X 10.3.9 and 10.4.10 does not properly… CVSS 2.0MEDIUM 6.8
  • TI-2004-00796 Apple iChat AV 2.1, AV 2.0, and 1.0.1 allows remote attackers to execute arbitrary… CVSS 2.0HIGH 7.5
  • TI-2007-00598 The Bonjour functionality in mDNSResponder, iChat 3.1.6, and InstantMessage framework 428… CVSS 2.0MEDIUM 5.0
  • TI-2007-03637 Buffer overflow in the UPnP IGD (Internet Gateway Device Standardized Device Control… CVSS 2.0MEDIUM 5.4
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences