CVE-2007-0021
Format string vulnerability in Apple iChat 3.1.6 allows remote attackers to cause a denial of...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2007-0021- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2007-0021- Updated
- 2026-11-02
EUVDEUVD-2007-0025 No score
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.
- Record
EUVD-2007-0025- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4c3v-jr8f-g5h4 No score
Format string vulnerability in Apple iChat 3.1.6 allows remote attackers to cause a denial of...
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.
- Record
GHSA-4c3v-jr8f-g5h4- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Apple iChat 3.1.6 441 - 'aim://' URL Handler Format String (PoC) | 2007-01-21 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2007-0021 is a high vulnerability (CVSS 7.5) in Apple Ichat, published January 23, 2007. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 23.7%, the 97th percentile. No source names a fixed version.