CVE-2007-0647 — Format string vulnerability in Help Viewer 3.0.0 allows remote user-assisted attackers to cause a denial of service (crash) via format string specifiers in a filename, which is not properly handled when calling the NSBeginAlertSheet Apple AppKit function

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HIGH

Format string vulnerability in Help Viewer 3.0.0 allows remote user-assisted attackers to cause a denial of service (crash) via format string specifiers in a filename, which is not properly handled when calling the NSBeginAlertSheet Apple AppKit function

Published Feb 1, 2007

7.1

HIGH

CVSS 2.0

EPSS 2.63%

Description

Format string vulnerability in Help Viewer 3.0.0 allows remote user-assisted attackers to cause a denial of service (crash) via format string specifiers in a filename, which is not properly handled when calling the NSBeginAlertSheet Apple AppKit function.

Affected products

Remediation

No remediation recorded yet.

Metrics

2.63% 0.02627

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.02627

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (13 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	2.63% (0.02627)	84.95th	v5 (v2026.06.15)
Jun 15, 2026	2.50% (0.02500)	82.58th	v5 (v2026.06.15)
Jun 14, 2026	7.74% (0.07735)	92.15th	v4 (v2025.03.14)
Apr 17, 2026	6.38% (0.06378)	91.03th	v4 (v2025.03.14)
Aug 5, 2025	4.72% (0.04717)	88.97th	v4 (v2025.03.14)
Mar 17, 2025	3.33% (0.03330)	86.45th	v4 (v2025.03.14)
Dec 12, 2024	1.31% (0.01312)	86.50th	v3 (v2023.03.01)
Jun 26, 2024	1.31% (0.01312)	86.00th	v3 (v2023.03.01)
Dec 5, 2023	1.23% (0.01231)	83.81th	v3 (v2023.03.01)
Mar 7, 2023	1.10% (0.01103)	82.20th	v3 (v2023.03.01)
Mar 6, 2023	1.96% (0.01963)	78.58th	v2 (v2022.01.01)
Apr 1, 2022	1.96% (0.01963)	76.70th	v2 (v2022.01.01)
Feb 4, 2022	1.96% (0.01963)	55.84th	v2 (v2022.01.01)

Weaknesses (0)

No CWE recorded.

References (3)

http://www.digitalmunition.com/MOAB-30-01-2007.html
x_refsource_MISCExploitVendor Advisory
http://www.osvdb.org/32707
vdb-entryx_refsource_OSVDB
http://www.securityfocus.com/bid/22326
vdb-entryx_refsource_BID

Link	Providers	Tags
http://www.digitalmunition.com/MOAB-30-01-2007.html		x_refsource_MISCExploitVendor Advisory
http://www.osvdb.org/32707		vdb-entryx_refsource_OSVDB
http://www.securityfocus.com/bid/22326		vdb-entryx_refsource_BID

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Feb 1, 2007

Updated Aug 7, 2024

Reserved Jan 31, 2007

Link CVE-2007-0647

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2007-0647

Red Hat

Severity n/a

Public date n/a

Links CVE-2007-0647