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CVE-2007-3944

28
FAUCET Score

CVE-2007-3944 describes multiple heap-based buffer overflows within the PCRE library used by the JavaScript engine in Apple Safari 3 Beta and iPhone before version 1.0.1. This critical vulnerability, with a CVSS score of 9.3, allows remote attackers to execute arbitrary code through specially crafted JavaScript regular expressions. While the attack complexity is medium, successful exploitation could lead to complete compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this decade-old vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
3.0CPE matchmatch criteria
cpe:2.3:a:apple:safari:3.0:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:apple:webkit:*:*:*:*:*:*:*:*
<= 1.0.0CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.53%
Probability of exploitation in next 30 days
EPSS Percentile
93.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0653 is in the 68th percentile among its peer group of 8,920 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

docs.info.apple.com / article.html
docs.info.apple.com / article.html
secunia.com / advisories/26287
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/35577
nytimes.com / 2007/07/23/technology/23iphone.html
securityevaluators.com / iphone
securityevaluators.com / iphone/exploitingiphone.pdf
securityfocus.com / bid/25002
securitytracker.com / id
vupen.com / english/advisories/2007/2730
Vendor Advisory
vupen.com / english/advisories/2007/2731
Vendor Advisory