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CVE-2009-1686

29
FAUCET Score

CVE-2009-1686 describes a critical vulnerability in WebKit, affecting Apple Safari before version 4.0 and various iPhone OS versions. This flaw allows remote attackers to execute arbitrary code or cause a denial of service through memory corruption by exploiting improper handling of constant declarations during JavaScript exception handling within a crafted HTML document. With a CVSS score of 9.3, this vulnerability is highly severe, requiring medium attack complexity but allowing for complete compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.0_betaCPE matchmatch criteria
cpe:2.3:a:apple:safari:*:-:mac:*:*:*:*:*
0.8CPE matchmatch criteria
cpe:2.3:a:apple:safari:0.8:-:mac:*:*:*:*:*
0.9CPE matchmatch criteria
cpe:2.3:a:apple:safari:0.9:-:mac:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:apple:safari:1.0:-:mac:*:*:*:*:*
1.0.3CPE matchmatch criteria
cpe:2.3:a:apple:safari:1.0.3:-:mac:*:*:*:*:*

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
7.53%
Probability of exploitation in next 30 days
EPSS Percentile
93.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0753 is in the 72nd 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

Patch Available

Vendor Patches (1)

applepatch availablevia nvd_reference
View patch

References

lists.apple.com / archives/security-announce/2009/jun/msg00002.html
PatchVendor Advisory
lists.apple.com / archives/security-announce/2009/Jun/msg00005.html
lists.opensuse.org / opensuse-security-announce/2011-01/msg00006.html
osvdb.org / 54984
secunia.com / advisories/35379
Vendor Advisory
secunia.com / advisories/43068
securitytracker.com / id
support.apple.com / kb/HT3613
PatchVendor Advisory
support.apple.com / kb/HT3639
securityfocus.com / bid/35260
Exploit
securityfocus.com / bid/35311
vupen.com / english/advisories/2009/1522
PatchVendor Advisory
vupen.com / english/advisories/2009/1621
vupen.com / english/advisories/2011/0212