← Vulnerability feed

Vulnerability record · CVE-2009-1686 · published 10 June 2009

CVE-2009-1686: Apple safari improper input validation vulnerability

Apple · Safari

WebKit in Apple Safari before 4.0, iPhone OS 1.0 through 2.2.1, and iPhone OS for iPod touch 1.1 through 2.2.1 does not properly handle constant (aka const) declarations in a type-conversion operation during JavaScript exception handling, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted HTML document.

9.3 CVSS 2.0 High EPSS 7.5% · top 5.7% CWE-20 · Improper input validation
9.3CVSS 2.0 base score
7.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
28References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

WebKit in Apple Safari before 4.0, iPhone OS 1.0 through 2.2.1, and iPhone OS for iPod touch 1.1 through 2.2.1 does not properly handle constant (aka const) declarations in a type-conversion operation during JavaScript exception handling, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted HTML document.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.apple.com/archives/security-announce/2009/Jun/msg00005.html
http://lists.apple.com/archives/security-announce/2009/jun/msg00002.html PatchVendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html
http://osvdb.org/54984
http://secunia.com/advisories/35379 Vendor Advisory
http://secunia.com/advisories/43068
http://securitytracker.com/id?1022345
http://support.apple.com/kb/HT3613 PatchVendor Advisory
http://support.apple.com/kb/HT3639
http://www.securityfocus.com/bid/35260 Exploit
http://www.securityfocus.com/bid/35311
http://www.vupen.com/english/advisories/2009/1522 PatchVendor Advisory
http://www.vupen.com/english/advisories/2009/1621
http://www.vupen.com/english/advisories/2011/0212
http://lists.apple.com/archives/security-announce/2009/Jun/msg00005.html
http://lists.apple.com/archives/security-announce/2009/jun/msg00002.html PatchVendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html
http://osvdb.org/54984
http://secunia.com/advisories/35379 Vendor Advisory
http://secunia.com/advisories/43068
http://securitytracker.com/id?1022345
http://support.apple.com/kb/HT3613 PatchVendor Advisory
http://support.apple.com/kb/HT3639
http://www.securityfocus.com/bid/35260 Exploit
http://www.securityfocus.com/bid/35311
http://www.vupen.com/english/advisories/2009/1522 PatchVendor Advisory
http://www.vupen.com/english/advisories/2009/1621
http://www.vupen.com/english/advisories/2011/0212

Track CVE-2009-1686 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2025-24201Apple WebKit out-of-bounds write allows sandbox escapeCVE-2025-24201 is an out-of-bounds write in Apple's WebKit that was addressed with improved checks. Maliciously crafted web content may break out of …KEVEPSS 3.8%analysed8.8CVE-2025-43529Apple WebKit use-after-free allows code execution via crafted web contentA use-after-free flaw in Apple's WebKit engine was fixed through improved memory management across Safari, iOS, iPadOS, macOS, tvOS, visionOS and wat…KEVEPSS 8.8%analysed8.8CVE-2025-14174Google Chrome ANGLE out-of-bounds memory access on MacChrome on macOS before 143.0.7499.110 contains an out-of-bounds memory access in the ANGLE graphics layer, classified as an out-of-bounds write (CWE-…KEVEPSS 22%analysed8.8CVE-2023-43000Apple WebKit use-after-free via malicious web contentA use-after-free flaw in Apple's WebKit engine was fixed by improved memory management in macOS Ventura 13.5, iOS/iPadOS 16.6, Safari 16.6, and iOS/i…KEVEPSS 3.9%analysed8.8CVE-2025-31277Apple WebKit memory corruption via malicious web contentApple WebKit fails to handle memory correctly when processing crafted web content, leading to memory corruption across Safari, iOS, iPadOS, macOS, tv…KEVEPSS 1.6%analysed8.8CVE-2025-6558Chrome ANGLE and GPU input validation flaw enables sandbox escapeGoogle Chrome before 138.0.7204.157 fails to properly validate untrusted input in ANGLE and the GPU component, allowing a crafted HTML page to trigge…KEVEPSS 9.6%analysed8.8CVE-2024-44308Apple WebKit code execution via malicious web contentApple fixed a WebKit flaw with improved checks across Safari, iOS, iPadOS, macOS and visionOS. Processing maliciously crafted web content can lead to…KEVEPSS 10%analysed8.8CVE-2024-23222Apple WebKit type confusion allows code execution via crafted web contentA type confusion flaw in Apple's WebKit engine was addressed with improved checks. Processing maliciously crafted web content can lead to arbitrary c…KEVEPSS 11%analysed

Source: NIST National Vulnerability Database (record CVE-2009-1686), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.