CVE-2011-0159 — The Safari Settings feature in Safari in Apple iOS 4.x before 4.3 does not properly implement the clearing of cookies during execution of the Safari application, which might make it easier for remote web servers to track users by setting a cookie

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MEDIUM

The Safari Settings feature in Safari in Apple iOS 4.x before 4.3 does not properly implement the clearing of cookies during execution of the Safari application, which might make it easier for remote web servers to track users by setting a cookie

Published Mar 11, 2011

5.0

MEDIUM

CVSS 2.0

EPSS 1.72%

Description

The Safari Settings feature in Safari in Apple iOS 4.x before 4.3 does not properly implement the clearing of cookies during execution of the Safari application, which might make it easier for remote web servers to track users by setting a cookie.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.72% 0.01717

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

EPSS probability 0.01717

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 (10 key points)

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

Date	Score	Percentile	Model
Oct 1, 2026	1.72% (0.01717)	76.60th	v5 (v2026.06.15)
Jun 15, 2026	1.72% (0.01717)	74.39th	v5 (v2026.06.15)
Mar 17, 2025	0.61% (0.00613)	68.03th	v4 (v2025.03.14)
Dec 12, 2024	0.30% (0.00303)	70.51th	v3 (v2023.03.01)
Mar 27, 2024	0.30% (0.00303)	69.10th	v3 (v2023.03.01)
Feb 8, 2024	0.38% (0.00376)	72.04th	v3 (v2023.03.01)
Mar 7, 2023	0.38% (0.00377)	68.54th	v3 (v2023.03.01)
Mar 6, 2023	2.48% (0.02479)	81.66th	v2 (v2022.01.01)
Apr 1, 2022	2.48% (0.02479)	79.90th	v2 (v2022.01.01)
Feb 4, 2022	2.48% (0.02479)	58.49th	v2 (v2022.01.01)

Weaknesses (1)

CWE-20

Improper Input Validation

References (4)

http://lists.apple.com/archives/security-announce/2011//Mar/msg00003.html
vendor-advisoryx_refsource_APPLEVendor Advisory
http://support.apple.com/kb/HT4564
x_refsource_CONFIRMVendor Advisory
http://www.securityfocus.com/bid/46810
vdb-entryx_refsource_BID
http://www.securitytracker.com/id?1025182
vdb-entryx_refsource_SECTRACK

Link	Providers	Tags
http://lists.apple.com/archives/security-announce/2011//Mar/msg00003.html		vendor-advisoryx_refsource_APPLEVendor Advisory
http://support.apple.com/kb/HT4564		x_refsource_CONFIRMVendor Advisory
http://www.securityfocus.com/bid/46810		vdb-entryx_refsource_BID
http://www.securitytracker.com/id?1025182		vdb-entryx_refsource_SECTRACK

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner apple

Published Mar 11, 2011

Updated Aug 6, 2024

Reserved Dec 23, 2010

Link CVE-2011-0159

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2011-0159

Red Hat

Severity n/a

Public date n/a

Links CVE-2011-0159