CVE-2011-4692: WebKit, as used in Apple Safari 5.1.1 and earlier and Google Chrome 15 and earlier, does not prevent capture o

Q: How do I fix CVE-2011-4692?

safari: upgrade to newer than 5.1.1; webkit: mitigate or apply the listed mitigation; chrome: upgrade to newer than 15. Exact commands for each OS are on this page.

Q: Is CVE-2011-4692 being exploited?

CVE-2011-4692 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2011-4692 affect?

CVE-2011-4692 affects safari, webkit, chrome. Severity is medium (CVSS 5.0). WebKit, as used in Apple Safari 5.1.1 and earlier and Google Chrome 15 and earlier, does not prevent capture of data about the time required for image loading, which makes it easier for remote attackers to determine whether an image exists

Q: How urgent is CVE-2011-4692?

Priority 39/100. Public exploit reference

Routine

MEDIUM 5.0UPGRADEMITIGATEUPGRADE

CVE-2011-4692 is a medium-severity flaw (CVSS 5.0) affecting safari, webkit, chrome. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

WebKit, as used in Apple Safari 5.1.1 and earlier and Google Chrome 15 and earlier, does not prevent capture of data about the time required for image loading, which makes it easier for remote attackers to determine whether an image exists in the browser cache via crafted JavaScript code, as demonstrated by visipisi.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.2% (top 33%)
CISA exploited list	No
Weakness	CWE-264
Published	2011-12-07
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: apple · google

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2011-12-07 19:55 UTCPublished CVE record published
2026-06-16 23:35 UTCUpdated Record last modified

apple safari UPGRADE

Affected: <= 5.1.1

Fixed in: newer than 5.1.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy safari || rpm -q safari || safari --version

2. UPGRADE to newer than 5.1.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade safari

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade safari

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

apple webkit MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy webkit || rpm -q webkit || webkit --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

google chrome UPGRADE

Affected: <= 15

Fixed in: newer than 15

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy chrome || rpm -q chrome || chrome --version

2. UPGRADE to newer than 15 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade chrome

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade chrome

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2011-4692?

safari: upgrade to newer than 5.1.1; webkit: mitigate or apply the listed mitigation; chrome: upgrade to newer than 15. Exact commands for each OS are on this page.

Is CVE-2011-4692 being exploited?

CVE-2011-4692 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2011-4692 affect?

CVE-2011-4692 affects safari, webkit, chrome. Severity is medium (CVSS 5.0). WebKit, as used in Apple Safari 5.1.1 and earlier and Google Chrome 15 and earlier, does not prevent capture of data about the time required for image loading, which makes it easier for remote attackers to determine whether an image exists

How urgent is CVE-2011-4692?

Priority 39/100. Public exploit reference

Software pages

Safari vulnerabilities · Google Chrome vulnerabilities · WebKit vulnerabilities · Apple Safari and WebKit vulnerabilities

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References

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