How severe is CVE-2009-3271?

CVE-2009-3271 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2009-3271 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-3271?

CVE-2009-3271 primarily affects Apple Safari. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-3271?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-3271 published?

CVE-2009-3271 was published on 2009-09-21 and last updated on 2026-06-16.

CVE-2009-3271

CVE-2009-3271 is a medium-severity vulnerability in Apple Safari with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Apple Safari
Published: 2009-09-21
Last modified: 2026-06-16

Description

Apple Safari on iPhone OS 3.0.1 allows remote attackers to cause a denial of service (application crash) via a long tel: URL in the SRC attribute of an IFRAME element.

Frequently asked questions

What is CVE-2009-3271?: Apple Safari on iPhone OS 3.0.1 allows remote attackers to cause a denial of service (application crash) via a long tel: URL in the SRC attribute of an IFRAME element.
How severe is CVE-2009-3271?: CVE-2009-3271 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2009-3271 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-3271?: CVE-2009-3271 primarily affects Apple Safari. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-3271?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-3271 published?: CVE-2009-3271 was published on 2009-09-21 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:3.0.1:*:*:*:*:*:*:*

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