How severe is CVE-2015-5841?

CVE-2015-5841 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2015-5841 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-5841?

CVE-2015-5841 primarily affects Apple Mac Os X. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-5841?

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

When was CVE-2015-5841 published?

CVE-2015-5841 was published on 2015-09-18 and last updated on 2026-06-17.

CVE-2015-5841

CVE-2015-5841 is a medium-severity vulnerability in Apple Mac Os X with a CVSS 2.0 base score of 5.0. 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-74.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Apple Mac Os X
Published: 2015-09-18
Last modified: 2026-06-17

Description

The CFNetwork Proxies component in Apple iOS before 9 does not properly handle a Set-Cookie header within a response to an HTTP CONNECT request, which allows remote proxy servers to conduct cookie-injection attacks via a crafted response.

Frequently asked questions

What is CVE-2015-5841?: The CFNetwork Proxies component in Apple iOS before 9 does not properly handle a Set-Cookie header within a response to an HTTP CONNECT request, which allows remote proxy servers to conduct cookie-injection attacks via a crafted response.
How severe is CVE-2015-5841?: CVE-2015-5841 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2015-5841 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-5841?: CVE-2015-5841 primarily affects Apple Mac Os X. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-5841?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-5841 published?: CVE-2015-5841 was published on 2015-09-18 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:watchos:1.0:*:*:*:*:*:*:*

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