How severe is CVE-2016-6412?

CVE-2016-6412 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2016-6412 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-6412?

CVE-2016-6412 affects Cisco Ios. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-6412?

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

When was CVE-2016-6412 published?

CVE-2016-6412 was published on 2016-09-24 and last updated on 2026-06-17.

CVE-2016-6412

CVE-2016-6412 is a medium-severity vulnerability in Cisco Ios with a CVSS 3.x base score of 6.5. 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 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cisco Ios
Published: 2016-09-24
Last modified: 2026-06-17

Description

The Cisco Application-hosting Framework (CAF) component in Cisco IOS 15.6(1)T1 and IOS XE, when the IOx feature set is enabled, allows man-in-the-middle attackers to trigger arbitrary downloads via crafted HTTP headers, aka Bug ID CSCuz84773.

Frequently asked questions

What is CVE-2016-6412?: The Cisco Application-hosting Framework (CAF) component in Cisco IOS 15.6(1)T1 and IOS XE, when the IOx feature set is enabled, allows man-in-the-middle attackers to trigger arbitrary downloads via crafted HTTP headers, aka Bug ID CSCuz84773.
How severe is CVE-2016-6412?: CVE-2016-6412 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2016-6412 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-6412?: CVE-2016-6412 affects Cisco Ios. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-6412?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-6412 published?: CVE-2016-6412 was published on 2016-09-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:cisco:ios:15.6\(1\)t1:*:*:*:*:*:*:*

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