How severe is CVE-2017-12306?

CVE-2017-12306 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2017-12306 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-12306?

CVE-2017-12306 affects Cisco Conference Director. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-12306?

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

When was CVE-2017-12306 published?

CVE-2017-12306 was published on 2017-11-16 and last updated on 2026-06-17.

CVE-2017-12306

CVE-2017-12306 is a medium-severity vulnerability in Cisco Conference Director with a CVSS 3.x base score of 4.4. 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-494.

Key facts

Severity: Medium (CVSS 3.x base score 4.4)
CVSS v2: 2.1
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-494
Affected product: Cisco Conference Director
Published: 2017-11-16
Last modified: 2026-06-17

Description

A vulnerability in the upgrade process of Cisco Spark Board could allow an authenticated, local attacker to install an unverified upgrade package, aka Signature Verification Bypass. The vulnerability is due to insufficient upgrade package validation. An attacker could exploit this vulnerability by providing the upgrade process with an upgrade package that the attacker controls. An exploit could allow the attacker to install custom firmware to the Spark Board. Cisco Bug IDs: CSCvf84502.

Frequently asked questions

What is CVE-2017-12306?: A vulnerability in the upgrade process of Cisco Spark Board could allow an authenticated, local attacker to install an unverified upgrade package, aka Signature Verification Bypass. The vulnerability is due to insufficient upgrade package validation. An attacker could exploit this vulnerability by providing the upgrade process with an upgrade package that the attacker controls. An exploit could allow the attacker to install custom firmware to the Spark Board. Cisco Bug IDs: CSCvf84502.
How severe is CVE-2017-12306?: CVE-2017-12306 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2017-12306 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-12306?: CVE-2017-12306 affects Cisco Conference Director. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-12306?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-12306 published?: CVE-2017-12306 was published on 2017-11-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cisco:conference_director:2017-08-15:*:*:*:*:*:*:*

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