How severe is CVE-2017-9480?

CVE-2017-9480 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2017-9480 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-9480?

CVE-2017-9480 affects Cisco Dpc3939 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-9480?

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

When was CVE-2017-9480 published?

CVE-2017-9480 was published on 2017-07-31 and last updated on 2026-06-17.

CVE-2017-9480

CVE-2017-9480 is a medium-severity vulnerability in Cisco Dpc3939 Firmware with a CVSS 3.x base score of 5.5. 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Cisco Dpc3939 Firmware
Published: 2017-07-31
Last modified: 2026-06-17

Description

The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows local users (e.g., users who have command access as a consequence of CVE-2017-9479 exploitation) to read arbitrary files via UPnP access to /var/IGD/.

Frequently asked questions

What is CVE-2017-9480?: The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows local users (e.g., users who have command access as a consequence of CVE-2017-9479 exploitation) to read arbitrary files via UPnP access to /var/IGD/.
How severe is CVE-2017-9480?: CVE-2017-9480 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2017-9480 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-9480?: CVE-2017-9480 affects Cisco Dpc3939 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-9480?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-9480 published?: CVE-2017-9480 was published on 2017-07-31 and last updated on 2026-06-17.

References

https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-23.upnp-directory-write.txt

Affected products (1)

cpe:2.3:o:cisco:dpc3939_firmware:dpc3939-p20-18-v303r20421746-170221a-cmcst:*:*:*:*:*:*:*

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