What is CVE-2017-9498?

CVE-2017-9498 is a medium-severity vulnerability in Comcast Xfinity Xr11-20, classified under Improper Validation of Integrity Check Value. CVSS score: 5.5/10. Published 2017-07-31.

How severe is CVE-2017-9498?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Comcast Xfinity Xr11-20

CVE-2017-9498

The Comcast firmware on Motorola MX011ANM (firmware version MX011AN_2.9p6s1_PROD_sey) and Xfinity XR11-20 Voice Remote devices allows local users to upload arbitrary firmware images to an XR11 by leveraging root access. In other words, there is no protection mechanism involving digital signatures for the firmware.

Published 2017-07-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (7.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 7.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Comcast Xfinity Xr11-20
Comcast Xfinity Xr11-20 Firmware
Motorola Mx011anm
Motorola Mx011anm Firmware — versions mx011an_2.9p6s1_prod_sey

Weakness classification (CWE)

CWE-354 — Improper Validation of Integrity Check Value

References

github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-42.rem… (Third Party Advisory)

Frequently asked questions

What is CVE-2017-9498?: CVE-2017-9498 is a medium-severity vulnerability in Comcast Xfinity Xr11-20, classified under Improper Validation of Integrity Check Value. CVSS score: 5.5/10. Published 2017-07-31.
How severe is CVE-2017-9498?: Medium severity. CVSS v3 base score is 5.5 out of 10.