Buffer overflow in Compal 7284e
CVE-2019-19494
Broadcom based cable modems across multiple vendors are vulnerable to a buffer overflow, which allows a remote attacker to execute arbitrary code at the kernel level via JavaScript run in a victim's browser. Examples of affected products include Sagemcom F@st 3890 prior to 50.10.21_T4, Sagemcom F@st 3890 prior to 05.76.6.3f, Sagemcom F@st 3686 3.428.0, Sagemcom F@st 3686 4.83.0, NETGEAR CG3700EMR 2.01.05, NETGEAR CG3700EMR 2.01.03, NETGEAR C6250EMR 2.01.05, NETGEAR C6250EMR 2.01.03, Technicolor TC7230 STEB 01.25, COMPAL 7284E 5.510.5.11, and COMPAL 7486E 5.510.5.11.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.231 (97.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.229 · newest: 0.231 · change: +0.002
Affected products
- Compal 7284e
- Compal 7284e Firmware — versions 5.510.5.11
- Compal 7486e
- Compal 7486e Firmware — versions 5.510.5.11
- NETGEAR C6250emr
- NETGEAR C6250emr Firmware — versions 2.01.03, 2.01.05
- NETGEAR Cg3700emr
- NETGEAR Cg3700emr Firmware — versions 2.01.03, 2.01.05
- Sagemcom F\@st 3686
- Sagemcom F\@st 3686 Firmware — versions 3.428.0, 4.83.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.broadcom.com (Product)
- cablehaunt.com (Technical Description, Exploit, Third Party Advisory)
- github.com/Lyrebirds/Fast8690-exploit (Exploit, Third Party Advisory)
- github.com/Lyrebirds/Cable-Haunt-Report/releases/download/2.4/report.pdf (Technical Description, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-19494?
- CVE-2019-19494 is a high-severity vulnerability in Compal 7284e, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2020-01-09.
- How severe is CVE-2019-19494?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2019-19494 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.