What is CVE-2018-15555?

CVE-2018-15555 is a critical-severity vulnerability in Actiontec Web6000q, classified under Improper Synchronization. CVSS score: 9.8/10. Published 2019-06-28.

How severe is CVE-2018-15555?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2018-15555 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Actiontec Web6000q

CVE-2018-15555

On Telus Actiontec WEB6000Q v1.1.02.22 devices, an attacker can login with root level access with the user "root" and password "admin" by using the enabled onboard UART headers.

EPSS: 0.030 (85.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Actiontec Web6000q
Actiontec Web6000q_firmware — versions 1.1.02.22
N/a — versions n/a

Weakness classification (CWE)

CWE-662 — Improper Synchronization

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

cve@mitre.org (mailing-list, x_refsource_FULLDISC, Mailing List, Third Party Advisory)
cve@mitre.org (VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-15555?: CVE-2018-15555 is a critical-severity vulnerability in Actiontec Web6000q, classified under Improper Synchronization. CVSS score: 9.8/10. Published 2019-06-28.
How severe is CVE-2018-15555?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2018-15555 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.