CVE-2026-121818

HIGH
MEDIUM Priority: 0.01 BB Relevance: 42/100
Published: 2026-11-04 Modified: 2026-11-04 First seen: 2026-11-04 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
AT: None
VC: High
VI: High
VA: High

Description

Herowatch Mini developed by About Time Technologies has a system signing vulnerability. Authenticated local attackers can exploit a publicly available test key to sign malicious programs, allowing them to elevate privileges and execute arbitrary code.

References & Advisories (2)

Bug Bounty Relevance

42 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

8.5 / 10.0 v4.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.13%
Raw Score 0.001290
Percentile 2.6%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00129
2026-11-12
0.00129
2026-11-10
0.00129
2026-11-09
0.00129
2026-11-08
0.00129
2026-11-07
0.00129
2026-11-06
0.00129
2026-11-05
0.00129
2026-11-04
0.00129

Intelligence Sources

mitre ref →
nvd ref →