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CVE-2026-125361

7.2 highEPSS 0.1%

High (7.2) in tencent browserskill. EPSS 0.1% estimated probability of exploitation activity in the next 30 days.

On this page
Tencent BrowserSkill through 0.4.2 contains a missing authentication vulnerability that allows local attackers to impersonate the bsk daemon because remoteSocket() connects to the loopback WebSocket without credentials or peer verification. Attackers who bind the daemon port before it starts or after it exits receive the extension's full tool surface, including evaluate, to run JavaScript through CDP in logged-in browser tabs.

Severity

CVSS 4.0

7.2 high
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

6.3 medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
EPSS
0.1% estimated probability of exploitation activity in the next 30 days; 2nd percentile. Scored 2026-11-10. A forecast for this CVE across the internet, not for your own systems.
CWE
CWE-923 Improper Restriction of Communication Channel to Intended Endpoints
Published
Assigned by
VulnCheck (CNA)
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Affected

Versions

From the CNA's record in the CVE List.

ProductAffected
Tencent BrowserSkillthrough 0.4.2

Attack patterns (CAPEC)

  • CAPEC-161 Infrastructure Manipulation Severity: High
  • CAPEC-481 Contradictory Destinations in Traffic Routing Schemes Likelihood: Medium · Severity: High
  • CAPEC-501 Android Activity Hijack Severity: Medium
  • CAPEC-697 DHCP Spoofing Likelihood: Low · Severity: High

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.

References

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