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[UPDATE] [high] Mozilla Firefox: Vulnerability allows code execution

highCVE-2026-14241
An attacker can exploit a vulnerability in Mozilla Firefox to cause a memory corruption or potentially execute arbitrary code.

CSIRTS triage

vendor: Mozillaproduct: FirefoxMemory corruptionRemote code execution
What
A vulnerability allows memory corruption or arbitrary code execution.
Who is affected
Attackers exploiting vulnerabilities in Mozilla Firefox.
Urgency
Remediation is high urgency due to the potential for severe impacts.
Action
Update Firefox to the latest version immediately.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity
high
Published
2026-07-02
Exploitation
Not in CISA KEV at last sync
Language
Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2153

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-14241coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Mozilla Firefox

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

More from CERT-Bund (BSI) Security Advisories