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[NEW] [medium] Mozilla Firefox for iOS: Vulnerability allows display of false information

mediumCVE-2026-13356
A remote, anonymous attacker can exploit a vulnerability in Mozilla Firefox to display false information.

CSIRTS triage

vendor: Mozillaproduct: Firefox for iOSOther
What
A remote, anonymous attacker can exploit a vulnerability in Mozilla Firefox to display false information.
Who is affected
Users of Mozilla Firefox for iOS are affected.
Urgency
Remediation is medium urgency as the severity is medium and exploitation is possible.
Action
Update to the latest version of Firefox for iOS.

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
medium
Published
2026-07-07
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-2026-2214

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-2026-13356coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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