CVE-2026-12057
RCE via PDF JavaScript in sandbox; remote scripts can execute code
Is CVE-2026-12057 being exploited?
Not confirmed. CVE-2026-12057 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.13% probability of exploitation in the next 30 days.
How severe is CVE-2026-12057?
CVE-2026-12057 is rated High with a CVSS score of 8.6. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-12057?
Yes. A fix has been recorded for CVE-2026-12057. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What should I do about CVE-2026-12057?
Patch when released; restrict/disable JavaScript in PDFs if feasible
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Arbitrary code execution via remote-loaded scripts from PDF JS bypassing sandbox.
Patch when possible
- affectedbefore 2026-06-15
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.