CVE-2026-34253
Buffer underflow in ogg123 (vorbis-tools 1.4.3) may crash or allow code execution.
Is CVE-2026-34253 being exploited?
Not confirmed. CVE-2026-34253 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 0.52% probability of exploitation in the next 30 days.
How severe is CVE-2026-34253?
CVE-2026-34253 is rated High with a CVSS score of 8.2. 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-2026-34253?
Not known from our data. No patch reference has been recorded for CVE-2026-34253, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-34253 affect?
CVE-2026-34253 affects vorbis-tools 1.4.3, ogg123. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-34253?
Upgrade to patched release when available; monitor advisories
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote control input can trigger a stack underflow, potentially enabling code execution.
Patch when possible