CVE-2026-120456
L-SMASH through 2.14.5 contains a heap out-of-bounds write vulnerability in isom_read_hdlr() and isom_read_dref_entry() in core/read.c triggered by oversized box sizes. Attackers can supply crafted MP4 or MOV files declaring hdlr or url box sizes larger than remaining data, stall…
Read full description
Attention and evidence
Evidence confidence: Insufficient evidence
Hype components
Sources and documents
Score evolution
● Hype ● Reality
━ Hype Score (Perceived) ━ Reality threat priority. Definition changes are not new attacks.
Public exploit evidence
Public exploit entries / repo candidates
Evidence context and dated references
Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs. Published 6 days ago. Exploitation evidence usually takes weeks to show up: a low reality score can mean there is no data yet, not that the flaw is mild.
Evidence in context
- Confidence in exploitation evidence
- Insufficient evidence
- Priority basis
- Exploitation in attacks unconfirmed; CVSS 6.1; EPSS 0.2%
- Attention, last 30 days
- 0 distinct story titles; 0 press documents; 0 publisher domains.
- Technical potential
- local access, no prior privileges, user interaction.
- Observed activity
- No exploitation observation is recorded.
- Known scale
- Not quantified.
- Evidence confidence basis
- Insufficient evidence
Score evaluated: 2026-11-05 13:59:56.876805+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z