CVE-2026-122054
Converting crafted BIG-HKSCS input to UCS-4 or the internal wide character encoding, for example with iconv, in the GNU C Library version 2.18 through 2.31 may result in the converter making no progress, causing the calling application to hang.
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 2 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 5.9; EPSS 0.4%
- Attention, last 30 days
- 0 distinct story titles; 0 press documents; 0 publisher domains.
- Technical potential
- network access, no prior privileges, no user interaction, additional attack conditions.
- 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