Answer in brief
CVE-2025-62231 records a High severity (CVSS 7.3) vulnerability in Xorg: xmayland: value overflow in xkbsetcompatmap(). The current sources do not mark it as known exploited. The current feed maps X.Org/Xwayland (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2025-62231 records a High severity (CVSS 7.3) vulnerability in Xorg: xmayland: value overflow in xkbsetcompatmap(). The current sources do not mark it as known exploited. The current feed maps X.Org/Xwayland (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps X.Org/Xwayland (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| X.Org/Xwaylandgeneric | >=0 <24.1.9 | 24.1.9 |
Published upstream
Oct 30, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 29, 2026
A flaw was identified in the X.Org X server’s X Keyboard (Xkb) extension where improper bounds checking in the XkbSetCompatMap() function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the value calculation may overflow, leading to memory corruption or a crash.
Quoted source text, attributed separately from HOL analysis.
CVSS is 7.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps X.Org/Xwayland (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| X.Org/Xwaylandgeneric | >=0 <24.1.9 | 24.1.9 |
Published upstream
Oct 30, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 29, 2026
A flaw was identified in the X.Org X server’s X Keyboard (Xkb) extension where improper bounds checking in the XkbSetCompatMap() function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the value calculation may overflow, leading to memory corruption or a crash.
Quoted source text, attributed separately from HOL analysis.