Answer in brief
CVE-2026-34961 records a Medium severity (CVSS 6.2) vulnerability in barebox ext4 Extent Parsing Out-of-Bounds Read. The current sources do not mark it as known exploited. The current feed maps barebox/barebox (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 6.2. 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 barebox/barebox (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| barebox/bareboxgeneric | >=0 <2026.04.0 | 2026.04.0 |
Published upstream
May 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 18, 2026
barebox prior to version 2026.04.0 contains out-of-bounds read vulnerabilities in ext4 extent parsing due to missing validation of the eh_entries field against buffer capacity in fs/ext4/ext4_common.c. Attackers can supply a malicious ext4 filesystem image via USB, SD card, or network boot to trigger heap out-of-bounds reads during boot-time filesystem parsing, potentially redirecting reads to arbitrary disk offsets.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-34961 records a Medium severity (CVSS 6.2) vulnerability in barebox ext4 Extent Parsing Out-of-Bounds Read. The current sources do not mark it as known exploited. The current feed maps barebox/barebox (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 6.2. 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 barebox/barebox (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| barebox/bareboxgeneric | >=0 <2026.04.0 | 2026.04.0 |
Published upstream
May 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 18, 2026
barebox prior to version 2026.04.0 contains out-of-bounds read vulnerabilities in ext4 extent parsing due to missing validation of the eh_entries field against buffer capacity in fs/ext4/ext4_common.c. Attackers can supply a malicious ext4 filesystem image via USB, SD card, or network boot to trigger heap out-of-bounds reads during boot-time filesystem parsing, potentially redirecting reads to arbitrary disk offsets.
Quoted source text, attributed separately from HOL analysis.