Answer in brief
CVE-2021-47478 records a Critical severity (CVSS 9.1) vulnerability in isofs: Fix out of bound access for corrupted isofs image. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (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-2021-47478 records a Critical severity (CVSS 9.1) vulnerability in isofs: Fix out of bound access for corrupted isofs image. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (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 9.1. 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 Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <156ce5bb6cc43a80a743810199defb1dc3f55b7f || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9ec33a9b8790c212cc926a88c5e2105f97f3f57e || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <afbd40f425227e661d991757e11cc4db024e761f || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b0ddff8d68f2e43857a84dce54c3deab181c8ae1 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6e80e9314f8bb52d9eabe1907698718ff01120f5 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <86d4aedcbc69c0f84551fb70f953c24e396de2d7 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b2fa1f52d22c5455217b294629346ad23a744945 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e7fb722586a2936b37bdff096c095c30ca06404d || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e96a1866b40570b5950cda8602c2819189c62a48 | 156ce5bb6cc43a80a743810199defb1dc3f55b7f, 9ec33a9b8790c212cc926a88c5e2105f97f3f57e, afbd40f425227e661d991757e11cc4db024e761f, b0ddff8d68f2e43857a84dce54c3deab181c8ae1, 6e80e9314f8bb52d9eabe1907698718ff01120f5, 86d4aedcbc69c0f84551fb70f953c24e396de2d7, b2fa1f52d22c5455217b294629346ad23a744945, e7fb722586a2936b37bdff096c095c30ca06404d, e96a1866b40570b5950cda8602c2819189c62a48 |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
Published upstream
May 22, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: isofs: Fix out of bound access for corrupted isofs image When isofs image is suitably corrupted isofs_read_inode() can read data beyond the end of buffer. Sanity-check the directory entry length before using it.
Quoted source text, attributed separately from HOL analysis.
CVSS is 9.1. 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 Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <156ce5bb6cc43a80a743810199defb1dc3f55b7f || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9ec33a9b8790c212cc926a88c5e2105f97f3f57e || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <afbd40f425227e661d991757e11cc4db024e761f || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b0ddff8d68f2e43857a84dce54c3deab181c8ae1 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6e80e9314f8bb52d9eabe1907698718ff01120f5 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <86d4aedcbc69c0f84551fb70f953c24e396de2d7 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b2fa1f52d22c5455217b294629346ad23a744945 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e7fb722586a2936b37bdff096c095c30ca06404d || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e96a1866b40570b5950cda8602c2819189c62a48 | 156ce5bb6cc43a80a743810199defb1dc3f55b7f, 9ec33a9b8790c212cc926a88c5e2105f97f3f57e, afbd40f425227e661d991757e11cc4db024e761f, b0ddff8d68f2e43857a84dce54c3deab181c8ae1, 6e80e9314f8bb52d9eabe1907698718ff01120f5, 86d4aedcbc69c0f84551fb70f953c24e396de2d7, b2fa1f52d22c5455217b294629346ad23a744945, e7fb722586a2936b37bdff096c095c30ca06404d, e96a1866b40570b5950cda8602c2819189c62a48 |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
Published upstream
May 22, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: isofs: Fix out of bound access for corrupted isofs image When isofs image is suitably corrupted isofs_read_inode() can read data beyond the end of buffer. Sanity-check the directory entry length before using it.
Quoted source text, attributed separately from HOL analysis.