Answer in brief
CVE-2026-23087 records a Medium severity (CVSS 5.5) vulnerability in scsi: xen: scsiback: Fix potential memory leak in scsiback_remove(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. 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-2026-23087 records a Medium severity (CVSS 5.5) vulnerability in scsi: xen: scsiback: Fix potential memory leak in scsiback_remove(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. 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 5.5. 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), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d9d660f6e562a47b4065eeb7e538910b0471b988 <a8bb3ec8d85951a56af0a72d93ccbc2aee42eef9 || >=d9d660f6e562a47b4065eeb7e538910b0471b988 <427b0fb30ddec3bad05dcd73b00718f98c7026d2 || >=d9d660f6e562a47b4065eeb7e538910b0471b988 <4a975c72429b050c234405668b742cdecc11548e || >=d9d660f6e562a47b4065eeb7e538910b0471b988 <f86264ec0e2b102fcd49bf3e4f32fee669d482fc || >=d9d660f6e562a47b4065eeb7e538910b0471b988 <32e52b56056daf0f0881fd9254706acf25b4be97 || >=d9d660f6e562a47b4065eeb7e538910b0471b988 <24c441f0e24da175d7912095663f526ac480dc4f || >=d9d660f6e562a47b4065eeb7e538910b0471b988 <901a5f309daba412e2a30364d7ec1492fa11c32c | a8bb3ec8d85951a56af0a72d93ccbc2aee42eef9, 427b0fb30ddec3bad05dcd73b00718f98c7026d2, 4a975c72429b050c234405668b742cdecc11548e, f86264ec0e2b102fcd49bf3e4f32fee669d482fc, 32e52b56056daf0f0881fd9254706acf25b4be97, 24c441f0e24da175d7912095663f526ac480dc4f, 901a5f309daba412e2a30364d7ec1492fa11c32c |
| Linux/Linuxgeneric | 3.18 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
Published upstream
Feb 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
In the Linux kernel, the following vulnerability has been resolved: scsi: xen: scsiback: Fix potential memory leak in scsiback_remove() Memory allocated for struct vscsiblk_info in scsiback_probe() is not freed in scsiback_remove() leading to potential memory leaks on remove, as well as in the scsiback_probe() error paths. Fix that by freeing it in scsiback_remove().
Quoted source text, attributed separately from HOL analysis.
CVSS is 5.5. 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), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d9d660f6e562a47b4065eeb7e538910b0471b988 <a8bb3ec8d85951a56af0a72d93ccbc2aee42eef9 || >=d9d660f6e562a47b4065eeb7e538910b0471b988 <427b0fb30ddec3bad05dcd73b00718f98c7026d2 || >=d9d660f6e562a47b4065eeb7e538910b0471b988 <4a975c72429b050c234405668b742cdecc11548e || >=d9d660f6e562a47b4065eeb7e538910b0471b988 <f86264ec0e2b102fcd49bf3e4f32fee669d482fc || >=d9d660f6e562a47b4065eeb7e538910b0471b988 <32e52b56056daf0f0881fd9254706acf25b4be97 || >=d9d660f6e562a47b4065eeb7e538910b0471b988 <24c441f0e24da175d7912095663f526ac480dc4f || >=d9d660f6e562a47b4065eeb7e538910b0471b988 <901a5f309daba412e2a30364d7ec1492fa11c32c | a8bb3ec8d85951a56af0a72d93ccbc2aee42eef9, 427b0fb30ddec3bad05dcd73b00718f98c7026d2, 4a975c72429b050c234405668b742cdecc11548e, f86264ec0e2b102fcd49bf3e4f32fee669d482fc, 32e52b56056daf0f0881fd9254706acf25b4be97, 24c441f0e24da175d7912095663f526ac480dc4f, 901a5f309daba412e2a30364d7ec1492fa11c32c |
| Linux/Linuxgeneric | 3.18 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
Published upstream
Feb 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
In the Linux kernel, the following vulnerability has been resolved: scsi: xen: scsiback: Fix potential memory leak in scsiback_remove() Memory allocated for struct vscsiblk_info in scsiback_probe() is not freed in scsiback_remove() leading to potential memory leaks on remove, as well as in the scsiback_probe() error paths. Fix that by freeing it in scsiback_remove().
Quoted source text, attributed separately from HOL analysis.