CVE-2020-28374
mediumpriority · track · 34EPSS 0.066 · 94 %ileEURUUSEPSS · scored 2026-10-27
In drivers/target/target_core_xcopy.c in the Linux kernel before 5.10.7, insufficient identifier checking in the LIO SCSI target code can be used by remote attackers to read or write files via directory traversal in an XCOPY request, aka CID-2896c93811e3. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. The attacker gains control over file access because I/O operations are proxied via an attacker-selected backstore.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.5–8.1
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (25)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (99)
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2021/01/13/2cnnvd
- http://www.openwall.com/lists/oss-security/2021/01/13/5cnnvd
- https://access.redhat.com/security/cve/cve-2020-28374cnnvd
- https://bugzilla.suse.com/attachment.cgi?id=844938cnnvd
- https://bugzilla.suse.com/show_bug.cgi?id=1178372cnnvd
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.7cnnvd
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2896c93811e39d63a4d9b63ccf12a8fbc226e5e4cnnvd
- https://github.com/torvalds/linux/commit/2896c93811e39d63a4d9b63ccf12a8fbc226e5e4cnnvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan