{"vulnerability": "CVE-2025-21993", "sightings": [{"uuid": "48864177-f1a3-4bbd-953a-231560389556", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2025-21993", "type": "seen", "source": "https://t.me/cvedetector/21872", "content": "{\n  \"Source\": \"CVE FEED\",\n  \"Title\": \"CVE-2025-21993 - IBM iSCSI IPv6 Subnet Mask Out-of-Bounds Vulnerability\", \n  \"Content\": \"CVE ID : CVE-2025-21993 \nPublished : April 2, 2025, 1:15 p.m. | 1\u00a0hour, 4\u00a0minutes ago \nDescription : In the Linux kernel, the following vulnerability has been resolved:  \n  \niscsi_ibft: Fix UBSAN shift-out-of-bounds warning in ibft_attr_show_nic()  \n  \nWhen performing an iSCSI boot using IPv6, iscsistart still reads the  \n/sys/firmware/ibft/ethernetX/subnet-mask entry. Since the IPv6 prefix  \nlength is 64, this causes the shift exponent to become negative,  \ntriggering a UBSAN warning. As the concept of a subnet mask does not  \napply to IPv6, the value is set to ~0 to suppress the warning message. \nSeverity: 0.0 | NA \nVisit the link for more details, such as CVSS details, affected products, timeline, and more...\",\n  \"Detection Date\": \"02 Apr 2025\",\n  \"Type\": \"Vulnerability\"\n}\n\ud83d\udd39 t.me/cvedetector \ud83d\udd39", "creation_timestamp": "2025-04-02T16:39:31.000000Z"}]}