CVE-2026-115484High· 7.6▾ TwilightA flaw was found in the iscsiuio component of open-iscsi. The DHCPv4 option parser incorrectly calculates the length of the options data, causing it to read beyond the allocated buffer into adjacent heap memory. An attacker on the same n…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.8 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 25.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.2%
Last analysed / modified upstream
0.2% → 0.2%
A flaw was found in the iscsiuio component of open-iscsi. The DHCPv4 option parser incorrectly calculates the length of the options data, causing it to read beyond the allocated buffer into adjacent heap memory. An attacker on the same network segment can send a crafted DHCP response to crash the daemon or corrupt its network configuration.
iscsi-initiator-utils (all versions)iscsi-initiator-utilsiscsi-initiator-utils (all versions)iscsi-initiator-utils (all versions)iscsi-initiator-utils (all versions)Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Restrict untrusted systems from the L2 broadcast domain where iscsiuio-managed interfaces operate. If IPv4 DHCP is not required for iSCSI boot, configure static IP addressing. Where DHCP must remain enabled, limit DHCP/BOOTP traffic so only trusted infrastructure can reach the affected host.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-115485Medium· 6.3Open-iscsi: open-iscsi: dhcpv6 vendor option strlen heap out-of-bounds read and 1-byte write in iscsiuio
CVE-2026-115486High· 7.1Open-iscsi: open-iscsi: ipv6 neighbor discovery missing option length validation in iscsiuio allows arp table poisoning
CVE-2026-92824Medium· 6.2Libmodulemd: libmodulemd: out-of-bounds read when emitting rpm-map artifacts
CVE-2026-114038Medium· 5.1Device-mapper-multipath: device-mapper-multipath: information disclosure via malformed format string
CVE-2021-47996High· 7.5Rejected reason: This CVE ID has been rejected as a duplicate.
CVE-2026-116124High· 7.8libgsf: libgsf: Arbitrary code execution via heap-based buffer overflow in OLE2 parser (CVE-2026-116124)