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 net…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.8 · likelihood 0 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
Last analysed / modified upstream
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.
open-iscsi: open-iscsi: DHCPv4 option parser heap out-of-bounds read in iscsiuio parse_msg — rated Moderate by Red Hat. Released 2026-10-20, updated 2026-10-23.
Affected:
No fix planned:
Not affected:
Affected
Workarounds / mitigations:
Connected by shared product, vendor, weakness, or advisory.
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