CVE-2026-88833 (GCVE-0-2026-88833)
Vulnerability from cvelistv5
Published
2026-10-13 16:56
Modified
2026-10-16 22:22
CWE
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
Summary
A flaw was found in BusyBox's udhcpc DHCP client. When processing raw DHCP packets, the client replaces the validated packet length with an attacker-controlled value from the IP header without re-validating the minimum size. This leads to an integer underflow when subtracting header sizes, causing a subsequent memory copy with a massively oversized length. An attacker on the same network segment can send a specially crafted packet to crash the DHCP client, resulting in denial of service and loss of network connectivity.
References
Impacted products
Vendor Product Version
Red Hat Red Hat Hardened Images     cpe:/a:redhat:hummingbird:1
Create a notification for this product.
Show details on NVD website


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