Out-of-bounds Read Affecting wicked-service package, versions <0.6.79-150700.3.8.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-SLES157-WICKEDSERVICE-19528396
- published4 Sept 2026
- disclosed27 Aug 2026
Introduced: 27 Aug 2026
NewCVE-2026-71402 (opens in a new tab)How to fix?
Upgrade SLES:15.7 wicked-service to version 0.6.79-150700.3.8.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream wicked-service package and not the wicked-service package as distributed by SLES.
See How to fix? for SLES:15.7 relevant fixed versions and status.
An out-of-bounds read was found in the DHCPv4 packet capture code of wicked. ni_capture_inspect_udp_header() in src/capture.c reports the IP total length as the payload length instead of the length of the remaining UDP payload. Consequently, the DHCP option walker in the DHCPv4 client (wickedd-dhcp4) reads up to ihl + 8 bytes — at most 68 bytes — past the end of the 1500-byte packet receive buffer. An unauthenticated attacker on the same network who sends a crafted DHCP/UDP packet can make the client parse adjacent heap memory as DHCP options, so that heap contents such as allocator metadata or pointer values can be interpreted into lease fields. The over-read is bounded to 68 bytes; no memory write, no attacker control over the adjacent bytes and no remote exfiltration primitive has been demonstrated. This issue affects wicked up to and including version 0.6.80.