CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 8.8. It affects Linux.
CVE
CVE-2025-39839
Severity
HIGH
CVSS
8.8
EPSS
0.24%
Linux
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: batman-adv: fix OOB read/write in network-coding decode batadv_nc_skb_decode_packet() trusts coded_len and checks only against skb->len. XOR starts at sizeof(struct batadv_unicast_packet), reducing payload headroom, and the source skb length is not verified, allowing an out-of-bounds read and a small out-of-bounds write. Validate that coded_len fits within the payload area of both destination and source sk_buffs before XORing.
Related CVEs
Other vulnerabilities affecting the same vendor(s)