VDB
DEBIAN-CVE-2025-39839
DEBIAN-CVE-2025-39839
PUBLISHED
CVSS 7.099999904632568 HIGH
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.
Risk Scores
CVSS v3.1
7.099999904632568
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | linux | 6.1.82-1, 6.1.128-1, 6.1.129-1 |
| Debian:13 | linux | 6.12.38-1, 6.12.41-1, 6.12.43-1 |
| Debian:14 | linux | 6.15.1-1, 6.12.43-1, 6.12.43-1~bpo12+1 |
| Debian:11 | linux | 0, 5.10.103-1, 5.10.103-1~bpo10+1 |
| Debian:11 | linux-6.1 | 0, 6.1.106-3~deb11u1, 6.1.106-3~deb11u2 |
Timeline
- Sep 19, 2025 CVE Published
- Apr 28, 2026 CVE Updated