Answer in brief
CVE-2025-38639 records a High severity (CVSS 7.1) vulnerability in netfilter: xt_nfacct: don't assume acct name is null-terminated. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <66d41268ede1e1b6e71ba28be923397ff0b2b9c3 || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <e021a1eee196887536a6630c5492c23a4c78d452 || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <b10cfa2de13d28ddd03210eb234422b7ec92725a || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <e18939176e657a3a20bfbed357b8c55a9f82aba3 || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <58004aa21e79addaf41667bfe65e93ec51653f18 || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <7c1ae471da69c09242834e956218ea6a42dd405a || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <58007fc7b94fb2702000045ff401eb7f5bde7828 || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <df13c9c6ce1d55c31d1bd49db65a7fbbd86aab13 || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <bf58e667af7d96c8eb9411f926a0a0955f41ce21 | 66d41268ede1e1b6e71ba28be923397ff0b2b9c3, e021a1eee196887536a6630c5492c23a4c78d452, b10cfa2de13d28ddd03210eb234422b7ec92725a, e18939176e657a3a20bfbed357b8c55a9f82aba3, 58004aa21e79addaf41667bfe65e93ec51653f18, 7c1ae471da69c09242834e956218ea6a42dd405a, 58007fc7b94fb2702000045ff401eb7f5bde7828, df13c9c6ce1d55c31d1bd49db65a7fbbd86aab13, bf58e667af7d96c8eb9411f926a0a0955f41ce21 |
| Linux/Linuxgeneric | 3.3 | Not reported |
Published upstream
Aug 22, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_nfacct: don't assume acct name is null-terminated BUG: KASAN: slab-out-of-bounds in .. lib/vsprintf.c:721 Read of size 1 at addr ffff88801eac95c8 by task syz-executor183/5851 [..] string+0x231/0x2b0 lib/vsprintf.c:721 vsnprintf+0x739/0xf00 lib/vsprintf.c:2874 [..] nfacct_mt_checkentry+0xd2/0xe0 net/netfilter/xt_nfacct.c:41 xt_check_match+0x3d1/0xab0 net/netfilter/x_tables.c:523 nfnl_acct_find_get() handles non-null input, but the error printk relied on its presence.
Quoted source text, attributed separately from HOL analysis.