CVE-2025-38639: debian debian_linux
Vulnerability summary
CVE-2025-38639 is a high (CVSS 7.1) vulnerability in debian debian_linux. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 52 · Related 48Timeline
- 22-08-2025PublishedVulnerability first disclosed.
- 15-10-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.18%
Chance of exploitation in the next 30 days
Percentile
7%
Versus all other CVEs
30-day change
0.00 pp
From 0.18% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu147 products
- linuxAll versions (No fix recorded) | < 5.15.0-163.173 | < 6.8.0-100.100
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1097.104 | < 6.8.0-1046.49
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linux< 6.1.148-1 | < 6.12.43-1 | < 6.16.3-1
- debian_linuxEOL11.0
Linux2 products
- linux≥ ceb98d03eac5704820f2ac1f370c9ff385e3a9f5, < 66d41268ede1e1b6e71ba28be923397ff0b2b9c3 | ≥ ceb98d03eac5704820f2ac1f370c9ff385e3a9f5, < e021a1eee196887536a6630c5492c23a4c78d452 | ≥ ceb98d03eac5704820f2ac1f370c9ff385e3a9f5, < b10cfa2de13d28ddd03210eb234422b7ec92725a | ≥ ceb98d03eac5704820f2ac1f370c9ff385e3a9f5, < e18939176e657a3a20bfbed357b8c55a9f82aba3 | ≥ ceb98d03eac5704820f2ac1f370c9ff385e3a9f5, < 58004aa21e79addaf41667bfe65e93ec51653f18 | ≥ ceb98d03eac5704820f2ac1f370c9ff385e3a9f5, < 7c1ae471da69c09242834e956218ea6a42dd405a | ≥ ceb98d03eac5704820f2ac1f370c9ff385e3a9f5, < 58007fc7b94fb2702000045ff401eb7f5bde7828 | ≥ ceb98d03eac5704820f2ac1f370c9ff385e3a9f5, < df13c9c6ce1d55c31d1bd49db65a7fbbd86aab13 | ≥ ceb98d03eac5704820f2ac1f370c9ff385e3a9f5, < bf58e667af7d96c8eb9411f926a0a0955f41ce21 | 3.3
- linux_kernel≥ 3.3, < 5.4.297 | ≥ 5.5, < 5.10.241 | ≥ 5.11, < 5.15.190 | ≥ 5.16, < 6.1.148 | ≥ 6.2, < 6.6.102 | ≥ 6.7, < 6.12.42 | ≥ 6.13, < 6.15.10 | ≥ 6.16, < 6.16.1
3 vendors · 151 products
References
47 links- lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlThird Party Advisory
Show all 47 references
- lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlThird Party Advisory