CVE-2026-90141ipvs: fix integer overflow in ftp helper port/address parsing
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: ipvs: fix integer overflow in ftp helper port/address parsing ip_vs_ftp_get_addrport() accumulates decimal digits into a __u16 (hport) and into unsigned char (p[]) without checking for overflow. A crafted FTP PASV/EPSV response with an over-long port or address octet wraps the value, so the helper configures the data connection with a truncated port/address. The netfilter conntrack FTP helper had the same defect, fixed in commit 2b413fc689ba ("netfilter: nf_conntrack_ftp: avoid u16 overflows"). Apply the equivalent fix here: widen the port accumulator to u32 and reject values above 65535, and reject address octets above 255.
- CVSS
- 7.3 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 18, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before d02de9a7a7e2484da0cf37e50614840623b98a62; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before fc1493c905d7e0bc8830c1d83915cb7831daf1a1; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 50cb9b7263a2ed01f7d2f97818a800c2ee05f661; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before deaa88fa010ba0dfc554d09e006ddd1ce9945c82; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 builds before 00bcc6d679262ea42688fba1d7819ea6e56f12ef; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 4aed450adaee3a021db27be94c61fe025b0d05ff; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before b1908bff0faaa94d55be72da65879cad632e8236; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before e625a9477d12baaff4025c5f9989184a907ea8fc | CNA record |
References
- https://git.kernel.org/stable/c/d02de9a7a7e2484da0cf37e50614840623b98a62
- https://git.kernel.org/stable/c/fc1493c905d7e0bc8830c1d83915cb7831daf1a1
- https://git.kernel.org/stable/c/50cb9b7263a2ed01f7d2f97818a800c2ee05f661
- https://git.kernel.org/stable/c/deaa88fa010ba0dfc554d09e006ddd1ce9945c82
- https://git.kernel.org/stable/c/00bcc6d679262ea42688fba1d7819ea6e56f12ef
- https://git.kernel.org/stable/c/4aed450adaee3a021db27be94c61fe025b0d05ff
- https://git.kernel.org/stable/c/b1908bff0faaa94d55be72da65879cad632e8236
- https://git.kernel.org/stable/c/e625a9477d12baaff4025c5f9989184a907ea8fc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.