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High 7.8Published Sep 19, 2025

CVE-2025-39849In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result() If the ssid->datalen is more than IEEE80211_MAX_SSID_LEN (32) i…

Updated under an hour ago ()

Does this affect you?

It affects linux_kernel and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result() If the ssid->datalen is more than IEEE80211_MAX_SSID_LEN (32) it would lead to memory corruption so add some bounds checking.

CVSS
7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-787
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Not given
NVD analysis
Modified
Record last updated
Oct 19, 2026
First seen by InfoSec Signals
Oct 19, 2026

Affected products

Affected products
linux linux_kernel
linux:linux_kernel
from 6.1.16 before 6.1.151; from 6.2.3 before 6.6.105; from 6.7 before 6.12.46; from 6.13 before 6.16.6; 6.17; 6.17; 6.17; 6.17
NVD
debian debian_linux
debian:debian_linux
11.0
NVD

References

  • patch
  • patch
  • patch
  • patch
  • patch
  • mailing-list, third-party-advisory

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.

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