wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()
Summary
| CVE | CVE-2025-39849 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2025-09-19 16:15:43 UTC |
| Updated | 2026-05-12 13:17:16 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v3.1 7.8 HIGH from [email protected]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Problem Types: CWE-787
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected dd43f8f90206054e7da7593de0a334fb2cd0ea88 8e751d46336205abc259ed3990e850a9843fb649 git | Not specified |
| CNA | Linux | Linux | affected c38c701851011c94ce3be1ccb3593678d2933fd8 e472f59d02c82b511bc43a3f96d62ed08bf4537f git | Not specified |
| CNA | Linux | Linux | affected c38c701851011c94ce3be1ccb3593678d2933fd8 31229145e6ba5ace3e9391113376fa05b7831ede git | Not specified |
| CNA | Linux | Linux | affected c38c701851011c94ce3be1ccb3593678d2933fd8 5cb7cab7adf9b1e6a99e2081b0e30e9e59d07523 git | Not specified |
| CNA | Linux | Linux | affected c38c701851011c94ce3be1ccb3593678d2933fd8 62b635dcd69c4fde7ce1de4992d71420a37e51e3 git | Not specified |
| CNA | Linux | Linux | affected bf3c348c5fdcf00a7eeed04a1b83e454d2dca2e5 git | Not specified |
| CNA | Linux | Linux | affected 6.3 | Not specified |
| CNA | Linux | Linux | unaffected 6.3 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.151 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.105 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.46 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.16.6 6.16.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.17 * original_commit_for_fix | Not specified |
| ADP | Siemens | SIMATIC CN 4100 | affected V5.0 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/8e751d46336205abc259ed3990e850a9843fb649 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| lists.debian.org/debian-lts-announce/2025/10/msg00008.html | af854a3a-2127-422b-91ae-364da2661108 | lists.debian.org | Mailing List, Third Party Advisory |
| git.kernel.org/stable/c/62b635dcd69c4fde7ce1de4992d71420a37e51e3 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/31229145e6ba5ace3e9391113376fa05b7831ede | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| cert-portal.siemens.com/productcert/html/ssa-032379.html | 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e | cert-portal.siemens.com | |
| git.kernel.org/stable/c/5cb7cab7adf9b1e6a99e2081b0e30e9e59d07523 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/e472f59d02c82b511bc43a3f96d62ed08bf4537f | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.