Answer in brief
CVE-2025-39849 records a Unknown severity vulnerability in wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC CN 4100 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2025-39849 records a Unknown severity vulnerability in wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC CN 4100 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. 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), Siemens/SIMATIC CN 4100 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=dd43f8f90206054e7da7593de0a334fb2cd0ea88 <8e751d46336205abc259ed3990e850a9843fb649 || >=c38c701851011c94ce3be1ccb3593678d2933fd8 <e472f59d02c82b511bc43a3f96d62ed08bf4537f || >=c38c701851011c94ce3be1ccb3593678d2933fd8 <31229145e6ba5ace3e9391113376fa05b7831ede || >=c38c701851011c94ce3be1ccb3593678d2933fd8 <5cb7cab7adf9b1e6a99e2081b0e30e9e59d07523 || >=c38c701851011c94ce3be1ccb3593678d2933fd8 <62b635dcd69c4fde7ce1de4992d71420a37e51e3 || bf3c348c5fdcf00a7eeed04a1b83e454d2dca2e5 || >=6.1.16 <6.1.151 || >=6.2.3 <6.3 | 8e751d46336205abc259ed3990e850a9843fb649, e472f59d02c82b511bc43a3f96d62ed08bf4537f, 31229145e6ba5ace3e9391113376fa05b7831ede, 5cb7cab7adf9b1e6a99e2081b0e30e9e59d07523, 62b635dcd69c4fde7ce1de4992d71420a37e51e3, 6.1.151, 6.3 |
| Linux/Linuxgeneric | 6.3 | Not reported |
| Siemens/SIMATIC CN 4100generic | >=0 <V5.0 | V5.0 |
Published upstream
Sep 19, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 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: 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.
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. 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), Siemens/SIMATIC CN 4100 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=dd43f8f90206054e7da7593de0a334fb2cd0ea88 <8e751d46336205abc259ed3990e850a9843fb649 || >=c38c701851011c94ce3be1ccb3593678d2933fd8 <e472f59d02c82b511bc43a3f96d62ed08bf4537f || >=c38c701851011c94ce3be1ccb3593678d2933fd8 <31229145e6ba5ace3e9391113376fa05b7831ede || >=c38c701851011c94ce3be1ccb3593678d2933fd8 <5cb7cab7adf9b1e6a99e2081b0e30e9e59d07523 || >=c38c701851011c94ce3be1ccb3593678d2933fd8 <62b635dcd69c4fde7ce1de4992d71420a37e51e3 || bf3c348c5fdcf00a7eeed04a1b83e454d2dca2e5 || >=6.1.16 <6.1.151 || >=6.2.3 <6.3 | 8e751d46336205abc259ed3990e850a9843fb649, e472f59d02c82b511bc43a3f96d62ed08bf4537f, 31229145e6ba5ace3e9391113376fa05b7831ede, 5cb7cab7adf9b1e6a99e2081b0e30e9e59d07523, 62b635dcd69c4fde7ce1de4992d71420a37e51e3, 6.1.151, 6.3 |
| Linux/Linuxgeneric | 6.3 | Not reported |
| Siemens/SIMATIC CN 4100generic | >=0 <V5.0 | V5.0 |
Published upstream
Sep 19, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 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: 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.
Quoted source text, attributed separately from HOL analysis.