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CVE-2010-4077

Status: ModifiedLow (1.9)—Exploit
Severity1.9Low · CVSS 2.0
Exploitation probability1.04 %higher than 63% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitAvailablePublished on Exploit-DB

The ntty_ioctl_tiocgicount function in drivers/char/nozomi.c in the Linux kernel 2.6.36.1 and earlier does not properly initialize a certain structure member, which allows local users to obtain potentially sensitive information from kernel stack memory via a TIOCGICOUNT ioctl call.

CVSS

Base score
1.9
Version
2.0
Vector
AV:L/AC:M/Au:N/C:P/I:N/A:N

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
1.04 %
Percentile among all scored CVEs
63
Score date
10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Affected technologies (1)

Linux — Linux Kernel

CWEs

References

Show 24 references

Raw JSON (NVD)

Show
{
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      "value": "The ntty_ioctl_tiocgicount function in drivers/char/nozomi.c in the Linux kernel 2.6.36.1 and earlier does not properly initialize a certain structure member, which allows local users to obtain potentially sensitive information from kernel stack memory via a TIOCGICOUNT ioctl call."
    },
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      "lang": "es",
      "value": "La función ntty_ioctl_tiocgicount de drivers/char/nozomi.c del kernel de Linux en versiones anteriores a la 2.6.36.1 y anteriores no inicializa apropiadamente un miembro de una determinada estructura, lo que permite a usuarios locales obtener información potencialmente confidencial de la memoria de la pila del kernel a través de una llamada ioctl TIOCGICOUNT."
    }
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  "lastModified": "2026-06-16T23:24:06.003",
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}