CVE-2011-0521: n/a vulnerability

CVE-2011-0521: The dvb_ca_ioctl function in drivers/media/dvb/ttpci/av7110_ca.c in the Linux kernel before 2.6.38-rc2 does...

The dvb_ca_ioctl function in drivers/media/dvb/ttpci/av7110_ca.c in the Linux kernel before 2.6.38-rc2 does not check the sign of a certain integer field, which allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact via a negative value.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 21:58 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2011-0521 is an old Linux kernel bug in a DVB driver. A local user could supply a negative value that leads to memory corruption, causing a crash or possibly other impact. The source bundle does not show remote attack exposure or confirmed exploitation. Most likely exposure is legacy Linux systems running kernels before 2.6.38-rc2 where the av7110 DVB/ttpci driver is present and accessible to local users. The provided affected-product metadata is incomplete, so distribution and appliance exposure must be confirmed from vendor advisories. Treat this as a legacy local-risk issue. It is not an internet-facing emergency based on the provided evidence, but it matters where old kernels or vendor appliances remain in use with untrusted local access. Mitigation focus: Upgrade affected Linux kernels to a fixed vendor-supported release.; Check vendor advisories for backported fixes in distribution kernels.; Restrict local shell access to trusted users on legacy systems..

Prepared: Jun 28, 2026, 01:17 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Feb 2, 2011, 22:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
kernel-av7110ca-privilege-escalation(64988)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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