Is CVE-2011-2497 in the CISA KEV catalog?

No. CVE-2011-2497 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2011-2497?

CVE-2011-2497 has a CVSS v2 base score of 8.3 (HIGH).

What is the EPSS score for CVE-2011-2497?

CVE-2011-2497 has an EPSS score of 1.97% (78th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2011-2497?

Upgrade linux kernel to 3.0 or later.

CVE & CISA-KEV Catalog

CVE-2011-2497

HIGHEPSS 78th pctl

8.3

CVSS v2

NVD

Description

Integer underflow in the l2cap_config_req function in net/bluetooth/l2cap_core.c in the Linux kernel before 3.0 allows remote attackers to cause a denial of service (heap memory corruption) or possibly have unspecified other impact via a small command-size value within the command header of a Logical Link Control and Adaptation Protocol (L2CAP) configuration request, leading to a buffer overflow.

CWE-191

How to fix

Remediation Available

linux kernelNVD

Affected:< 3.0Fixed in:3.0CVE-2011-2497derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

1.97%probability of exploitation in 30 days

78thpercentile

Elevated risk: more likely to be exploited than 78% of all known CVEs.

References

Patch5

Third-Party Advisory1

securityfocus.com

Other references3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.