CVE-2011-1093

NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 3%CVSS: —Exploit: NoneExposed: 0

A fix is available — apply it.

The dccp_rcv_state_process function in net/dccp/input.c in the Datagram Congestion Control Protocol (DCCP) implementation in the Linux kernel before 2.6.38 does not properly handle packets for a CLOSED endpoint, which allows remote attackers to cause a denial of service (NULL pointer dereference and OOPS) by sending a DCCP-Close packet followed by a DCCP-Reset packet.

CVSS v3
—
EG Score
0.0(none)
EG Risk
0
EPSS
87.9%
KEV
Not listed

Published

July 18, 2011

Last Modified

April 29, 2026

References (16)

Vendor Advisories for CVE-2011-1093(3)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(12)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-2.6.24-29-lpiacompat (2.6.24-29.93) @ hardy2026-05-29ubuntu
ubuntulinux-image-2.6.35-903-omap4 (2.6.35-903.24) @ maverick2026-05-29ubuntu
ubuntulinux-image-2.6.35-30-powerpc (2.6.35-30.54) @ maverick2026-05-29ubuntu
ubuntulinux-image-2.6.38-12-generic (2.6.38-12.51~lucid1) @ lucid2026-05-29ubuntu
ubuntulinux-image-2.6.32-32-sparc64 (2.6.32-32.62) @ lucid2026-05-29ubuntu
ubuntulinux-image-2.6.35-30-virtual (2.6.35-30.56~lucid1) @ lucid2026-05-29ubuntu
ubuntulinux-image-2.6.32-416-dove (2.6.32-416.33) @ maverick2026-05-29ubuntu
ubuntulinux-image-2.6.31-610-imx51 (2.6.31-610.28) @ lucid2026-05-29ubuntu
ubuntulinux-image-2.6.38-10-generic (2.6.38-10.46) @ natty2026-05-29ubuntu
redhatkernel-0:2.6.18-238.12.1.el52011-05-31redhat
redhatkernel-0:2.6.32-71.29.1.el62011-05-10redhat
redhatkernel-rt-0:2.6.33.9-rt31.64.el5rt2011-05-10redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(9)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 11× in last 7d / 38× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 104 total refreshes for this CVE.

  1. 2026-07-23 00:40 UTCEG score recompute
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  3. 2026-07-22 21:47 UTCEG score recompute
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  57. 2026-05-29 07:31 UTCVendor advisory
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Frequently asked(4)

What is CVE-2011-1093?
CVE-2011-1093 is a none vulnerability published on July 18, 2011. The dccprcvstate_process function in net/dccp/input.c in the Datagram Congestion Control Protocol (DCCP) implementation in the Linux kernel before 2.6.38 does not properly handle packets for a CLOSED endpoint, which allows remote attackers to cause a denial of service (NULL pointer dereference and…
When was CVE-2011-1093 disclosed?
CVE-2011-1093 was first published in the National Vulnerability Database on July 18, 2011, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2011-1093 actively exploited?
CVE-2011-1093 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 87.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2011-1093?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-1093, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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