CVE-2011-4087

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 3%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

The br_parse_ip_options function in net/bridge/br_netfilter.c in the Linux kernel before 2.6.39 does not properly initialize a certain data structure, which allows remote attackers to cause a denial of service by leveraging connectivity to a network interface that uses an Ethernet bridge device.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
83.9%
KEV
Not listed

Published

June 8, 2013

Last Modified

April 29, 2026

Advisory Details (2)

Auto-updated Apr 30, 2026
No patch confirmed yet.
generic

bridge: reset IPCB in br_parse_ip_options · torvalds/linux@f8e9881 · GitHub

https://github.com/torvalds/linux/commit/f8e9881c2aef1e982e5abc25c046820cd0b7cf64
generic

oss-security - Re: CVE Request: Multiple remote denial of service in Linux bridge networking code 2.6.37-3.0

http://www.openwall.com/lists/oss-security/2011/10/28/14

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-3.0.0-13-generic (3.0.0-13.22~lucid1) @ lucid2026-05-28ubuntu
ubuntulinux-image-2.6.38-1209-omap4 (2.6.38-1209.18) @ natty2026-05-28ubuntu
ubuntulinux-image-2.6.38-12-generic (2.6.38-12.51~lucid1) @ lucid2026-05-28ubuntu
ubuntulinux-image-2.6.38-11-server (2.6.38-11.48) @ natty2026-05-28ubuntu

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.

All Vendor Advisories

(4)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 10× in last 7d / 42× 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.

  1. 2026-07-06 16:23 UTCEPSS rescore
  2. 2026-07-06 02:19 UTCEPSS rescore
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  9. 2026-06-30 23:19 UTCEPSS rescore
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  11. 2026-06-29 14:02 UTCEPSS rescore
  12. 2026-06-28 14:03 UTCEPSS rescore
  13. 2026-06-28 04:53 UTCEPSS rescore
  14. 2026-06-28 04:52 UTCEPSS rescore
  15. 2026-06-27 03:05 UTCEPSS rescore
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  17. 2026-06-25 13:46 UTCEPSS rescore
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  20. 2026-06-22 14:22 UTCEPSS rescore
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  24. 2026-06-19 19:22 UTCEPSS rescore
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  1. 2026-06-18 17:49 UTCEPSS rescore
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  3. 2026-06-17 17:49 UTCEPSS rescore
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  5. 2026-06-17 17:49 UTCEPSS rescore
  6. 2026-06-16 17:49 UTCEPSS rescore
  7. 2026-06-15 17:44 UTCEPSS rescore
  8. 2026-06-14 23:14 UTCEPSS rescore
  9. 2026-06-14 23:14 UTCEPSS rescore
  10. 2026-06-13 22:57 UTCEPSS rescore
  11. 2026-06-13 22:57 UTCEPSS rescore
  12. 2026-06-12 23:08 UTCEPSS rescore
  13. 2026-06-11 13:56 UTCEPSS rescore
  14. 2026-06-10 22:14 UTCEPSS rescore
  15. 2026-06-10 13:17 UTCEPSS rescore
  16. 2026-06-08 14:14 UTCEPSS rescore
  17. 2026-06-08 14:14 UTCEPSS rescore
  18. 2026-06-07 15:22 UTCEPSS rescore
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  20. 2026-06-06 13:45 UTCEPSS rescore
  21. 2026-06-06 13:44 UTCEPSS rescore
  22. 2026-06-05 22:44 UTCEPSS rescore
  23. 2026-06-05 06:08 UTCEPSS rescore
  24. 2026-06-05 06:07 UTCEPSS rescore
  25. 2026-06-04 13:09 UTCEPSS rescore
  26. 2026-06-04 13:09 UTCEPSS rescore
  27. 2026-06-02 20:10 UTCEPSS rescore
  28. 2026-06-02 20:10 UTCEPSS rescore
  29. 2026-06-01 13:49 UTCEPSS rescore
  30. 2026-06-01 13:49 UTCEPSS rescore
  31. 2026-05-31 22:28 UTCEPSS rescore
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  35. 2026-05-29 13:41 UTCEPSS rescore
  36. 2026-05-29 13:40 UTCEPSS rescore
  37. 2026-05-28 23:42 UTCEG score recompute
  38. 2026-05-28 23:42 UTCVendor advisory
  39. 2026-05-28 23:42 UTCGHSA enrichment
  40. 2026-05-28 13:42 UTCEPSS rescore
  41. 2026-05-28 13:42 UTCEPSS rescore
  42. 2026-05-28 13:42 UTCEPSS rescore
  43. 2026-05-27 13:38 UTCEPSS rescore
  44. 2026-05-27 13:38 UTCEPSS rescore
  45. 2026-05-26 13:41 UTCEPSS rescore
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  47. 2026-05-26 07:16 UTCEPSS rescore
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  49. 2026-05-24 16:43 UTCEPSS rescore
  50. 2026-05-22 21:15 UTCEPSS rescore
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  58. 2026-05-20 11:21 UTCEPSS rescore
  59. 2026-05-18 21:29 UTCEPSS rescore
  60. 2026-05-18 21:29 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2011-4087?
CVE-2011-4087 is a high vulnerability published on June 8, 2013. The brparseipoptions function in net/bridge/brnetfilter.c in the Linux kernel before 2.6.39 does not properly initialize a certain data structure, which allows remote attackers to cause a denial of service by leveraging connectivity to a network interface that uses an Ethernet bridge device.
When was CVE-2011-4087 disclosed?
CVE-2011-4087 was first published in the National Vulnerability Database on June 8, 2013, 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-2011-4087 actively exploited?
CVE-2011-4087 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 83.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2011-4087?
CVE-2011-4087 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2011-4087?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-4087, 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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