CVE-2011-3389

MEDIUMCVSS v2 · 4.34.3—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 4.3 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:M/Au:N/C:P/I:N/A:N. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 73.3% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Sources: epss, nvd_v2
Weaponized
4.3EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 73%
  • Public exploit code is available (Metasploit, epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 73%CVSS v2: 4.3Exploit: Metasploit · epss top5pct · epss high · public exploitExposed: 0

A fix is available — apply it.

The SSL protocol, as used in certain configurations in Microsoft Windows and Microsoft Internet Explorer, Mozilla Firefox, Google Chrome, Opera, and other products, encrypts data by using CBC mode with chained initialization vectors, which allows man-in-the-middle attackers to obtain plaintext HTTP headers via a blockwise chosen-boundary attack (BCBA) on an HTTPS session, in conjunction with JavaScript code that uses (1) the HTML5 WebSocket API, (2) the Java URLConnection API, or (3) the Silverlight WebClient API, aka a "BEAST" attack.

CVSS v2.0 (legacy)
4.3MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
4.3(low)
EG Risk
53(Track)
EG Risk 53/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity43% × 45%
Exploitation73% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
73%
EPSS %ILE
99%
KEV
Not listed

Published

September 6, 2011

Last Modified

April 29, 2026

References (178)

Vendor Advisories for CVE-2011-3389(7)

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

Patch Availability(8)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuopenjdk-6-jre-lib (6b23~pre11-0ubuntu1.11.10) @ oneiric2026-05-29ubuntu
redhatjava-1.6.0-ibm-1:1.6.0.14.0-1jpp.1.el5_92013-10-23redhat
redhatjava-1.5.0-ibm-1:1.5.0.13.1-1jpp.2.el6_22012-04-23redhat
redhatjava-1.4.2-ibm-sap-0:1.4.2.13.11.sap-1jpp.1.el52012-02-29redhat
redhatjava-1.6.0-ibm-1:1.6.0.10.0-1jpp.2.el52012-01-18redhat
redhatjava-1.4.2-ibm-0:1.4.2.13.11-1jpp.1.el52012-01-09redhat
redhatjava-1.6.0-sun-1:1.6.0.29-1jpp.1.el52011-10-19redhat
redhatjava-1.6.0-openjdk-1:1.6.0.0-1.40.1.9.10.el6_12011-10-18redhat

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.

Affected Packages

(42 across 6 ecosystems)
Debian:11(10)
PackageVulnerable rangeFixed inDependents
asterisk—1:13.7.2~dfsg-1—
bouncycastle—1.49+dfsg-1—
curl—7.24.0-1—
erlang—1:15.b-dfsg-1—
gnutls283.7.1-5 ... 3.8.9-3 (71 versions)——
haskell-tls1.5.4-1 ... 2.1.8-2 (6 versions)——
lighttpd—1.4.30-1—
nss—3.13.1.with.ckbi.1.88-1—
pound—2.6-2—
python2.7—2.7.3~rc1-1—
Debian:14(9)
PackageVulnerable rangeFixed inDependents
asterisk0.1.11-3 ... 1:13.1.0~dfsg-1.1 (192 versions)1:13.7.2~dfsg-1—
bouncycastle—1.49+dfsg-1—
curl—7.24.0-1—
erlang—1:15.b-dfsg-1—
gnutls283.8.10-1 ... 3.8.9-3 (12 versions)——
haskell-tls1.8.0-1, 2.1.8-1, 2.1.8-2——
lighttpd—1.4.30-1—
nss—3.13.1.with.ckbi.1.88-1—
pound—2.6-2—
Debian:13(8)
PackageVulnerable rangeFixed inDependents
bouncycastle—1.49+dfsg-1—
curl—7.24.0-1—
erlang—1:15.b-dfsg-1—
gnutls283.8.10-1 ... 3.8.9-3+deb13u4 (16 versions)——
haskell-tls1.8.0-1, 2.1.8-1, 2.1.8-2——
lighttpd—1.4.30-1—
nss—3.13.1.with.ckbi.1.88-1—
pound—2.6-2—
Debian:12(7)
PackageVulnerable rangeFixed inDependents
bouncycastle—1.49+dfsg-1—
curl—7.24.0-1—
erlang—1:15.b-dfsg-1—
gnutls283.7.9-2 ... 3.8.9-3 (45 versions)——
haskell-tls1.5.8-1, 1.6.0-1, 1.8.0-1, 2.1.8-1, 2.1.8-2——
lighttpd—1.4.30-1—
nss—3.13.1.with.ckbi.1.88-1—
Debian:6.0(5)
PackageVulnerable rangeFixed inDependents
curl7.21.0-1, 7.21.0-27.21.0-2.1+squeeze1—
lighttpd1.4.28-21.4.28-2+squeeze1—
nss3.12.8-1 ... 3.12.8-1+squeeze9 (14 versions)3.12.8-1+squeeze11—
openjdk-66b18-1.8.10-0+squeeze1 ... 6b18-1.8.9-0.1~squeeze1 (16 versions)6b18-1.8.10-0+squeeze2—
pound2.5-1, 2.5-1.1, 2.6-12.6-1+deb6u1—
Debian:5.0(3)
PackageVulnerable rangeFixed inDependents
curl7.18.2-8, 7.18.2-8lenny2, 7.18.2-8lenny3, 7.18.2-8lenny4, 7.18.2-8lenny57.18.2-8lenny6—
lighttpd1.4.19-5, 1.4.19-5+lenny1, 1.4.19-5+lenny21.4.19-5+lenny3—
openjdk-66b11-9.1 ... 6b18~pre4-1 (58 versions)6b18-1.8.10-0~lenny2—

Weakness Classification(2)

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

Additional Vendor Advisories

(1)

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 4× in last 7d / 9× 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. 2026-09-16 13:58 UTCEPSS rescore
  2. 2026-09-15 03:04 UTCEPSS rescore
  3. 2026-09-13 16:40 UTCEPSS rescore
  4. 2026-09-12 14:54 UTCEPSS rescore
  5. 2026-09-12 04:23 UTCOSV refresh
  6. 2026-09-06 13:41 UTCEPSS rescore
  7. 2026-09-05 15:22 UTCEPSS rescore
  8. 2026-09-04 13:55 UTCEPSS rescore
  9. 2026-08-24 10:03 UTCOSV refresh
  10. 2026-08-19 16:58 UTCEPSS rescore
  11. 2026-08-15 01:25 UTCEPSS rescore
  12. 2026-08-08 16:31 UTCEPSS rescore
  13. 2026-08-08 06:26 UTCOSV refresh
  14. 2026-08-05 19:12 UTCEPSS rescore
  15. 2026-07-26 13:43 UTCEG score recompute▲ 4.30
  16. 2026-07-23 14:14 UTCEPSS rescore
  17. 2026-07-23 01:05 UTCEG score recompute▼ 7.10
  18. 2026-07-23 00:09 UTCEG score recompute▲ 7.10
  19. 2026-07-22 23:45 UTCOSV refresh
  20. 2026-07-22 21:48 UTCEG score recompute
  21. 2026-07-22 14:03 UTCEPSS rescore
  22. 2026-07-21 15:21 UTCEPSS rescore
  23. 2026-07-20 17:03 UTCEPSS rescore
  24. 2026-07-20 17:03 UTCEPSS rescore
  25. 2026-07-19 02:25 UTCEPSS rescore
Show 74 more
  1. 2026-07-19 02:25 UTCEPSS rescore
  2. 2026-07-18 10:00 UTCEPSS rescore
  3. 2026-07-16 16:58 UTCEPSS rescore
  4. 2026-07-15 16:54 UTCEPSS rescore
  5. 2026-07-15 16:54 UTCEPSS rescore
  6. 2026-07-13 06:08 UTCEPSS rescore
  7. 2026-07-08 15:10 UTCEPSS rescore
  8. 2026-07-08 15:10 UTCEPSS rescore
  9. 2026-07-06 16:23 UTCEPSS rescore
  10. 2026-07-05 18:59 UTCOSV refresh
  11. 2026-07-05 02:26 UTCEPSS rescore
  12. 2026-07-01 15:02 UTCEPSS rescore
  13. 2026-07-01 15:02 UTCEPSS rescore
  14. 2026-06-30 23:19 UTCEPSS rescore
  15. 2026-06-30 23:19 UTCEPSS rescore
  16. 2026-06-29 14:02 UTCEPSS rescore
  17. 2026-06-25 13:46 UTCEPSS rescore
  18. 2026-06-23 21:30 UTCEPSS rescore
  19. 2026-06-23 21:30 UTCEPSS rescore
  20. 2026-06-17 17:49 UTCEPSS rescore
  21. 2026-06-17 17:49 UTCEPSS rescore
  22. 2026-06-17 17:49 UTCEPSS rescore
  23. 2026-06-17 06:05 UTCOSV refresh
  24. 2026-06-15 17:44 UTCEPSS rescore
  25. 2026-06-13 22:57 UTCEPSS rescore
  26. 2026-06-13 22:57 UTCEPSS rescore
  27. 2026-06-12 23:08 UTCEPSS rescore
  28. 2026-06-11 13:56 UTCEPSS rescore
  29. 2026-06-10 22:14 UTCEPSS rescore
  30. 2026-06-10 13:17 UTCEPSS rescore
  31. 2026-06-07 15:22 UTCEPSS rescore
  32. 2026-06-07 15:22 UTCEPSS rescore
  33. 2026-06-06 13:45 UTCEPSS rescore
  34. 2026-06-06 13:44 UTCEPSS rescore
  35. 2026-06-05 22:44 UTCEPSS rescore
  36. 2026-06-05 06:08 UTCEPSS rescore
  37. 2026-06-05 06:07 UTCEPSS rescore
  38. 2026-06-04 13:09 UTCEPSS rescore
  39. 2026-06-04 13:09 UTCEPSS rescore
  40. 2026-06-02 20:10 UTCEPSS rescore
  41. 2026-06-02 20:10 UTCEPSS rescore
  42. 2026-06-01 13:49 UTCEPSS rescore
  43. 2026-06-01 13:49 UTCEPSS rescore
  44. 2026-05-31 22:28 UTCEPSS rescore
  45. 2026-05-31 22:28 UTCEPSS rescore
  46. 2026-05-31 00:14 UTCEPSS rescore
  47. 2026-05-31 00:14 UTCEPSS rescore
  48. 2026-05-29 13:41 UTCEPSS rescore
  49. 2026-05-29 13:40 UTCEPSS rescore
  50. 2026-05-29 07:06 UTCEG score recompute
  51. 2026-05-29 07:06 UTCVendor advisory
  52. 2026-05-29 07:06 UTCGHSA enrichment
  53. 2026-05-28 13:42 UTCEPSS rescore
  54. 2026-05-28 13:42 UTCEPSS rescore
  55. 2026-05-28 13:42 UTCEPSS rescore
  56. 2026-05-27 13:38 UTCEPSS rescore
  57. 2026-05-27 13:38 UTCEPSS rescore
  58. 2026-05-26 13:41 UTCEPSS rescore
  59. 2026-05-26 13:41 UTCEPSS rescore
  60. 2026-05-26 07:16 UTCEPSS rescore
  61. 2026-05-26 07:16 UTCEPSS rescore
  62. 2026-05-24 16:43 UTCEPSS rescore
  63. 2026-05-23 22:05 UTCOSV refresh
  64. 2026-05-22 21:15 UTCEPSS rescore
  65. 2026-05-22 21:15 UTCEPSS rescore
  66. 2026-05-22 21:15 UTCEPSS rescore
  67. 2026-05-20 22:37 UTCEPSS rescore
  68. 2026-05-20 22:37 UTCEPSS rescore
  69. 2026-05-20 22:37 UTCEPSS rescore
  70. 2026-05-20 11:21 UTCEPSS rescore
  71. 2026-05-20 11:21 UTCEPSS rescore
  72. 2026-05-20 11:21 UTCEPSS rescore
  73. 2026-05-18 21:29 UTCEPSS rescore
  74. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 Metasploit module) (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCmpgn/BEAST-PoC
    First seen Mar 28, 2015

    :muscle: Proof Of Concept of the BEAST attack against SSL/TLS CVE-2011-3389 :muscle:

    Open source ↗
  • Metasploitauxiliary/scanner/ssl/ssl_version✓ verified
    First seen Oct 14, 2014

    SSL/TLS Version Detection

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(4)

What is CVE-2011-3389?
CVE-2011-3389 is a medium vulnerability published on September 6, 2011. The SSL protocol, as used in certain configurations in Microsoft Windows and Microsoft Internet Explorer, Mozilla Firefox, Google Chrome, Opera, and other products, encrypts data by using CBC mode with chained initialization vectors, which allows man-in-the-middle attackers to obtain plaintext HTTP…
When was CVE-2011-3389 disclosed?
CVE-2011-3389 was first published in the National Vulnerability Database on September 6, 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-2011-3389 actively exploited?
CVE-2011-3389 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 73% probability of exploitation in the next 30 days, which ranks it in the top 0.6% of all scored CVEs.
How do I remediate CVE-2011-3389?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-3389, 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.

Dependency Blast Radius

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