CVE-2018-12404

MEDIUMNVD 5.96.7▲
EchelonGraph scoreHIGH confidence

Score elevated to 6.7 because EPSS predicts 44% probability of exploitation within the next 30 days (98th percentile of EPSS-scored CVEs). NVD baseline CVSS 5.9 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Elevated
6.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 44%CVSS: 5.9Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

A cached side channel attack during handshakes using RSA encryption could allow for the decryption of encrypted content. This is a variant of the Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) and affects all NSS versions prior to NSS 3.41.

CVSS v3
5.9
EG Score
6.7MEDIUMhigh confidence
EG Risk
52
EG Risk 52/100CISA SSVC

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
Severity67% × 45%
Exploitation44% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track* or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
44%
EPSS %ILE
98th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (EG-KEV: elevated) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

May 2, 2019

Last Modified

November 21, 2024

References (16)

Vendor Advisories for CVE-2018-12404(2)

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

Patch Availability(4)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibnss3-tools (2:3.36.1-1ubuntu1.1) @ cosmic2026-05-27ubuntu
ubuntulibnss3 (2:3.28.4-0ubuntu0.12.04.2) @ precise2026-05-27ubuntu
redhatansible-tower-37/ansible-tower-memcached-rhel7:1.4.15-282020-02-18redhat
redhatnss-util-0:3.44.0-3.el72019-08-06redhat

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

(16 across 16 ecosystems)
Alpine:v3.10(1)
PackageVulnerable rangeFix by version rangeDependents
nss—
  • every version up to 3.41-r0: fixed in 3.41-r0
—
Alpine:v3.11(1)
PackageVulnerable rangeFix by version rangeDependents
nss—
  • every version up to 3.41-r0: fixed in 3.41-r0
—
Alpine:v3.12(1)
PackageVulnerable rangeFix by version rangeDependents
nss—
  • every version up to 3.41-r0: fixed in 3.41-r0
—
Alpine:v3.19(1)
PackageVulnerable rangeFix by version rangeDependents
nss—
  • every version up to 3.41-r0: fixed in 3.41-r0
—
Alpine:v3.20(1)
PackageVulnerable rangeFix by version rangeDependents
nss—
  • every version up to 3.41-r0: fixed in 3.41-r0
—
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
nss—
  • every version up to 3.41-r0: fixed in 3.41-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
nss—
  • every version up to 3.41-r0: fixed in 3.41-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
nss—
  • every version up to 3.41-r0: fixed in 3.41-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
nss—
  • every version up to 3.41-r0: fixed in 3.41-r0
—
Alpine:v3.9(1)
PackageVulnerable rangeFix by version rangeDependents
nss—
  • every version up to 3.41-r0: fixed in 3.41-r0
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
nss—
  • every version up to 2:3.41-1: fixed in 2:3.41-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
nss—
  • every version up to 2:3.41-1: fixed in 2:3.41-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
nss—
  • every version up to 2:3.41-1: fixed in 2:3.41-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
nss—
  • every version up to 2:3.41-1: fixed in 2:3.41-1
—
Debian:8(1)
PackageVulnerable rangeFix by version rangeDependents
nss2:3.17.2-1.1 ... 2:3.26-1 (19 versions)
  • every version up to 2:3.26-1+debu8u4: fixed in 2:3.26-1+debu8u4
—
Debian:9(1)
PackageVulnerable rangeFix by version rangeDependents
nss2:3.26.2-1.1, 2:3.26.2-1.1+deb9u1
  • every version up to 2:3.26.2-1.1+deb9u2: fixed in 2:3.26.2-1.1+deb9u2
—

Additional Vendor Advisories

(2)

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 3× in last 7d / 23× 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 140 total refreshes for this CVE.

  1. 2026-10-03 14:21 UTCEPSS rescore
  2. 2026-09-30 14:59 UTCEPSS rescore
  3. 2026-09-30 09:52 UTCEG score recompute
  4. 2026-09-28 08:32 UTCOSV refresh
  5. 2026-09-27 13:40 UTCEPSS rescore
  6. 2026-09-27 13:40 UTCEPSS rescore
  7. 2026-09-26 15:53 UTCEPSS rescore
  8. 2026-09-26 00:19 UTCEPSS rescore
  9. 2026-09-24 13:59 UTCEPSS rescore
  10. 2026-09-23 13:42 UTCEPSS rescore
  11. 2026-09-21 20:27 UTCEPSS rescore
  12. 2026-09-19 15:36 UTCEPSS rescore
  13. 2026-09-18 19:22 UTCEPSS rescore
  14. 2026-09-17 19:22 UTCEPSS rescore
  15. 2026-09-16 14:03 UTCEPSS rescore
  16. 2026-09-16 05:06 UTCEPSS rescore
  17. 2026-09-15 03:05 UTCEPSS rescore
  18. 2026-09-12 14:56 UTCEPSS rescore
  19. 2026-09-11 14:47 UTCEPSS rescore
  20. 2026-09-10 09:27 UTCEPSS rescore
  21. 2026-09-08 12:34 UTCOSV refresh
  22. 2026-09-07 15:57 UTCEPSS rescore
  23. 2026-09-06 13:43 UTCEPSS rescore
  24. 2026-09-05 15:24 UTCEPSS rescore
  25. 2026-09-04 13:56 UTCEPSS rescore
Show 75 more
  1. 2026-09-04 05:02 UTCEPSS rescore
  2. 2026-09-02 14:07 UTCEPSS rescore
  3. 2026-09-02 14:07 UTCEPSS rescore
  4. 2026-09-01 13:49 UTCEPSS rescore
  5. 2026-08-30 19:13 UTCEPSS rescore
  6. 2026-08-28 21:36 UTCEPSS rescore
  7. 2026-08-27 14:21 UTCEPSS rescore
  8. 2026-08-26 14:41 UTCEPSS rescore
  9. 2026-08-25 13:44 UTCEPSS rescore
  10. 2026-08-23 00:14 UTCEPSS rescore
  11. 2026-08-21 23:44 UTCEPSS rescore
  12. 2026-08-21 23:14 UTCOSV refresh
  13. 2026-08-20 22:51 UTCEPSS rescore
  14. 2026-08-19 17:00 UTCEPSS rescore
  15. 2026-08-18 13:43 UTCEPSS rescore
  16. 2026-08-17 13:42 UTCEPSS rescore
  17. 2026-08-16 02:10 UTCEPSS rescore
  18. 2026-08-15 01:26 UTCEPSS rescore
  19. 2026-08-13 21:56 UTCEPSS rescore
  20. 2026-08-12 13:46 UTCEPSS rescore
  21. 2026-08-11 13:36 UTCEPSS rescore
  22. 2026-08-07 16:22 UTCEPSS rescore
  23. 2026-08-06 13:42 UTCEPSS rescore
  24. 2026-08-06 13:42 UTCEPSS rescore
  25. 2026-08-06 04:54 UTCOSV refresh
  26. 2026-08-04 15:05 UTCEPSS rescore
  27. 2026-08-01 04:12 UTCEPSS rescore
  28. 2026-07-30 16:24 UTCEPSS rescore
  29. 2026-07-30 01:27 UTCEPSS rescore
  30. 2026-07-28 15:32 UTCEPSS rescore
  31. 2026-07-26 14:51 UTCEPSS rescore
  32. 2026-07-26 14:51 UTCEPSS rescore
  33. 2026-07-24 14:14 UTCEPSS rescore
  34. 2026-07-23 14:15 UTCEPSS rescore
  35. 2026-07-23 14:15 UTCEPSS rescore
  36. 2026-07-23 01:33 UTCEG score recompute▲ 0.80
  37. 2026-07-22 22:13 UTCEG score recompute
  38. 2026-07-22 14:04 UTCEPSS rescore
  39. 2026-07-21 15:21 UTCEPSS rescore
  40. 2026-07-20 17:04 UTCEPSS rescore
  41. 2026-07-20 17:04 UTCEPSS rescore
  42. 2026-07-20 17:04 UTCOSV refresh
  43. 2026-07-19 14:28 UTCEPSS rescore
  44. 2026-07-19 02:26 UTCEPSS rescore
  45. 2026-07-19 02:26 UTCEPSS rescore
  46. 2026-07-16 16:59 UTCEPSS rescore
  47. 2026-07-16 16:59 UTCEPSS rescore
  48. 2026-07-15 16:55 UTCEPSS rescore
  49. 2026-07-13 22:26 UTCEPSS rescore
  50. 2026-07-13 06:10 UTCEPSS rescore
  51. 2026-07-12 05:43 UTCEPSS rescore
  52. 2026-07-11 08:24 UTCEPSS rescore
  53. 2026-07-09 19:06 UTCEPSS rescore
  54. 2026-07-05 02:27 UTCEPSS rescore
  55. 2026-07-03 12:26 UTCOSV refresh
  56. 2026-07-02 16:54 UTCEPSS rescore
  57. 2026-07-01 15:03 UTCEPSS rescore
  58. 2026-07-01 15:03 UTCEPSS rescore
  59. 2026-06-29 14:03 UTCEPSS rescore
  60. 2026-06-28 14:04 UTCEPSS rescore
  61. 2026-06-28 04:53 UTCEPSS rescore
  62. 2026-06-28 04:53 UTCEPSS rescore
  63. 2026-06-25 13:47 UTCEPSS rescore
  64. 2026-06-25 13:47 UTCEPSS rescore
  65. 2026-06-24 14:02 UTCEPSS rescore
  66. 2026-06-24 14:02 UTCEPSS rescore
  67. 2026-06-23 21:30 UTCEPSS rescore
  68. 2026-06-21 14:54 UTCEPSS rescore
  69. 2026-06-21 14:54 UTCEPSS rescore
  70. 2026-06-21 01:57 UTCEPSS rescore
  71. 2026-06-21 01:57 UTCEPSS rescore
  72. 2026-06-18 17:50 UTCEPSS rescore
  73. 2026-06-18 17:50 UTCEPSS rescore
  74. 2026-06-17 17:50 UTCEPSS rescore
  75. 2026-06-17 17:50 UTCEPSS rescore

Related CVEs(same product + same vendor)

Frequently asked(5)

What is CVE-2018-12404?
CVE-2018-12404 is a medium vulnerability published on May 2, 2019. A cached side channel attack during handshakes using RSA encryption could allow for the decryption of encrypted content. This is a variant of the Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) and affects all NSS versions prior to NSS 3.41.
When was CVE-2018-12404 disclosed?
CVE-2018-12404 was first published on May 2, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-12404 actively exploited?
CVE-2018-12404 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 44% probability of exploitation in the next 30 days (98th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2018-12404?
CVE-2018-12404 has a CVSS v3 base score of 5.9 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 6.7 (MEDIUM).
How do I remediate CVE-2018-12404?
A fix for CVE-2018-12404 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2018-12404 are linked in the Vendor Advisories panel on this page.

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