CVE-2007-0008

MEDIUMCVSS v2 · 6.86.8—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 6.8 — 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:P/A:P. 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 4.3% 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
6.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 4%CVSS v2: 6.8Exploit: None knownExposed: 0

A fix is available — apply it.

Integer underflow in the SSLv2 support in Mozilla Network Security Services (NSS) before 3.11.5, as used by Firefox before 1.5.0.10 and 2.x before 2.0.0.2, SeaMonkey before 1.0.8, Thunderbird before 1.5.0.10, and certain Sun Java System server products before 20070611, allows remote attackers to execute arbitrary code via a crafted SSLv2 server message containing a public key that is too short to encrypt the "Master Secret", which results in a heap-based overflow.

CVSS v2.0 (legacy)
6.8MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
6.8(low)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity68% × 45%
Exploitation4% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
4%
EPSS %ILE
91%
KEV
Not listed

Published

February 26, 2007

Last Modified

April 23, 2026

References (148)

Patch Availability(5)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatyelp-0:2.16.0-14.0.1.el52007-03-14redhat
redhatthunderbird-0:1.5.0.10-1.el52007-03-14redhat
redhatthunderbird-0:1.5.0.10-0.1.el42007-03-02redhat
redhatseamonkey-0:1.0.8-0.2.el42007-02-24redhat
redhatfirefox-0:1.5.0.10-0.1.el42007-02-23redhat

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

(1 across 1 ecosystem)
Debian:3.1(1)
PackageVulnerable rangeFixed inDependents
mozilla-firefox1.0.4-2 ... 1.0.4-2sarge9 (15 versions)1.0.4-2sarge17—

All Vendor Advisories

(5)

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 1× in last 7d / 8× 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 109 total refreshes for this CVE.

  1. 2026-09-18 19:20 UTCEPSS rescore
  2. 2026-09-15 03:04 UTCEPSS rescore
  3. 2026-09-12 14:54 UTCEPSS rescore
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  16. 2026-07-28 15:30 UTCEPSS rescore
  17. 2026-07-26 13:31 UTCEG score recompute▲ 6.80
  18. 2026-07-25 14:11 UTCEPSS rescore
  19. 2026-07-24 14:11 UTCEPSS rescore
  20. 2026-07-23 00:52 UTCEG score recompute
  21. 2026-07-23 00:31 UTCEG score recompute
  22. 2026-07-22 23:56 UTCEG score recompute
  23. 2026-07-22 21:36 UTCEG score recompute
  24. 2026-07-22 14:03 UTCEPSS rescore
  25. 2026-07-21 15:19 UTCEPSS rescore
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  1. 2026-07-20 17:02 UTCEPSS rescore
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  18. 2026-06-30 23:18 UTCEPSS rescore
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  22. 2026-06-28 04:52 UTCEPSS rescore
  23. 2026-06-25 13:46 UTCEPSS rescore
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  25. 2026-06-24 14:02 UTCEPSS rescore
  26. 2026-06-24 14:01 UTCEPSS rescore
  27. 2026-06-23 21:29 UTCEPSS rescore
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  29. 2026-06-21 01:56 UTCEPSS rescore
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  32. 2026-06-19 19:22 UTCEPSS rescore
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  38. 2026-06-16 17:49 UTCEPSS rescore
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  40. 2026-06-15 17:44 UTCEPSS rescore
  41. 2026-06-14 23:13 UTCEPSS rescore
  42. 2026-06-13 22:57 UTCEPSS rescore
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  44. 2026-06-12 23:08 UTCEPSS rescore
  45. 2026-06-08 14:13 UTCEPSS rescore
  46. 2026-06-07 15:21 UTCEPSS rescore
  47. 2026-06-07 15:21 UTCEPSS rescore
  48. 2026-06-06 13:44 UTCEPSS rescore
  49. 2026-06-06 13:44 UTCEPSS rescore
  50. 2026-06-05 22:44 UTCEPSS rescore
  51. 2026-06-05 22:44 UTCEPSS rescore
  52. 2026-06-05 06:07 UTCEPSS rescore
  53. 2026-06-04 13:09 UTCEPSS rescore
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  57. 2026-06-01 13:49 UTCEPSS rescore
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  59. 2026-05-31 22:28 UTCEPSS rescore
  60. 2026-05-31 22:28 UTCEPSS rescore
  61. 2026-05-31 04:06 UTCEG score recompute
  62. 2026-05-31 04:06 UTCVendor advisory
  63. 2026-05-31 04:05 UTCGHSA enrichment
  64. 2026-05-31 00:13 UTCEPSS rescore
  65. 2026-05-31 00:13 UTCEPSS rescore
  66. 2026-05-29 13:40 UTCEPSS rescore
  67. 2026-05-28 13:42 UTCEPSS rescore
  68. 2026-05-28 13:42 UTCEPSS rescore
  69. 2026-05-27 13:37 UTCEPSS rescore
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  73. 2026-05-26 07:16 UTCEPSS rescore
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  75. 2026-05-26 07:16 UTCEPSS rescore

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Frequently asked(4)

What is CVE-2007-0008?
CVE-2007-0008 is a medium vulnerability published on February 26, 2007. Integer underflow in the SSLv2 support in Mozilla Network Security Services (NSS) before 3.11.5, as used by Firefox before 1.5.0.10 and 2.x before 2.0.0.2, SeaMonkey before 1.0.8, Thunderbird before 1.5.0.10, and certain Sun Java System server products before 20070611, allows remote attackers to…
When was CVE-2007-0008 disclosed?
CVE-2007-0008 was first published in the National Vulnerability Database on February 26, 2007, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2007-0008 actively exploited?
CVE-2007-0008 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4% probability of exploitation in the next 30 days, which ranks it in the top 9.1% of all scored CVEs.
How do I remediate CVE-2007-0008?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2007-0008, 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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