CVE-2007-3806

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 10.7% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Triggered by: NVD CVSS v2.0 (legacy fallback)
Sources: epss, nvd_v2
Weaponized
6.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Public exploit code is available (Exploit-DB, marked verified by Exploit-DB)
CISA-KEV: Not listedEPSS PROB: 11%CVSS v2: 6.8Exploit: Exploit-DB (verified)Exposed services: Not assessed

A fix is available — apply it.

The glob function in PHP 5.2.3 allows context-dependent attackers to cause a denial of service and possibly execute arbitrary code via an invalid value of the flags parameter, probably related to memory corruption or an invalid read on win32 platforms, and possibly related to lack of initialization for a glob structure.

CVSS v2.0 (legacy)
6.8MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
6.8MEDIUMlow confidence
EG Risk
61
EG Risk 61/100

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 (value × EchelonGraph’s weight)
Severity68% × 45%
The EG Score, 6.8 of 10.
Exploitation65% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 2 (Weaponized): a constant, not a probability.
Automatability30% × 15%
EchelonGraph's default before algorithm v3.4: CISA had not published Automatable for this CVE.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track or Track* at medium and Track* or Attend at high mission impact.
Exploitation public PoC (EG-KEV: weaponized) · Automatable unknown (not published for this CVE) · Technical impact unknown (not published for this CVE). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
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
11%
EPSS %ILE
95th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track or Track* at medium and Track* or Attend at high mission impact.

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: weaponized) · Automatable unknown (not published for this CVE) · Technical impact unknown (not published for this CVE). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

Published

July 17, 2007

Last Modified

April 23, 2026

References (18)

15 of 18 shown · show the other 3

Affected Packages

(3 across 2 ecosystems)
Debian:4.0(2)
PackageVulnerable rangeFix by version rangeDependents
php46:4.4.4-8+etch1, 6:4.4.4-8+etch2, 6:4.4.4-8+etch3, 6:4.4.4-8+etch4
  • every version up to 6:4.4.4-8+etch6: fixed in 6:4.4.4-8+etch6
—
php55.2.0-8+etch1 ... 5.2.0-8+etch9~bpo31+1 (11 versions)
  • every version up to 5.2.0-8+etch11: fixed in 5.2.0-8+etch11
—
Debian:5.0(1)
PackageVulnerable rangeFix by version rangeDependents
php5—
  • every version up to 5.2.3-1+lenny1: fixed in 5.2.3-1+lenny1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 16× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 79 of 101 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 21 repeat rows among the latest 100 are merged into the row they repeat. The 22 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 13:37 UTCEPSS rescoreEPSS 11% · 95th percentile
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  12. 2026-09-29 07:42 UTCEG score recompute
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  1. 2026-07-30 16:22 UTCEPSS rescoreEPSS 11% · 95th percentile
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  3. 2026-07-28 15:30 UTCEPSS rescoreEPSS 11% · 95th percentile
  4. 2026-07-26 13:33 UTCEG score recompute▲ 6.80
  5. 2026-07-25 14:12 UTCEPSS rescoreEPSS 11% · 95th percentile
  6. 2026-07-24 14:11 UTCEPSS rescoreEPSS 11% · 95th percentile
  7. 2026-07-23 14:13 UTCEPSS rescoreEPSS 11% · 95th percentile
  8. 2026-07-23 00:54 UTCEG score recompute
  9. 2026-07-23 00:33 UTCEG score recompute
  10. 2026-07-22 23:58 UTCEG score recompute
  11. 2026-07-22 21:37 UTCEG score recompute
  12. 2026-07-22 14:03 UTCEPSS rescoreEPSS 11% · 95th percentile
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  14. 2026-07-20 17:03 UTCEPSS rescoreEPSS 11% · 95th percentile
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  20. 2026-07-11 08:22 UTCEPSS rescoreEPSS 11% · 95th percentile
  21. 2026-07-08 15:09 UTCEPSS rescoreEPSS 11% · 95th percentile
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  41. 2026-06-13 22:57 UTCEPSS rescoreEPSS 5.2% · 90th percentile
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  52. 2026-06-01 13:49 UTCEPSS rescoreEPSS 5.2% · 90th percentile
  53. 2026-05-31 22:28 UTCEPSS rescoreEPSS 5.2% · 90th percentile
  54. 2026-05-31 01:47 UTCEG score recompute

Publicly available exploits

(1 reference)

Public exploit code is referenced for this CVE (1 Exploit-DB entry). Defenders should treat patch urgency accordingly.

  • Exploit-DBEDB-4181✓ verified
    Published Jul 14, 2007

    PHP 5.2.3 - 'glob()' Denial of Service

    Open source ↗

Related CVEs(same product + same CWE)

Frequently asked(4)

What is CVE-2007-3806?
CVE-2007-3806 is a medium-severity vulnerability; its CVE record was published on July 17, 2007. The glob function in PHP 5.2.3 allows context-dependent attackers to cause a denial of service and possibly execute arbitrary code via an invalid value of the flags parameter, probably related to memory corruption or an invalid read on win32 platforms, and possibly related to lack of initialization…
When was CVE-2007-3806 made public?
CVE-2007-3806 was made public on July 14, 2007: that is the date its CVE record's CNA, MITRE Corporation, gives for when the vulnerability was made public. The CVE record itself was published on July 17, 2007. EchelonGraph's copy of the record carries a last-modified date of April 23, 2026; the record at its source may have been updated since.
Is CVE-2007-3806 actively exploited?
CVE-2007-3806 is not currently on CISA's Known Exploited Vulnerabilities catalog. EchelonGraph's EG-KEV model places it in Tier 2 (Weaponized), which is not evidence of exploitation: Exploit-DB marks a public exploit for it as verified. EchelonGraph does not test whether exploit code works. FIRST EPSS estimates a 11% probability of exploitation in the next 30 days (95th percentile of EPSS-scored CVEs).
How do I remediate CVE-2007-3806?
A fix for CVE-2007-3806 is available: update to the fixed version the vendor names in its advisory.

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