CVE-2007-0908

MEDIUMCVSS v2 · 5.05.0—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 5.0 — 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:L/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 12.2% 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
5.0EG
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: 12%CVSS v2: 5.0Exploit: Exploit-DB (verified)Exposed services: Not assessed

A fix is available — apply it.

The WDDX deserializer in the wddx extension in PHP 5 before 5.2.1 and PHP 4 before 4.4.5 does not properly initialize the key_length variable for a numerical key, which allows context-dependent attackers to read stack memory via a wddxPacket element that contains a variable with a string name before a numerical variable.

CVSS v2.0 (legacy)
5.0MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
5.0MEDIUMlow confidence
EG Risk
53
EG Risk 53/100

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)
Severity50% × 45%
The EG Score, 5.0 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
12%
EPSS %ILE
96th
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

February 13, 2007

Last Modified

April 23, 2026

References (43)

15 of 43 shown · show the other 28

Patch Availability(6)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntuphp5-odbc (5.1.6-1ubuntu2.2) @ edgy2026-05-31ubuntu
redhatphp-0:5.1.6-7.el52007-03-14redhat
redhatstronghold-php-0:4.1.2-122007-02-26redhat
redhatphp-0:5.1.6-3.el4s1.52007-02-22redhat
redhatphp-0:4.1.2-2.142007-02-21redhat
redhatphp-0:4.3.9-3.22.32007-02-19redhat

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 rangeFix by version rangeDependents
php44:4.3.10-15, 4:4.3.10-16, 4:4.3.10-17, 4:4.3.10-18
  • every version up to 4:4.3.10-19: fixed in 4:4.3.10-19
—

Weakness Classification(1)

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

All Vendor Advisories

(6)

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 8× in last 7d / 14× 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 76 of 89 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. 24 repeat rows among the latest 100 are merged into the row they repeat. The 13 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 12% · 96th percentile
  2. 2026-10-10 19:53 UTCEPSS rescoreEPSS 12% · 96th percentile
  3. 2026-10-09 19:59 UTCEPSS rescoreEPSS 12% · 96th percentile
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  9. 2026-09-30 14:57 UTCEPSS rescoreEPSS 12% · 96th percentile
  10. 2026-09-29 07:39 UTCEG score recompute
  11. 2026-09-18 19:20 UTCEPSS rescoreEPSS 12% · 95th percentile
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  24. 2026-08-04 15:03 UTCEPSS rescoreEPSS 12% · 95th percentile
  25. 2026-07-28 15:30 UTCEPSS rescoreEPSS 12% · 95th percentile
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  1. 2026-07-26 13:31 UTCEG score recompute▲ 5.00
  2. 2026-07-25 14:11 UTCEPSS rescoreEPSS 12% · 95th percentile
  3. 2026-07-24 14:11 UTCEPSS rescoreEPSS 12% · 95th percentile
  4. 2026-07-23 00:53 UTCEG score recompute
  5. 2026-07-23 00:32 UTCEG score recompute
  6. 2026-07-22 23:57 UTCEG score recompute
  7. 2026-07-22 21:36 UTCEG score recompute
  8. 2026-07-22 14:03 UTCEPSS rescoreEPSS 12% · 95th percentile
  9. 2026-07-21 15:19 UTCEPSS rescoreEPSS 12% · 95th percentile
  10. 2026-07-20 17:02 UTCEPSS rescoreEPSS 12% · 95th percentile
  11. 2026-07-16 16:58 UTCEPSS rescoreEPSS 12% · 95th percentile
  12. 2026-07-15 16:54 UTCEPSS rescoreEPSS 12% · 95th percentile
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  19. 2026-07-02 14:00 UTCEPSS rescoreEPSS 12% · 95th percentile
  20. 2026-07-01 15:02 UTCEPSS rescoreEPSS 12% · 95th percentile
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  37. 2026-06-06 13:44 UTCEPSS rescoreEPSS 17% · 95th percentile
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  40. 2026-06-04 13:09 UTCEPSS rescoreEPSS 17% · 95th percentile
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  42. 2026-06-01 13:49 UTCEPSS rescoreEPSS 17% · 95th percentile
  43. 2026-05-31 22:28 UTCEPSS rescoreEPSS 17% · 95th percentile
  44. 2026-05-31 04:17 UTCEG score recompute
  45. 2026-05-31 04:17 UTCVendor advisory
  46. 2026-05-31 04:17 UTCGHSA enrichmentGHSA-cp4j-q49w-68jf
  47. 2026-05-31 00:13 UTCEPSS rescoreEPSS 17% · 95th percentile
  48. 2026-05-29 13:40 UTCEPSS rescoreEPSS 17% · 95th percentile
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  50. 2026-05-27 13:37 UTCEPSS rescoreEPSS 17% · 94th percentile
  51. 2026-05-26 13:41 UTCEPSS rescoreEPSS 17% · 94th percentile

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-3414✓ verified
    Published Mar 4, 2007

    PHP < 4.4.5/5.2.1 - WDDX Session Deserialization Information Leak

    Open source ↗

Related CVEs(same product + same vendor + same CWE)

Frequently asked(4)

What is CVE-2007-0908?
CVE-2007-0908 is a medium-severity vulnerability; its CVE record was published on February 13, 2007. The WDDX deserializer in the wddx extension in PHP 5 before 5.2.1 and PHP 4 before 4.4.5 does not properly initialize the key_length variable for a numerical key, which allows context-dependent attackers to read stack memory via a wddxPacket element that contains a variable with a string name…
When was CVE-2007-0908 made public?
CVE-2007-0908 was made public on February 13, 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 February 13, 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-2007-0908 actively exploited?
CVE-2007-0908 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 12% probability of exploitation in the next 30 days (96th percentile of EPSS-scored CVEs).
How do I remediate CVE-2007-0908?
A fix for CVE-2007-0908 is available: update to the fixed version the vendor names in its advisory.

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