CVE-2007-4033

HIGHCVSS v2 · 7.57.5—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 7.5 — v2 rates that HIGH (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: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 18.7% 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
7.5EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • Public exploit code is available (Exploit-DB (verified), epss top5pct, public exploit)
CISA-KEV: Not listedEPSS PROB: 19%CVSS v2: 7.5Exploit: Exploit-DB (verified) · epss top5pct · public exploitExposed: 0

A fix is available — apply it.

Buffer overflow in the intT1_EnvGetCompletePath function in lib/t1lib/t1env.c in t1lib 5.1.1 allows context-dependent attackers to execute arbitrary code via a long FileName parameter. NOTE: this issue was originally reported to be in the imagepsloadfont function in php_gd2.dll in the gd (PHP_GD2) extension in PHP 5.2.3.

CVSS v2.0 (legacy)
7.5HIGHNVD never assigned a CVSS v3 rating to this CVE
EG Score
7.5(low)
EG Risk
64(Track)
EG Risk 64/100SSVC: 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
Severity75% × 45%
Exploitation65% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
19%
EPSS %ILE
97%
KEV
Not listed

Published

July 27, 2007

Last Modified

April 23, 2026

References (80)

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibt1-5 (5.1.0-2ubuntu0.7.04.1) @ feisty2026-05-31ubuntu
redhattetex-0:3.0-33.2.el5_1.22007-11-08redhat
redhatxpdf-1:0.92-19.el22007-11-07redhat
redhatxpdf-1:2.02-11.el32007-11-07redhat

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

(2 across 2 ecosystems)
Debian:3.1(1)
PackageVulnerable rangeFixed inDependents
t1lib5.0.2-35.0.2-3sarge1—
Debian:4.0(1)
PackageVulnerable rangeFixed inDependents
t1lib5.1.0-25.1.0-2etch1—

Weakness Classification(1)

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

All Vendor Advisories

(4)

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 110 total refreshes for this CVE.

  1. 2026-09-18 19:20 UTCEPSS rescore
  2. 2026-09-17 19:20 UTCEPSS rescore
  3. 2026-09-15 03:04 UTCEPSS rescore
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  17. 2026-07-26 13:33 UTCEG score recompute▲ 7.50
  18. 2026-07-25 14:12 UTCEPSS rescore
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  20. 2026-07-23 14:13 UTCEPSS rescore
  21. 2026-07-23 00:54 UTCEG score recompute
  22. 2026-07-23 00:33 UTCEG score recompute
  23. 2026-07-22 23:58 UTCEG score recompute
  24. 2026-07-22 21:37 UTCEG score recompute
  25. 2026-07-22 14:03 UTCEPSS rescore
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  1. 2026-07-21 15:19 UTCEPSS rescore
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  44. 2026-06-10 13:17 UTCEPSS rescore
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  60. 2026-05-31 22:28 UTCEPSS rescore
  61. 2026-05-31 22:28 UTCEPSS rescore
  62. 2026-05-31 01:37 UTCEG score recompute
  63. 2026-05-31 01:37 UTCVendor advisory
  64. 2026-05-31 01:37 UTCGHSA enrichment
  65. 2026-05-29 13:40 UTCEPSS rescore
  66. 2026-05-28 13:42 UTCEPSS rescore
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Publicly available exploits

(2 references)

Working exploit code is in the public domain (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-30401✓ verified
    First seen Jul 26, 2007

    T1lib - 'intT1_Env_GetCompletePath' Buffer Overflow (PoC)

    Open source ↗
  • Exploit-DBEDB-4227✓ verified
    First seen Jul 26, 2007

    PHP 5.2.3 - 'PHP_gd2.dll' imagepsloadfont Local Buffer Overflow (PoC)

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(4)

What is CVE-2007-4033?
CVE-2007-4033 is a high vulnerability published on July 27, 2007. Buffer overflow in the intT1EnvGetCompletePath function in lib/t1lib/t1env.c in t1lib 5.1.1 allows context-dependent attackers to execute arbitrary code via a long FileName parameter. NOTE: this issue was originally reported to be in the imagepsloadfont function in phpgd2.dll in the gd (PHP_GD2)…
When was CVE-2007-4033 disclosed?
CVE-2007-4033 was first published in the National Vulnerability Database on July 27, 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-2007-4033 actively exploited?
CVE-2007-4033 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 19% probability of exploitation in the next 30 days, which ranks it in the top 2.8% of all scored CVEs.
How do I remediate CVE-2007-4033?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2007-4033, 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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