Buffer overflow in the LWZReadByte_ function in ext/gd/libgd/gd_gif_in.c in the GD extension in PHP before 5.1.5 allows remote attackers to have an unknown impact via a GIF file with input_code_size greater than MAX_LWZ_BITS, which triggers an overflow when initializing the table array.
CVE-2006-4484
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 2.6 — v2 rates that LOW (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:H/Au:N/C:N/I:N/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 5.1% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v2.0 (legacy)
- 2.6LOWNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 2.6(low)
- EG Risk
- 18(Track)EG Risk 18/100SSVC: 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 computedSeverity26% × 45%Exploitation5% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 9%
- EPSS %ILE
- 95%
- KEV
- Not listed
Published
August 31, 2006
Last Modified
April 16, 2026
References (100)
- cve@mitreftp://patches.sgi.com/support/free/security/advisories/20061001-01-P.asc
- cve@mitrehttp://bugs.php.net/bug.php?id=38112
- cve@mitrehttp://cvs.php.net/viewvc.cgi/php-src/ext/gd/libgd/gd_gif_in.c?r1=1.10&r2=1.11
- cve@mitrehttp://cvs.php.net/viewvc.cgi/php-src/ext/gd/libgd/gd_gif_in.c?view=log
- cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2008-02/msg00003.html
- cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2008-03/msg00001.html
- cve@mitrehttp://rhn.redhat.com/errata/RHSA-2006-0688.html
- cve@mitrehttp://secunia.com/advisories/21546
- cve@mitrehttp://secunia.com/advisories/21768
- cve@mitrehttp://secunia.com/advisories/21842
- cve@mitrehttp://secunia.com/advisories/22039
- cve@mitrehttp://secunia.com/advisories/22069
- cve@mitrehttp://secunia.com/advisories/22225
- cve@mitrehttp://secunia.com/advisories/22440
- cve@mitrehttp://secunia.com/advisories/22487
Patch Availability(4)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | php4-cli (4:4.3.10-10ubuntu4.7) @ hoary | 2026-05-31 | ubuntu |
| redhat | gd-0:2.0.33-9.4.el5_1.1 | 2008-02-28 | redhat |
| redhat | php-0:5.1.4-1.el4s1.4 | 2006-10-05 | redhat |
| redhat | php-0:4.3.9-3.18 | 2006-09-21 | redhat |
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
(8 across 4 ecosystems)
Debian:11(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| libgd2 | — | 2.0.33-5.1 | — |
| xloadimage | 4.1-25, 4.1-26, 4.1-27 | — | — |
Debian:12(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| libgd2 | — | 2.0.33-5.1 | — |
| xloadimage | 4.1-25, 4.1-26, 4.1-27 | — | — |
Debian:13(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| libgd2 | — | 2.0.33-5.1 | — |
| xloadimage | 4.1-26, 4.1-27 | — | — |
Debian:14(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| libgd2 | — | 2.0.33-5.1 | — |
| xloadimage | 4.1-26, 4.1-27 | — | — |
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 3× in last 7d / 5× 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.
- 2026-09-10 09:23 UTCEPSS rescore
- 2026-09-05 15:21 UTCEPSS rescore
- 2026-09-04 04:59 UTCEPSS rescore
- 2026-08-30 01:14 UTCEPSS rescore
- 2026-08-27 11:34 UTCOSV refresh
- 2026-08-11 01:01 UTCOSV refresh
- 2026-08-08 16:30 UTCEPSS rescore
- 2026-08-05 19:11 UTCEPSS rescore
- 2026-08-04 15:03 UTCEPSS rescore
- 2026-08-03 10:27 UTCEPSS rescore
- 2026-07-26 13:30 UTCEG score recompute▲ 2.60
- 2026-07-26 01:14 UTCOSV refresh
- 2026-07-24 14:11 UTCEPSS rescore
- 2026-07-23 00:51 UTCEG score recompute
- 2026-07-23 00:30 UTCEG score recompute
- 2026-07-22 23:55 UTCEG score recompute
- 2026-07-22 21:35 UTCEG score recompute
- 2026-07-20 17:02 UTCEPSS rescore
- 2026-07-18 09:59 UTCEPSS rescore
- 2026-07-16 16:58 UTCEPSS rescore
- 2026-07-15 16:53 UTCEPSS rescore
- 2026-07-15 01:55 UTCEPSS rescore
- 2026-07-13 22:25 UTCEPSS rescore
- 2026-07-13 06:07 UTCEPSS rescore
- 2026-07-13 06:07 UTCEPSS rescore
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- 2026-07-11 08:22 UTCEPSS rescore
- 2026-07-09 19:03 UTCEPSS rescore
- 2026-07-08 19:45 UTCOSV refresh
- 2026-07-08 15:09 UTCEPSS rescore
- 2026-07-06 02:19 UTCEPSS rescore
- 2026-07-06 02:19 UTCEPSS rescore
- 2026-07-04 06:26 UTCEPSS rescore
- 2026-07-02 14:00 UTCEPSS rescore
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- 2026-06-29 14:02 UTCEPSS rescore
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- 2026-06-27 03:04 UTCEPSS rescore
- 2026-06-25 13:46 UTCEPSS rescore
- 2026-06-24 14:01 UTCEPSS rescore
- 2026-06-24 14:01 UTCEPSS rescore
- 2026-06-23 21:29 UTCEPSS rescore
- 2026-06-23 21:29 UTCEPSS rescore
- 2026-06-22 14:22 UTCEPSS rescore
- 2026-06-20 07:42 UTCOSV refresh
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-15 17:44 UTCEPSS rescore
- 2026-06-14 23:13 UTCEPSS rescore
- 2026-06-13 22:56 UTCEPSS rescore
- 2026-06-12 23:08 UTCEPSS rescore
- 2026-06-11 13:55 UTCEPSS rescore
- 2026-06-10 22:14 UTCEPSS rescore
- 2026-06-10 13:17 UTCEPSS rescore
- 2026-06-07 15:21 UTCEPSS rescore
- 2026-06-06 13:44 UTCEPSS rescore
- 2026-06-06 13:44 UTCEPSS rescore
- 2026-06-05 22:43 UTCEPSS rescore
- 2026-06-05 06:07 UTCEPSS rescore
- 2026-06-05 06:07 UTCEPSS rescore
- 2026-06-04 13:09 UTCEPSS rescore
- 2026-06-04 13:09 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 07:00 UTCEG score recompute
- 2026-05-31 07:00 UTCVendor advisory
- 2026-05-31 07:00 UTCGHSA enrichment
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-29 13:40 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-27 13:37 UTCEPSS rescore
- 2026-05-27 13:37 UTCEPSS rescore
- 2026-05-26 13:41 UTCEPSS rescore
- 2026-05-26 13:41 UTCEPSS rescore
- 2026-05-26 07:16 UTCEPSS rescore
- 2026-05-26 07:16 UTCEPSS rescore
- 2026-05-24 16:42 UTCEPSS rescore
- 2026-05-23 01:58 UTCOSV refresh
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-21 22:38 UTCEPSS rescore
- 2026-05-20 22:36 UTCEPSS rescore
- 2026-05-20 22:36 UTCEPSS rescore
- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Frequently asked(4)
What is CVE-2006-4484?
When was CVE-2006-4484 disclosed?
Is CVE-2006-4484 actively exploited?
How do I remediate CVE-2006-4484?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2006-4484
Is Your Infrastructure Affected by CVE-2006-4484?
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