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CVE-2006-4812: php Improper Control of Generation of Code

Modified
AliasesRHSA-2006:0708
Published 09-10-2006Last modified 07-08-2024

Vulnerability summary

CVE-2006-4812 is a high (CVSS 10.0) Improper Control of Generation of Code vulnerability in php. EPSS estimates a 20.38% chance of exploitation in the next 30 days, higher than 97.4% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Prioritiseweaponized exploit

Weaponized exploit (exploit-database, 05-10-2006)

Source freshness unavailable

How is this decided?
CVSS score
10.0/10
010
High · v2.0 (NVD)
EPSS score
20.38%
0%100%
High · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1exploit-database

Advisory lineage

Upstream 0 · Downstream 1 · Duplicates 1
RHSA-2006:0688CVE-2006-4170

Timeline

  1. 09-10-2006
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

Description

Integer overflow in PHP 5 up to 5.1.6 and 4 before 4.3.0 allows remote attackers to execute arbitrary code via an argument to the unserialize PHP function with a large value for the number of array elements, which triggers the overflow in the Zend Engine ecalloc function (Zend/zend_alloc.c).

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

20.38%

Chance of exploitation in the next 30 days

Percentile

97%

Versus all other CVEs

30-day change

No change 0.00 pp

From 20.38% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • exploit-databaseremotephpVerified

    PHP 3 < 5 - ZendEngine ECalloc Integer Overflow

    Maturity: weaponized

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.

Redhat8 products
  • php< 0:4.1.2-2.12
  • php-devel< 0:4.1.2-2.12
  • php-imap< 0:4.1.2-2.12
  • php-ldap< 0:4.1.2-2.12
  • php-manual< 0:4.1.2-2.12
Php1 product
  • phpEOL4.0 | 4.0.1 | 4.0.1:patch1 | 4.0.1:patch2 | 4.0.2 | 4.0.3 | 4.0.3:patch1 | 4.0.4 | 4.0.5 | 4.0.6 | 4.0.7 | 4.0.7:rc1 | 4.0.7:rc2 | 4.0.7:rc3 | 4.1.0 | 4.1.1 | 4.1.2 | 4.2 | 4.2.0 | 4.2.1 | 4.2.2 | 4.2.3 | 5.0:rc1 | 5.0:rc2 | 5.0:rc3 | 5.0.0 | 5.0.1 | 5.0.2 | 5.0.3 | 5.0.4 | 5.0.5 | 5.1.0 | 5.1.1 | 5.1.2 | 5.1.3 | 5.1.4 | 5.1.5 | 5.1.6

2 vendors · 9 products

References

34 links
Show all 34 references