4.6

CVE-2006-4020: php

Modified
Published 08-08-2006Last modified 07-08-2024
Some data may be incomplete
  • 1 reference with an unsupported link type was hidden.

Vulnerability summary

CVE-2006-4020 is a medium (CVSS 4.6) vulnerability in php. EPSS estimates a 2.01% chance of exploitation in the next 30 days, higher than 80.8% of scored vulnerabilities. 4 public exploits are recorded.

Priority
Prioritiseweaponized exploit

Weaponized exploit (exploit-database, 16-08-2006)

Source freshness unavailable

How is this decided?
CVSS score
4.6/10
010
Medium · v2.0 (NVD)
EPSS score
2.01%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits4reference, exploit-database

Advisory lineage

Upstream 0 · Downstream 2
RHSA-2006:0669RHSA-2006:0688

Timeline

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

Description

scanf.c in PHP 5.1.4 and earlier, and 4.4.3 and earlier, allows context-dependent attackers to execute arbitrary code via a sscanf PHP function call that performs argument swapping, which increments an index past the end of an array and triggers a buffer over-read.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

2.01%

Chance of exploitation in the next 30 days

Percentile

81%

Versus all other CVEs

30-day change

No change 0.00 pp

From 2.01% 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

4 found
  • referenceUnverified

    Exploit Reference (plain-text.info)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (bugs.php.net)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (securityfocus.com)

    Maturity: unknown

Show all 4 exploits
  • exploit-databaselocallinuxVerified

    PHP 4.4.3/5.1.4 - 'sscanf' Local Buffer Overflow

    Maturity: weaponized

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.

Php1 product
  • phpEOL4.0 | 4.0:beta_4_patch1 | 4.0:beta1 | 4.0:beta2 | 4.0:beta3 | 4.0:beta4 | 4.0:rc1 | 4.0:rc2 | 4.0.0 | 4.0.1 | 4.0.1:patch1 | 4.0.1:patch2 | 4.0.2 | 4.0.3 | 4.0.3:patch1 | 4.0.4 | 4.0.4:patch1 | 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 | 4.3.0 | 4.3.1 | 4.3.2 | 4.3.3 | 4.3.4 | 4.3.5 | 4.3.6 | 4.3.7 | 4.3.8 | 4.3.9 | 4.3.10 | 4.3.11 | 4.4.0 | 4.4.1 | 4.4.2 | 4.4.3 | 5.0:rc1 | 5.0:rc2 | 5.0:rc3 | 5.0.0 | 5.0.0:beta1 | 5.0.0:beta2 | 5.0.0:beta3 | 5.0.0:beta4 | 5.0.0:rc1 | 5.0.0:rc2 | 5.0.0:rc3 | 5.0.1 | 5.0.2 | 5.0.3 | 5.0.4 | 5.0.5 | 5.1.0 | 5.1.1 | 5.1.2 | 5.1.4

1 vendor · 1 product

References

38 links
Show all 38 references