6.8

CVE-2009-4028: mysql Improper Input Validation

Modified
Published 30-11-2009Last modified 07-08-2024

Vulnerability summary

CVE-2009-4028 is a medium (CVSS 6.8) Improper Input Validation vulnerability in mysql. EPSS estimates a 1.77% chance of exploitation in the next 30 days, higher than 78% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Routine

Not severe (CVSS 6.8, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.8/10
010
Medium · v2.0 (NVD)
EPSS score
1.77%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 4 · Related 3

Timeline

  1. 30-11-2009
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

Description

The vio_verify_callback function in viosslfactories.c in MySQL 5.0.x before 5.0.88 and 5.1.x before 5.1.41, when OpenSSL is used, accepts a value of zero for the depth of X.509 certificates, which allows man-in-the-middle attackers to spoof arbitrary SSL-based MySQL servers via a crafted certificate, as demonstrated by a certificate presented by a server linked against the yaSSL library.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

1.77%

Chance of exploitation in the next 30 days

Percentile

78%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.77% 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
  • referenceUnverified

    Exploit Reference (lists.mysql.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Version check

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

Mysql1 product
  • mysql≤ 5.0.87 | 5.0.0 | 5.0.1 | 5.0.2 | 5.0.3 | 5.0.4 | 5.0.5 | 5.0.5.0.21 | 5.0.10 | 5.0.15 | 5.0.16 | 5.0.17 | 5.0.20 | 5.0.22.1.0.1 | 5.0.24 | 5.0.30 | 5.0.36 | 5.0.44 | 5.0.54 | 5.0.56 | 5.0.60 | 5.0.66 | 5.0.82 | 5.0.84 | 5.1.5 | 5.1.23 | 5.1.31 | 5.1.32 | 5.1.34 | 5.1.37
Oracle1 product
  • mysqlEOL5.0.0:alpha | 5.0.3:beta | 5.0.6 | 5.0.7 | 5.0.8 | 5.0.11 | 5.0.12 | 5.0.13 | 5.0.14 | 5.0.18 | 5.0.19 | 5.0.21 | 5.0.22 | 5.0.23 | 5.0.25 | 5.0.26 | 5.0.27 | 5.0.30:sp1 | 5.0.32 | 5.0.33 | 5.0.37 | 5.0.38 | 5.0.41 | 5.0.42 | 5.0.45 | 5.0.50 | 5.0.51 | 5.0.52 | 5.0.75 | 5.0.77 | 5.0.81 | 5.0.83 | 5.0.85 | 5.0.86 | 5.1 | 5.1.1 | 5.1.2 | 5.1.3 | 5.1.4 | 5.1.6 | 5.1.7 | 5.1.8 | 5.1.9 | 5.1.10 | 5.1.11 | 5.1.12 | 5.1.13 | 5.1.14 | 5.1.15 | 5.1.16 | 5.1.17 | 5.1.18 | 5.1.19 | 5.1.20 | 5.1.21 | 5.1.22 | 5.1.23:a | 5.1.24 | 5.1.25 | 5.1.26 | 5.1.27 | 5.1.28 | 5.1.29 | 5.1.30 | 5.1.31:sp1 | 5.1.33 | 5.1.34:sp1 | 5.1.35 | 5.1.36 | 5.1.37:sp1 | 5.1.38 | 5.1.39 | 5.1.40 | 5.1.40:sp1

2 vendors · 2 products

References

12 links
Show all 12 references