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CVE-2004-0627

78
FAUCET Score

CVE-2004-0627 describes an authentication bypass vulnerability in MySQL versions 4.1.x before 4.1.3 and 5.0. This flaw allows remote attackers to bypass authentication by providing a zero-length scrambled string to the check_scramble_323 function. With a CVSS score of 10.0, this vulnerability is critical, requiring no authentication or complex attack steps, and grants complete compromise of confidentiality, integrity, and availability. While not listed on the KEV catalog, an exploit is publicly available on ExploitDB, and the vulnerability has garnered significant community discussion, indicating potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
4.1.0CPE matchmatch criteria
cpe:2.3:a:mysql:mysql:4.1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
69.65%
Probability of exploitation in next 30 days
EPSS Percentile
99.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-311 · Jul 10, 2004
This CVE's current EPSS score of 0.6965 is in the 99th percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2004-0627Important

MySQL: check_scramble_323 authentication bypass and buffer overflow

Jul 5, 2004

References

archives.neohapsis.com / archives/vulnwatch/2004-q3/0001.html
PatchVendor Advisory
marc.info
kb.cert.org / vuls/id/184030
PatchThird Party AdvisoryUS Government Resource