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CVE-2003-0740

21
FAUCET Score

CVE-2003-0740 describes a privilege escalation vulnerability in Stunnel versions 4.00, and 3.24 and earlier, where a privileged file descriptor is leaked, allowing local users to hijack the Stunnel server. This vulnerability has a CVSS score of 4.6, indicating a medium severity, with a local attack vector, low attack complexity, and potential for partial confidentiality, integrity, and availability impact. While not listed on the KEV catalog, exploit code for this vulnerability is publicly available on ExploitDB, though there is minimal community discussion or media coverage surrounding it.

Impacted Technologies

VendorProductVersion(s)CPE
3.3CPE matchmatch criteria
cpe:2.3:a:stunnel:stunnel:3.3:*:*:*:*:*:*:*
3.4aCPE matchmatch criteria
cpe:2.3:a:stunnel:stunnel:3.4a:*:*:*:*:*:*:*
3.7CPE matchmatch criteria
cpe:2.3:a:stunnel:stunnel:3.7:*:*:*:*:*:*:*
3.8CPE matchmatch criteria
cpe:2.3:a:stunnel:stunnel:3.8:*:*:*:*:*:*:*
3.9CPE matchmatch criteria
cpe:2.3:a:stunnel:stunnel:3.9:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.6MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.70%
Probability of exploitation in next 30 days
EPSS Percentile
49.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-91 · Sep 5, 2003
This CVE's current EPSS score of 0.0070 is in the 84th percentile among its peer group of 3,049 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (8)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux AS (Advanced Server) version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux ES version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux WS version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 8.0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux Advanced Workstation 2.1
View patch

Vendor Advisories (1)

redhatCVE-2003-0740Important

security flaw

Sep 3, 2003

References

distro.conectiva.com.br / atualizacoes
marc.info
mandriva.com / security/advisories
redhat.com / support/errata/RHSA-2003-297.html