LOW
CVE-2002-1563
NVD-CWE-OtherPublished: May 12, 2003· Updated: Jun 16, 2026
1.2
CVSS v3.1
Official Description
stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions that cause an inconsistency in the child counter.
Technical Analysis
CVE-2002-1563 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityHigh
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityNone
IntegrityNone
AvailabilityP
AV:L/AC:H/Au:N/C:N/I:N/A:P
Affected Vendors & Products
stunnel1 product(s)
stunnel
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (16)
→
http://www.redhat.com/support/errata/RHSA-2003-221.htmlPatch · Vendor Advisory
→
http://www.redhat.com/support/errata/RHSA-2003-221.htmlPatch · Vendor Advisory
Quick Facts
CVE IDCVE-2002-1563
CVSS Score1.2 / 10
SeverityLOW
WeaknessNVD-CWE-Other
CISA KEVNo
Affected1 vendor(s)
PublishedMay 12, 2003
Related CVEs (NVD-CWE-Other)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2002-1563 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.