Is CVE-2002-1563 in the CISA KEV catalog?

No. CVE-2002-1563 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2002-1563?

CVE-2002-1563 has a CVSS v2 base score of 1.2 (LOW).

What is the EPSS score for CVE-2002-1563?

CVE-2002-1563 has an EPSS score of 0.34% (26th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2002-1563?

Upgrade stunnel on debian unstable to 2:3.24-1 or later.

CVE & CISA-KEV Catalog

CVE-2002-1563

LOW

1.2

CVSS v2

NVD

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.

How to fix

Remediation Available

stunnelDebian

Fixed in:2:3.24-1CVE-2002-1563

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

0.34%probability of exploitation in 30 days

26thpercentile

Low risk: more likely to be exploited than 26% of all known CVEs.

References

Patch1

redhat.com

Other references7

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.