Is CVE-2002-1850 in the CISA KEV catalog?

No. CVE-2002-1850 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2002-1850?

CVE-2002-1850 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2002-1850?

CVE-2002-1850 has an EPSS score of 15.25% (96th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2002-1850?

Upgrade apache2 on debian 11 to 2.0.42-1 or later.

CVE & CISA-KEV Catalog

CVE-2002-1850

HIGHEPSS 96th pctl

7.5

CVSS v3

NVD

Description

mod_cgi in Apache 2.0.39 and 2.0.40 allows local users and possibly remote attackers to cause a denial of service (hang and memory consumption) by causing a CGI script to send a large amount of data to stderr, which results in a read/write deadlock between httpd and the CGI script.

CWE-667

How to fix

Remediation Available

apache2Debian

Fixed in:2.0.42-1CVE-2002-1850

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

15.25%probability of exploitation in 30 days

96thpercentile

Very high risk: more likely to be exploited than 96% of all known CVEs.

References

Patch4

Exploit2

Issue Tracking1

issues.apache.org

Mailing List1

marc.info

Other references1

cvs.apache.org

Related Vulnerabilities

Other CWE-667 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-10072	High	7.5	73%	-	Fix
CVE-2009-2699	High	7.5	14%	-	Fix
CVE-2004-0174	High	7.5	12%	-	-
CVE-2009-4272	High	7.5	11%	-	-
CVE-2020-24606	High	8.6	5.2%	-	Fix
CVE-2018-0228	High	8.6	3.6%	-	Fix

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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.