Is CVE-2021-44540 in the CISA KEV catalog?

No. CVE-2021-44540 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-44540?

CVE-2021-44540 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2021-44540?

CVE-2021-44540 has an EPSS score of 1.30% (67th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-44540?

Upgrade privoxy on debian 11 to 3.0.32-2+deb11u1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2021-44540

HIGH

7.5

CVSS v3

NVD

Description

A vulnerability was found in Privoxy which was fixed in get_url_spec_param() by freeing memory of compiled pattern spec before bailing.

CWE-401Missing Release of Memory (Memory Leak)

How to fix

Remediation Available

privoxyDebian

Fixed in:3.0.32-2+deb11u1CVE-2021-44540

Fixed in:3.0.33-1CVE-2021-44540

privoxyUbuntu

Fixed in:3.0.26-5ubuntu0.3USN-5826-1

Fixed in:3.0.28-2ubuntu0.2USN-5826-1

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

1.30%probability of exploitation in 30 days

67thpercentile

Moderate risk: more likely to be exploited than 67% of all known CVEs.

References

Other references2

Related Vulnerabilities

Other CWE-401 (Missing Release of Memory (Memory Leak)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13934	High	7.5	64%	-	Fix
CVE-2016-6304	High	7.5	63%	-	Fix
CVE-2019-12265	Medium	5.3	55%	-	Fix
CVE-2001-0136	Medium	5.0	45%	-	-
CVE-2016-4232	High	7.5	36%	-	-
CVE-2001-0543	Medium	5.0	21%	-	-

Embed a live status badge for CVE-2021-44540

Markdown

[![CVE-2021-44540](https://tridentstack.com/cve/badge/CVE-2021-44540.svg)](https://tridentstack.com/cve/CVE-2021-44540)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-44540"><img src="https://tridentstack.com/cve/badge/CVE-2021-44540.svg" alt="CVE-2021-44540"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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 2024-11-21.