Is CVE-2020-26154 in the CISA KEV catalog?

No. CVE-2020-26154 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-26154?

CVE-2020-26154 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2020-26154?

CVE-2020-26154 has an EPSS score of 3.57% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-26154?

Upgrade libproxy on debian 11 to 0.4.15-15 or later. Fixes are available for 29 affected products.

CVE & CISA-KEV Catalog

CVE-2020-26154

CRITICALEPSS 88th pctl

9.8

CVSS v3

NVD

Description

url.cpp in libproxy through 0.4.15 is prone to a buffer overflow when PAC is enabled, as demonstrated by a large PAC file that is delivered without a Content-length header.

CWE-120Classic Buffer Overflow

How to fix

Remediation Available

libproxyDebian

Fixed in:0.4.15-15CVE-2020-26154

libproxyRocky

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

libproxyRed Hat / RHEL

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

libproxy-binRed Hat / RHEL

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

libproxy-binRocky

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

libproxy-bin-debuginfoRed Hat / RHEL

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

libproxy-bin-debuginfoRocky

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

libproxy-debuginfoRed Hat / RHEL

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

libproxy-debuginfoRocky

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

libproxy-debugsourceRed Hat / RHEL

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

libproxy-debugsourceRocky

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

libproxy-develRed Hat / RHEL

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

libproxy-develRocky

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

libproxy-gnomeRocky

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

libproxy-gnomeRed Hat / RHEL

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

libproxy-gnome-debuginfoRocky

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

libproxy-gnome-debuginfoRed Hat / RHEL

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

libproxy-networkmanagerRed Hat / RHEL

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

libproxy-networkmanagerRocky

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

libproxy-networkmanager-debuginfoRed Hat / RHEL

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

libproxy-networkmanager-debuginfoRocky

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

libproxy-webkitgtk4Red Hat / RHEL

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

libproxy-webkitgtk4Rocky

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

libproxy-webkitgtk4-debuginfoRocky

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

libproxy-webkitgtk4-debuginfoRed Hat / RHEL

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

python3-libproxyRocky

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

python3-libproxyRed Hat / RHEL

Fixed in:0:0.4.15-5.5.el8_10RHEA-2024:8852

Fixed in:0:0.4.15-5.4.el8_8RHSA-2024:6205

libproxyUbuntu

Fixed in:0.4.11-5ubuntu1.2USN-4673-1

Fixed in:0.4.15-1ubuntu0.2USN-4673-1

Fixed in:0.4.15-10ubuntu1.2USN-4673-1

libproxy1v5Ubuntu

Fixed in:0.4.11-5ubuntu1.2USN-4673-1

Fixed in:0.4.15-1ubuntu0.2USN-4673-1

Fixed in:0.4.15-10ubuntu1.2USN-4673-1

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

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

3.57%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Third-Party Advisory6

Other references2

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0195	Medium	6.8	100%	-	Fix
CVE-2017-7269	Critical	9.8	100%	KEV	-
CVE-2019-11043	High	8.7	99%	KEV + Ransom	Fix
CVE-2011-4862	High	10.0	95%	-	Fix
CVE-2007-5659	High	7.8	94%	KEV	Fix
CVE-2022-3786	High	7.5	91%	-	Fix

Embed a live status badge for CVE-2020-26154

Markdown

[![CVE-2020-26154](https://tridentstack.com/cve/badge/CVE-2020-26154.svg)](https://tridentstack.com/cve/CVE-2020-26154)

HTML

<a href="https://tridentstack.com/cve/CVE-2020-26154"><img src="https://tridentstack.com/cve/badge/CVE-2020-26154.svg" alt="CVE-2020-26154"></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.