CVE-2020-11984

83

FAUCET Score

CVE-2020-11984 is a critical vulnerability affecting Apache HTTP Server versions 2.4.32 to 2.4.44, specifically within the mod_proxy_uwsgi module, impacting various distributions like Canonical, Debian, and Oracle. With a CVSS score of 9.8, it allows for information disclosure and potential Remote Code Execution (RCE) via a network-based attack with low complexity and no user interaction, leading to complete compromise of confidentiality, integrity, and availability. While not currently listed on the KEV catalog or having public Metasploit or ExploitDB modules, Nuclei templates exist for detecting RCE, and it has garnered some community discussion and media coverage.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		>= 2.4.32, <= 2.4.43CPE matchmatch criteria	cpe:2.3:a:apache:http_server::::::::
		Range not provided by sourceCPE matchmatch criteria	cpe:2.3:a:netapp:clustered_data_ontap:-:::::::*
		16.04CPE matchmatch criteria	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::
		18.04CPE matchmatch criteria	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
		20.04CPE matchmatch criteria	cpe:2.3:o:canonical:ubuntu_linux:20.04::::lts:::

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

Exploitability Score

3.9

Impact Score

5.9

CvssVersion

3.1

Exploit Intelligence

EPSS Score

90.04%

Probability of exploitation in next 30 days

EPSS Percentile

99.8%

Percentile rank of EPSS score among Peer Group

As of 2026-07-26

Model: v2026.06.15

Nuclei: CVE-2020-11984 · Jun 22, 2025

This CVE's current EPSS score of 0.9004 is in the 99th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (35)

apachepatch availablevia llm_extracted

Fixed in: 2.4

microsoftpatch availablevia msrc

Product: 19037-16820Fixed in: 2.4.46-5

microsoftpatch availablevia msrc

Product: cm1 httpd 2.4.46-5 on CBL Mariner 1.0Fixed in: 2.4.46-5

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-apr-util-0:1.6.1-75.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-brotli-0:1.0.6-38.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-curl-0:7.64.1-44.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-httpd-0:2.4.37-64.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-jansson-0:2.11-53.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-mod_cluster-native-0:1.3.14-11.Final_redhat_2.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-mod_http2-0:1.15.7-11.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-mod_jk-0:1.2.48-10.redhat_1.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-mod_md-1:2.0.8-30.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-mod_security-0:2.9.2-57.GA.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-nghttp2-0:1.39.2-34.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-openssl-1:1.1.1c-32.jbcs.el6

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-apr-0:1.6.3-104.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-apr-util-0:1.6.1-75.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-brotli-0:1.0.6-38.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-curl-0:7.64.1-44.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-httpd-0:2.4.37-64.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-jansson-0:2.11-53.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-mod_cluster-native-0:1.3.14-11.Final_redhat_2.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-mod_http2-0:1.15.7-11.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-mod_jk-0:1.2.48-10.redhat_1.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-mod_md-1:2.0.8-30.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-mod_security-0:2.9.2-57.GA.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-nghttp2-0:1.39.2-34.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-openssl-1:1.1.1c-32.jbcs.el7

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 7Fixed in: jbcs-httpd24-openssl-chil-0:1.0.0-1.jbcs.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8Fixed in: httpd:2.4-8040020210127115317.9f9e2e7e

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: httpd24-httpd-0:2.4.34-22.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSFixed in: httpd24-httpd-0:2.4.34-22.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUSFixed in: httpd24-httpd-0:2.4.34-22.el7

redhatpatch availablevia redhat_api

Product: Text-Only JBCSFixed in: httpd

redhatpatch availablevia redhat_api

Product: JBoss Core Services on RHEL 6Fixed in: jbcs-httpd24-apr-0:1.6.3-104.jbcs.el6

Vendor Advisories (5)

apachellm-apache-f398f8ed28802aa3LOW

Apache HTTP Server 2.4 vulnerabilities - The Apache HTTP Server Project

apachellm-apache-a7a91ec4c0e9421dHIGH

Apache HTTP Server 2.4 vulnerabilities - The Apache HTTP Server Project

microsoft2020-Aug/CVE-2020-11984Critical

Apache HTTP server 2.4.32 to 2.4.44 mod_proxy_uwsgi info disclosure and possible RCE

redhatCVE-2020-11984Moderate

httpd: mod_proxy_uwsgi buffer overflow

apachellm-apache-684e4d0003611bd4LOW

Apache HTTP Server 2.4 vulnerabilities - The Apache HTTP Server Project

References

lists.opensuse.org / opensuse-security-announce/2020-08/msg00068.html

Mailing ListThird Party Advisory

lists.opensuse.org / opensuse-security-announce/2020-08/msg00071.html

Mailing ListThird Party Advisory

packetstormsecurity.com / files/159009/Apache2-mod_proxy_uwsgi-Incorrect-Request-Handling.html

ExploitThird Party AdvisoryVDB Entry

httpd.apache.org / security/vulnerabilities_24.html

Vendor Advisory

lists.apache.org / thread.html/r03ee478b3dda3e381fd6189366fa7af97c980d2f602846eef935277d%40%3Ccvs.httpd.apache.org%3E

lists.apache.org / thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E

lists.apache.org / thread.html/r09bb998baee74a2c316446bd1a41ae7f8d7049d09d9ff991471e8775%40%3Ccvs.httpd.apache.org%3E

lists.apache.org / thread.html/r2c6083f6a2027914a0f5b54e2a1f4fa98c03f8693b58460911818255%40%3Ccvs.httpd.apache.org%3E

lists.apache.org / thread.html/r34753590ae8e3f2b6af689af4fe84269b592f5fda9f3244fd9abbce8%40%3Ccvs.httpd.apache.org%3E

lists.apache.org / thread.html/r3c5c3104813c1c5508b55564b66546933079250a46ce50eee90b2e36%40%3Ccvs.httpd.apache.org%3E

lists.apache.org / thread.html/r5debe8f82728a00a4a68bc904dd6c35423bdfc8d601cfb4579f38bf1%40%3Cdev.httpd.apache.org%3E

lists.apache.org / thread.html/r623de9b2b2433a87f3f3a15900419fc9c00c77b26936dfea4060f672%40%3Cdev.httpd.apache.org%3E

lists.apache.org / thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E

lists.apache.org / thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E

lists.apache.org / thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E

lists.apache.org / thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E

lists.apache.org / thread.html/rf71eb428714374a6f9ad68952e23611ec7807b029fd6a1b4f5f732d9%40%3Ccvs.httpd.apache.org%3E

lists.debian.org / debian-lts-announce/2020/09/msg00001.html

Mailing ListThird Party Advisory

lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/A2RN46PRBJE7E7OPD4YZX5SVWV5QKGV5

lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/HYVYE2ZERFXDV6RMKK3I5SDSDQLPSEIQ

security.gentoo.org / glsa/202008-04

Third Party Advisory

security.netapp.com / advisory/ntap-20200814-0005

Third Party Advisory

usn.ubuntu.com / 4458-1

Third Party Advisory

debian.org / security/2020/dsa-4757

Third Party Advisory

oracle.com / security-alerts/cpujan2021.html

Third Party Advisory

oracle.com / security-alerts/cpuoct2020.html

Third Party Advisory

openwall.com / lists/oss-security/2020/08/08/1

Mailing ListThird Party Advisory

openwall.com / lists/oss-security/2020/08/08/10

Mailing ListThird Party Advisory

openwall.com / lists/oss-security/2020/08/08/8

Mailing ListThird Party Advisory

openwall.com / lists/oss-security/2020/08/08/9

Mailing ListThird Party Advisory

openwall.com / lists/oss-security/2020/08/10/5

Mailing ListVendor Advisory

openwall.com / lists/oss-security/2020/08/17/2

Mailing ListThird Party Advisory