CVE-2020-11984
CriticalExploitedApache HTTP server 2.4.32 to 2.4.44 mod_proxy_uwsgi info disclosure and possible RCE
Published Dec 4, 2020 · Updated Sep 23, 2026 · Also known as ALPINE-CVE-2020-11984, BIT-apache-2020-11984, DEBIAN-CVE-2020-11984, DLA-2362-1, DSA-4757-1, SUSE-SU-2020:2311-1, SUSE-SU-2020:2344-1, TR-20-1010, UBUNTU-CVE-2020-11984, USN-4458-1, USN-5054-1, USN-5054-2
Key Facts
Patch immediately- CVE-2020-11984 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting HTTP Server (Apache), Clustered Data Ontap (Netapp), Communications Element Manager (Oracle) and 22 more products.
- It is exploited in the wild, listed in Industry KEV feed since Feb 22, 2022. No public exploit code is known.
- EPSS estimates a 90% probability of exploitation in the next 30 days.
- Fixed versions are available, including apache 2.4.44, HTTP Server <=2.4.43, apache2 2.4.18-2ubuntu3.17.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
90%
Higher than 99.7% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
None known
Get the full CVE-2020-11984 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
Apache HTTP server 2.4.32 to 2.4.44 mod_proxy_uwsgi info disclosure and possible RCE
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Feb 22, 2022 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
200 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| HTTP ServerApache | >= 2.4.32 to 2.4.44 | 2.4.43 |
| Clustered Data OntapNetapp | See advisory | n/a |
| Communications Element ManagerOracle | See advisory | 8.2.2 |
| Communications Session Report ManagerOracle | See advisory | 8.2.2 |
| Communications Session Route ManagerOracle | See advisory | 8.2.2 |
Patched Releases
apache
2.4.44
HTTP Server
<=2.4.43
apache2
2.4.18-2ubuntu3.17, 2.4.29-1ubuntu4.14, 2.4.33-3.33.1, 2.4.33-lp151.8.15.1, 2.4.38-3+deb10u4, 2.4.41-4ubuntu3.1, 2.4.43-3.5.1, 2.4.43-lp152.2.3.1, 2.4.46-1, 2.4.46-r0
apache2-devel
2.4.33-3.33.1, 2.4.33-lp151.8.15.1, 2.4.43-3.5.1, 2.4.43-lp152.2.3.1
apache2-doc
2.4.33-3.33.1, 2.4.33-lp151.8.15.1, 2.4.43-3.5.1, 2.4.43-lp152.2.3.1
apache2-event
2.4.33-lp151.8.15.1, 2.4.43-lp152.2.3.1
apache2-example-pages
2.4.33-lp151.8.15.1, 2.4.43-lp152.2.3.1
apache2-prefork
2.4.33-3.33.1, 2.4.33-lp151.8.15.1, 2.4.43-3.5.1, 2.4.43-lp152.2.3.1
apache2-utils
2.4.33-3.33.1, 2.4.33-lp151.8.15.1, 2.4.43-3.5.1, 2.4.43-lp152.2.3.1
apache2-worker
2.4.33-3.33.1, 2.4.33-lp151.8.15.1, 2.4.43-3.5.1, 2.4.43-lp152.2.3.1
httpd
2.4.37-39.0.1.module+el8.4.0+20024+b87b2deb, 2.4.37-39.module+el8.4.0+571+fd70afb1, 2.4.46-1.amzn2, 2.4.46-1.ph1, 2.4.46-1.ph2, 2.4.46-1.ph3, 2.4.46-5
httpd-devel
2.4.37-39.0.1.module+el8.4.0+20024+b87b2deb, 2.4.46-1.amzn2
httpd-filesystem
2.4.37-39.0.1.module+el8.4.0+20024+b87b2deb, 2.4.46-1.amzn2
httpd-manual
2.4.37-39.0.1.module+el8.4.0+20024+b87b2deb, 2.4.46-1.amzn2
httpd-tools
2.4.37-39.0.1.module+el8.4.0+20024+b87b2deb, 2.4.46-1.amzn2
httpd:2.4
8040020210127115317.9f9e2e7e
httpd24
2.4.46-1.90.amzn1
httpd24-devel
2.4.46-1.90.amzn1
httpd24-httpd
0:2.4.34-22.el7
httpd24-manual
2.4.46-1.90.amzn1
httpd24-tools
2.4.46-1.90.amzn1
jbcs-httpd24-apr
0:1.6.3-104.jbcs.el6, 0:1.6.3-104.jbcs.el7
jbcs-httpd24-apr-util
0:1.6.1-75.jbcs.el6, 0:1.6.1-75.jbcs.el7
jbcs-httpd24-brotli
0:1.0.6-38.jbcs.el6, 0:1.0.6-38.jbcs.el7
jbcs-httpd24-curl
0:7.64.1-44.jbcs.el6, 0:7.64.1-44.jbcs.el7
Timeline
Publicly disclosed
Dec 4, 2020
Added to Industry KEV feed
Feb 22, 2022
Last updated
Sep 23, 2026
Weakness Type
- CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
- CWE-770 Allocation of Resources Without Limits or Throttling
References
- advisoryopenSUSE-SU-2020:1285
- advisoryopenSUSE-SU-2020:1293
- advisoryRHBA-2020:5280
- advisoryRHSA-2020:4383
- advisoryRHSA-2020:4384
FAQ
Common Questions.
Apache HTTP server 2.4.32 to 2.4.44 mod_proxy_uwsgi info disclosure and possible RCE
Affected: HTTP Server (Apache) versions >= 2.4.32 to 2.4.44; Clustered Data Ontap (Netapp); Communications Element Manager (Oracle), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Feb 22, 2022.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including apache 2.4.44, HTTP Server <=2.4.43, apache2 2.4.18-2ubuntu3.17.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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