CVE-2022-41742: NGINX ngx_http_mp4_module vulnerability CVE-2022-41742
Noroxi assessment
Priority: Monitor (action score 28/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 1.1% (FIRST EPSS); higher than 67.6% of all records.
- Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
- Fixed version: nginx (AlmaLinux:9) 2:1.20.1-22.el9_6.2.alma.1; nginx-all-modules (AlmaLinux:9) 2:1.20.1-22.el9_6.2.alma.1; nginx-core (AlmaLinux:9) 2:1.20.1-22.el9_6.2.alma.1.
Low priority for now. Upgrade to nginx (AlmaLinux:9) 2:1.20.1-22.el9_6.2.alma.1; nginx-all-modules (AlmaLinux:9) 2:1.20.1-22.el9_6.2.alma.1; nginx-core (AlmaLinux:9) 2:1.20.1-22.el9_6.2.alma.1 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
NGINX Open Source before versions 1.23.2 and 1.22.1, NGINX Open Source Subscription before versions R2 P1 and R1 P1, and NGINX Plus before versions R27 P1 and R26 P1 have a vulnerability in the module ngx_http_mp4_module that might allow a local attacker to cause a worker process crash, or might result in worker process memory disclosure by using a specially crafted audio or video file. The issue affects only NGINX products that are built with the module ngx_http_mp4_module, when the mp4 directive is used in the configuration file. Further, the attack is possible only if an attacker can trigger processing of a specially crafted audio or video file with the module ngx_http_mp4_module.
- Published
- Oct 19, 2022
- Updated
- Jun 17, 2026
- EPSS
- 1.1% · 67th percentile
- CWE
- CWE-787
Report tools
Action score
28
Monitor
Low priority for now.
- CVSS
- 28 / 40 · 7.1 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.1%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 7.1
- CNA · f5
- 7.1
- agree
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| f5 | nginx | cpe:2.3:a:f5:nginx |
| f5 | nginx ingress controller | cpe:2.3:a:f5:nginx_ingress_controller |
| fedoraproject | fedora | cpe:2.3:o:fedoraproject:fedora |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
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Run a port scanAffected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- f5 nginx1.1.3 and later · up to 1.22.0 inclusive
- f5 nginxr22 and later · up to r27 inclusive
- f5 nginx1.23.0
- f5 nginx1.23.1
- f5 nginxr1
- f5 nginxr2
Versions reported by the vendor
Affected version ranges reported by the assigning authority (f5). Independent of NVD's CPE analysis and usually ahead of it.
F5 NGINX
- Mainline and later · before 1.23.2affected
- Stable and later · before 1.22.1affected
F5 NGINX Open Source Subscription
- R2 and later · before R2 P1affected
- R1 and later · before R1 P1affected
F5 NGINX Plus
- R27 and later · before R27-p1affected
- R1 and later · before R26-p1affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| AlmaLinux:9 | nginx | before 2:1.20.1-22.el9_6.2.alma.1 | 2:1.20.1-22.el9_6.2.alma.1 |
| AlmaLinux:9 | nginx-all-modules | before 2:1.20.1-22.el9_6.2.alma.1 | 2:1.20.1-22.el9_6.2.alma.1 |
| AlmaLinux:9 | nginx-core | before 2:1.20.1-22.el9_6.2.alma.1 | 2:1.20.1-22.el9_6.2.alma.1 |
| AlmaLinux:9 | nginx-filesystem | before 2:1.20.1-22.el9_6.2.alma.1 | 2:1.20.1-22.el9_6.2.alma.1 |
| AlmaLinux:9 | nginx-mod-devel | before 2:1.20.1-22.el9_6.2.alma.1 | 2:1.20.1-22.el9_6.2.alma.1 |
| AlmaLinux:9 | nginx-mod-http-image-filter | before 2:1.20.1-22.el9_6.2.alma.1 | 2:1.20.1-22.el9_6.2.alma.1 |
| AlmaLinux:9 | nginx-mod-http-perl | before 2:1.20.1-22.el9_6.2.alma.1 | 2:1.20.1-22.el9_6.2.alma.1 |
| AlmaLinux:9 | nginx-mod-http-xslt-filter | before 2:1.20.1-22.el9_6.2.alma.1 | 2:1.20.1-22.el9_6.2.alma.1 |
| AlmaLinux:9 | nginx-mod-mail | before 2:1.20.1-22.el9_6.2.alma.1 | 2:1.20.1-22.el9_6.2.alma.1 |
| AlmaLinux:9 | nginx-mod-stream | before 2:1.20.1-22.el9_6.2.alma.1 | 2:1.20.1-22.el9_6.2.alma.1 |
| Alpine:v3.16 | nginx | from 1.1.3 · before 1.22.1-r0 | 1.22.1-r0 |
| Debian:10 | nginx | before 1.14.2-2+deb10u5 | 1.14.2-2+deb10u5 |
| Debian:11 | nginx | before 1.18.0-6.1+deb11u3 | 1.18.0-6.1+deb11u3 |
| Debian:12 | nginx | before 1.22.1-1 | 1.22.1-1 |
| openSUSE:Leap 15.4 | nginx | before 1.19.8-150300.3.12.1 | 1.19.8-150300.3.12.1 |
| openSUSE:Leap 15.4 | nginx | before 1.21.5-150400.3.3.1 | 1.21.5-150400.3.3.1 |
| Red Hat:enterprise_linux:9::appstream | nginx | before 2:1.20.1-22.el9_6.2 | 2:1.20.1-22.el9_6.2 |
| Red Hat:enterprise_linux:9::appstream | nginx-all-modules | before 2:1.20.1-22.el9_6.2 | 2:1.20.1-22.el9_6.2 |
| Red Hat:enterprise_linux:9::appstream | nginx-core | before 2:1.20.1-22.el9_6.2 | 2:1.20.1-22.el9_6.2 |
| Red Hat:enterprise_linux:9::appstream | nginx-core-debuginfo | before 2:1.20.1-22.el9_6.2 | 2:1.20.1-22.el9_6.2 |
| Red Hat:enterprise_linux:9::appstream | nginx-debuginfo | before 2:1.20.1-22.el9_6.2 | 2:1.20.1-22.el9_6.2 |
| Red Hat:enterprise_linux:9::appstream | nginx-debugsource | before 2:1.20.1-22.el9_6.2 | 2:1.20.1-22.el9_6.2 |
| Red Hat:enterprise_linux:9::appstream | nginx-filesystem | before 2:1.20.1-22.el9_6.2 | 2:1.20.1-22.el9_6.2 |
| Red Hat:enterprise_linux:9::appstream | nginx-mod-http-image-filter | before 2:1.20.1-22.el9_6.2 | 2:1.20.1-22.el9_6.2 |
+51
Same product
f5: all recordsOther highest-scoring records for the same primary product.
- CVE-2013-2028The ngx_http_parse_chunked function in http/ngx_http_parse.c in nginx 1.3.9 through 1.4.0 allows remote attackers to cause a denial of servi56Plan
- CVE-2016-0742The resolver in nginx before 1.8.1 and 1.9.x before 1.9.10 allows remote attackers to cause a denial of service (invalid pointer dereference55Plan
- CVE-2009-2629Buffer underflow in src/http/ngx_http_parse.c in nginx 0.1.0 through 0.5.37, 0.6.x before 0.6.39, 0.7.x before 0.7.62, and 0.8.x before 0.8.53Plan
Published before and after this one in the same product
- ← EarlierCVE-2021-3618Mar 23, 2022 · ALPACA is an application layer protocol content confusion attack, exploiting TLS servers implementing different protocols but using compatib30Monitor
- ← EarlierCVE-2022-41741Oct 19, 2022 · NGINX ngx_http_mp4_module vulnerability CVE-2022-4174131Monitor
- Later →CVE-2025-23419Feb 5, 2025 · TLS Session Resumption Vulnerability22Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| almalinux:nginx | 2:1.20.1-22.el9_6.2.alma.1 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:nginx-all-modules | 2:1.20.1-22.el9_6.2.alma.1 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:nginx-core | 2:1.20.1-22.el9_6.2.alma.1 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:nginx-filesystem | 2:1.20.1-22.el9_6.2.alma.1 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:nginx-mod-devel | 2:1.20.1-22.el9_6.2.alma.1 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:nginx-mod-http-image-filter | 2:1.20.1-22.el9_6.2.alma.1 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:nginx-mod-http-perl | 2:1.20.1-22.el9_6.2.alma.1 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:nginx-mod-http-xslt-filter | 2:1.20.1-22.el9_6.2.alma.1 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:nginx-mod-mail | 2:1.20.1-22.el9_6.2.alma.1 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:nginx-mod-stream | 2:1.20.1-22.el9_6.2.alma.1 · AlmaLinux:9 | Package registry (OSV) |
| alpine:nginx | 1.22.1-r0 · Alpine:v3.16 | Package registry (OSV) |
| debian:nginx | 1.22.1-1 · Debian:12 | Package registry (OSV) |
| opensuse:nginx | 1.19.8-150300.3.12.1 · openSUSE:Leap 15.4 | Package registry (OSV) |
| red hat:nginx | 2:1.20.1-22.el9_6.2 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:nginx-all-modules | 2:1.20.1-22.el9_6.2 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:nginx-core | 2:1.20.1-22.el9_6.2 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:nginx-core-debuginfo | 2:1.20.1-22.el9_6.2 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:nginx-debuginfo | 2:1.20.1-22.el9_6.2 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:nginx-debugsource | 2:1.20.1-22.el9_6.2 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:nginx-filesystem | 2:1.20.1-22.el9_6.2 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:nginx-mod-http-image-filter | 2:1.20.1-22.el9_6.2 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:nginx-mod-http-image-filter-debuginfo | 2:1.20.1-22.el9_6.2 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:nginx-mod-http-perl | 2:1.20.1-22.el9_6.2 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:nginx-mod-http-perl-debuginfo | 2:1.20.1-22.el9_6.2 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:nginx-mod-http-xslt-filter | 2:1.20.1-22.el9_6.2 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| rocky linux:nginx | 2:1.20.1-22.el9_6.2 · Rocky Linux:9 | Package registry (OSV) |
| suse:nginx | 1.19.8-150300.3.12.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-ESPOS | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
No history yet (it accumulates with the daily EPSS job).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-787 · Out-of-bounds WriteCVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (6 more)Show less
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BPRVYA4FS34VWB4FEFYNAD7Z2LFCJVEI/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FD6M3PVVKO35WLAA7GLDBS6TEQ26SM64/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WBORRVG7VVXYOAIAD64ZHES2U2VIUKFQ/
- security.netapp.com/advisory/ntap-20230120-0005/
- support.f5.com/csp/article/K28112382
- www.debian.org/security/2022/dsa-5281
Vendor advisories and official records. Exploit/PoC links are deliberately left out.