CVE-2022-41741: NGINX Open Source before versions 1.23.2 and 1.22.1, NGINX Open Source Subscription before versions R2 P1 and

This month

HIGH 7.0WATCHLISTUPGRADEUPGRADEMITIGATE

CVE-2022-41741 is a high-severity flaw (CVSS 7.0) affecting nginx, nginx ingress controller, fedora. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 corrupt NGINX worker memory, resulting in its termination or potential other impact using a specially crafted audio or video file. The issue affects only NGINX products that are built with the

Why this priority

High severity
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.0 (High)
Attack vector	Local
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.8% (top 43%)
CISA exploited list	No
Weakness	CWE-787
Published	2022-10-19
Last modified	2026-06-17

Publisher (CNA): F5 Networks · Vendor: debian · f5 · fedoraproject

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-10-19 22:15 UTCPublished CVE record published
2026-06-17 05:03 UTCUpdated Record last modified

f5 nginx UPGRADE

Affected: >= 1.1.3 and <= 1.22.0 · >= r22 and <= r27 · 1.23.0 · 1.23.1 · r1 · r2

Fixed in: newer than r27

Safe to downgrade to: a release before 1.1.3

1. Check installed version

apt-cache policy nginx || rpm -q nginx || nginx --version

2. UPGRADE to newer than r27 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade nginx

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade nginx

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 1.1.3 (Debian / Ubuntu)

apt-cache madison nginx sudo apt install nginx=<VERSION_BEFORE_1.1.3> sudo apt-mark hold nginx

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list nginx sudo dnf downgrade nginx-<VERSION_BEFORE_1.1.3> sudo dnf versionlock add nginx

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

f5 nginx ingress controller UPGRADE

Affected: >= 1.9.0 and <= 1.12.4 · >= 2.0.0 and <= 2.4.0

Fixed in: newer than 2.4.0

Safe to downgrade to: a release before 1.9.0

1. Check installed version

apt-cache policy nginx-ingress-controller || rpm -q nginx-ingress-controller || nginx-ingress-controller --version

2. UPGRADE to newer than 2.4.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade nginx-ingress-controller

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade nginx-ingress-controller

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 1.9.0 (Debian / Ubuntu)

apt-cache madison nginx-ingress-controller sudo apt install nginx-ingress-controller=<VERSION_BEFORE_1.9.0> sudo apt-mark hold nginx-ingress-controller

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list nginx-ingress-controller sudo dnf downgrade nginx-ingress-controller-<VERSION_BEFORE_1.9.0> sudo dnf versionlock add nginx-ingress-controller

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

fedoraproject fedora MITIGATE

Affected: 35 · 36 · 37

Fixed in: no fixed release known

Safe to downgrade to: a release before 35

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

debian debian linux MITIGATE

Affected: 10.0 · 11.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 10.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-41741?

nginx: upgrade to newer than r27; nginx ingress controller: upgrade to newer than 2.4.0; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-41741 being exploited?

CVE-2022-41741 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-41741 affect?

CVE-2022-41741 affects nginx, nginx ingress controller, fedora. Severity is high (CVSS 7.0). 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

How urgent is CVE-2022-41741?

Priority 44/100. High severity; On your watchlist

Software pages

nginx vulnerabilities · Debian vulnerabilities · F5 BIG-IP vulnerabilities

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References

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