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CVE-2022-25139

njs through 0.7.0, used in NGINX, was discovered to contain a heap use-after-free in...

9.8 CriticalFix available

njs through 0.7.0, used in NGINX, was discovered to contain a heap use-after-free in njs_await_fulfilled.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

1.63%Up 0.7 points since Feb 15, 2022
90%50%10%1%

What each source reports

NVD Score used 9.8

njs through 0.7.0, used in NGINX, was discovered to contain a heap use-after-free in njs_await_fulfilled.

Record
CVE-2022-25139
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-416
Updated
2026-11-02
CVE List No score

njs through 0.7.0, used in NGINX, was discovered to contain a heap use-after-free in njs_await_fulfilled.

Record
CVE-2022-25139
Updated
2026-11-02
EUVDEUVD-2022-29882 No score

njs through 0.7.0, used in NGINX, was discovered to contain a heap use-after-free in njs_await_fulfilled.

Record
EUVD-2022-29882
Updated
2026-11-03
GitHub AdvisoriesGHSA-7f37-mh9r-45hr 9.8

njs through 0.7.0, used in NGINX, was discovered to contain a heap use-after-free in...

njs through 0.7.0, used in NGINX, was discovered to contain a heap use-after-free in njs_await_fulfilled.

Record
GHSA-7f37-mh9r-45hr
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-416
Updated
2026-11-02
OSVALPINE-CVE-2022-25139 9.8

njs through 0.7.0, used in NGINX, was discovered to contain a heap use-after-free in njs_await_fulfilled.

Record
ALPINE-CVE-2022-25139
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-03
OSVBELL-CVE-2022-25139 9.8

CVE-2022-25139 does not affect BellSoft software

Record
BELL-CVE-2022-25139
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSV No score

njs through 0.7.0, used in NGINX, was discovered to contain a heap use-after-free in njs_await_fulfilled.

Record
CVE-2022-25139
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
nginx
Alpine:v3.16
before 1.20.2-r2
1.20.2-r2
nginx
Alpine:v3.17
before 1.20.2-r2
1.20.2-r2
nginx
Alpine:v3.18
before 1.20.2-r2
1.20.2-r2
nginx
Alpine:v3.19
before 1.20.2-r2
1.20.2-r2
nginx
Alpine:v3.20
before 1.20.2-r2
1.20.2-r2
nginx
Alpine:v3.21
before 1.20.2-r2
1.20.2-r2
nginx
Alpine:v3.22
before 1.20.2-r2
1.20.2-r2
nginx
Alpine:v3.23
before 1.20.2-r2
1.20.2-r2
nginx
Alpine:v3.24
before 1.20.2-r2
1.20.2-r2
njs
Alpine:v3.15
before 0.7.3-r0
0.7.3-r0
Show 9 moreShow less
Affected packages
PackageAffectedFixed
njs
Alpine:v3.16
before 0.7.3-r0
0.7.3-r0
njs
Alpine:v3.17
before 0.7.3-r0
0.7.3-r0
njs
Alpine:v3.18
before 0.7.3-r0
0.7.3-r0
njs
Alpine:v3.19
before 0.7.3-r0
0.7.3-r0
njs
Alpine:v3.20
before 0.7.3-r0
0.7.3-r0
njs
Alpine:v3.21
before 0.7.3-r0
0.7.3-r0
njs
Alpine:v3.22
before 0.7.3-r0
0.7.3-r0
njs
Alpine:v3.23
before 0.7.3-r0
0.7.3-r0
njs
Alpine:v3.24
before 0.7.3-r0
0.7.3-r0

History

History
RecordedChangedSources
affectedOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-25139 is a critical vulnerability (CVSS 9.8) in F5 Njs, published February 14, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.63%, the 76th percentile. Fixed in nginx 1.20.2-r2.

References

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