How severe is CVE-2022-28049?

CVE-2022-28049 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-28049 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-28049?

CVE-2022-28049 affects F5 Njs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-28049?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-28049 published?

CVE-2022-28049 was published on 2022-04-15 and last updated on 2026-06-17.

CVE-2022-28049

CVE-2022-28049 is a medium-severity vulnerability in F5 Njs with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: F5 Njs
Published: 2022-04-15
Last modified: 2026-06-17

Description

NGINX NJS 0.7.2 was discovered to contain a NULL pointer dereference via the component njs_vmcode_array at /src/njs_vmcode.c.

Frequently asked questions

What is CVE-2022-28049?: NGINX NJS 0.7.2 was discovered to contain a NULL pointer dereference via the component njs_vmcode_array at /src/njs_vmcode.c.
How severe is CVE-2022-28049?: CVE-2022-28049 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-28049 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-28049?: CVE-2022-28049 affects F5 Njs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-28049?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-28049 published?: CVE-2022-28049 was published on 2022-04-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:f5:njs:0.7.2:*:*:*:*:*:*:*

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