How severe is CVE-2022-35540?

CVE-2022-35540 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-35540 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-35540?

CVE-2022-35540 affects Dotnetcore Agileconfig. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-35540?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-35540 published?

CVE-2022-35540 was published on 2022-08-18 and last updated on 2026-06-17.

CVE-2022-35540

CVE-2022-35540 is a critical-severity vulnerability in Dotnetcore Agileconfig with a CVSS 3.x base score of 9.8. 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-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Dotnetcore Agileconfig
Published: 2022-08-18
Last modified: 2026-06-17

Description

Hardcoded JWT Secret in AgileConfig <1.6.8 Server allows remote attackers to use the generated JWT token to gain administrator access.

Frequently asked questions

What is CVE-2022-35540?: Hardcoded JWT Secret in AgileConfig <1.6.8 Server allows remote attackers to use the generated JWT token to gain administrator access.
How severe is CVE-2022-35540?: CVE-2022-35540 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-35540 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-35540?: CVE-2022-35540 affects Dotnetcore Agileconfig. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-35540?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-35540 published?: CVE-2022-35540 was published on 2022-08-18 and last updated on 2026-06-17.

References

https://github.com/dotnetcore/AgileConfig/issues/91

Affected products (1)

cpe:2.3:a:dotnetcore:agileconfig:*:*:*:*:*:*:*:*

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