How severe is CVE-2021-40699?

CVE-2021-40699 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2021-40699 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-40699?

CVE-2021-40699 primarily affects Adobe Coldfusion. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-40699?

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

When was CVE-2021-40699 published?

CVE-2021-40699 was published on 2023-09-07 and last updated on 2026-06-17.

CVE-2021-40699

CVE-2021-40699 is a high-severity vulnerability in Adobe Coldfusion with a CVSS 3.x base score of 7.4. 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-284.

Key facts

Severity: High (CVSS 3.x base score 7.4)
EPSS exploit prediction: 0% (40th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Adobe Coldfusion
Published: 2023-09-07
Last modified: 2026-06-17

Description

ColdFusion version 2021 update 1 (and earlier) and versions 2018.10 (and earlier) are impacted by an improper access control vulnerability when checking permissions in the CFIDE path. An authenticated attacker could leverage this vulnerability to access and manipulate arbitrary data on the environment.

Frequently asked questions

What is CVE-2021-40699?: ColdFusion version 2021 update 1 (and earlier) and versions 2018.10 (and earlier) are impacted by an improper access control vulnerability when checking permissions in the CFIDE path. An authenticated attacker could leverage this vulnerability to access and manipulate arbitrary data on the environment.
How severe is CVE-2021-40699?: CVE-2021-40699 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2021-40699 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-40699?: CVE-2021-40699 primarily affects Adobe Coldfusion. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-40699?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-40699 published?: CVE-2021-40699 was published on 2023-09-07 and last updated on 2026-06-17.

References

https://helpx.adobe.com/security/products/coldfusion/apsb21-75.html

Affected products (13)

cpe:2.3:a:adobe:coldfusion:*:*:*:*:*:*:*:*
cpe:2.3:a:adobe:coldfusion:2018:-:*:*:*:*:*:*
cpe:2.3:a:adobe:coldfusion:2018:update1:*:*:*:*:*:*
cpe:2.3:a:adobe:coldfusion:2018:update10:*:*:*:*:*:*
cpe:2.3:a:adobe:coldfusion:2018:update2:*:*:*:*:*:*
cpe:2.3:a:adobe:coldfusion:2018:update3:*:*:*:*:*:*
cpe:2.3:a:adobe:coldfusion:2018:update4:*:*:*:*:*:*
cpe:2.3:a:adobe:coldfusion:2018:update5:*:*:*:*:*:*
cpe:2.3:a:adobe:coldfusion:2018:update6:*:*:*:*:*:*
cpe:2.3:a:adobe:coldfusion:2018:update7:*:*:*:*:*:*
cpe:2.3:a:adobe:coldfusion:2018:update8:*:*:*:*:*:*
cpe:2.3:a:adobe:coldfusion:2018:update9:*:*:*:*:*:*
cpe:2.3:a:adobe:coldfusion:2021:-:*:*:*:*:*:*

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